Secondary emitter is an important component of magnetron. The tantalum foil primary emitter used for magnetron is easy to produce oxide layer and burr in the process of wire cutting in the edge of the emitter. Because the thickness of the tantalum foil primary emitter used for magnetron is only 20μm-30μm.
Continue Reading →Titanium alloy is titanium based on the addition of other elements of the alloy, titanium has two kinds of homogenous crystal: titanium isomer, melting point of 1720℃, below 882℃ is dense row hexagonal lattice structure, known as α titanium; Above 882℃, it exhibits a body-centered cubic lattice structure, which is called β titanium.
Continue Reading →Rapid vacuum annealing method for tantalum tube. It consists of the following steps: the tantalum tube is cleaned and dried. The cleaned tantalum tube is placed into the heat-resistant tube and sent into the vacuum induction annealing furnace along the axial direction.
Continue Reading →Like tungsten-copper, tungsten-molybdenum and tungsten-nickel-iron alloys, tungsten-rhenium alloy (W-Re) is also a kind of high proportion tungsten-base alloy. It has a series of excellent properties of metal tungsten and metal rhenium, and is widely used in aerospace, aviation, navigation, military, national defense and other fields. Here is the basic information about the alloy:
Continue Reading →Optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high temperature tensile testing machine were used to systematically study the microstructure and high temperature tensile properties of FGH98 alloy with different Ta content.
Continue Reading →In particular, the manufacturing method of Nb-Ti, Nb-Ti-Zr, Nb-Ti-Ta alloys as superconducting electrical materials mainly includes mixing, pressing, sintering and smelting of niobium hydride powder and titanium, tantalum, zirconium, hafnium or several powders.
Continue Reading →The invention relates to a method for preparing titanium, niobium, tantalum and zirconium biomedical titanium alloy by spark plasma sintering, belonging to the technical field of biomedical material preparation.
Continue Reading →Pure titanium and titanium alloy are widely used in oral implant because of their good mechanical properties and biocompatibility, which can be combined with bone tissue to form bone. Studies confirmed that the surface characteristics of titanium and titanium alloy implants affect the rate of bone integration, especially the surface morphology affects the biological behavior and functional status of osteoblasts.
Continue Reading →Method for separating zirconium and hafnium. Specifically, zirconium compounds in acidic aqueous solution as raw materials, using diisobutyl keto (DIBK) or DIBK and neutral phosphorus extractant or DIBK and acidic phosphorus extractant synergism to extract hafnium in the feed liquid into the organic phase……
Continue Reading →A method for preparing niobium powder and other metal powder. The method involves grinding metal powder at high temperatures and in the presence of at least one liquid solvent. The method of the present invention can reduce DC leakage of metal powders and/or increase capacitance when made into capacitor anodes.
Continue Reading →A high performance molybdenum-rhenium alloy bar is composed of rhenium 5 ~ 50% and molybdenum residue according to mass percentage. And the preparation method of the high performance molybdenum-rhenium alloy bar, including the following steps:
Continue Reading →Translucent Zirconium sintered body, dental products including formed translucent Zirconium body, Zirconium raw material, and method for preparing translucent zirconia sintered body, dental products including formed translucent zirconia body and method for preparing zirconia raw material.
Continue Reading →The invention relates to a laser cladding method for preparing a nickel-based heat resistant and wear-resistant coating on a zirconium alloy surface, which includes a step of grinding and cleaning the zirconium alloy substrate surface to be coated by laser;
Continue Reading →Multivariate niobium alloy ingot manufacturing methods, the method by adding aluminum powder metallurgy grade niobium oxide powder, compound, lime powder, alloy elements and rare earth elements, after mixing, heat furnace charging aluminum reduction reaction, separation of metal and slag……
Continue Reading →The invention relates to a method for preparing a corrosion-resistant and wear-resistant tantalum composite coating, which includes the following steps :(1) the vapor deposition reactor and all pipes are flushed and drained by inert gas; (2) Put the material to be deposited into the gas phase deposition reactor after treatment;
Continue Reading →The preparation method of platinum-iridium tip and the device thereof relate to a scanning probe microscope. A simple, rapid and safe method for preparing platinum - iridium tip is provided. Ac voltage signal generation circuit, power amplifier circuit, corrosion current sampling circuit, AC signal amplifier circuit, AC RMS conversion circuit, DC signal amplifier circuit, data acquisition circuit, brake circuit and corrosion electrolytic cell.
Continue Reading →In particular, a method for refining the particle size of titanium and titanium alloys is provided, including thermal management of high strain rate multi-axis forging. During forging, the high strain rate heats the inner area of the workpiece adiabatically, and the thermal management system is used to heat the outer surface area to the workpiece forging temperature while allowing the inner area to cool to the workpiece forging temperature.
Continue Reading →The invention relates to a niobium or tantalum strip、tantalum foil production method, in which niobium or tantalum metal billet with thickness of 40~100mm is rolled by medium thick plate method, and when niobium or tantalum plate is thin, the sheet is welded into a strip and the belt is led by welding before and after rolling, and the finished product with thickness of 0.001~0.5mm is obtained.
Continue Reading →Platinum resistance air flow rate sensor, including platinum resistance, the platinum resistance is provided with a microcontroller module and a current detection module connected with the microcontrol module, display module;
Continue Reading →Energy shortage has become a prominent problem restricting the sustainable development of China's automobile industry. Considering the social and economic benefits, cars with low energy consumption and low emissions are the final demand for the development of a conservation-oriented society.
Continue Reading →The invention relates to a titanium alloy and a preparation method thereof, in particular a tinb-based ultrafine and nanocrystalline titanium alloy and a preparation method thereof, especially a low-level fault energy, large-size ultrafine titanium alloy or nanocrystalline titanium alloy and a preparation method thereof, belonging to the technical field of new materials.
Continue Reading →The composition of zirconium alloys is important because of the deterioration of the mechanical properties of coated tubes due to brittle-cracking and crystal growth caused by neutron radiation and high temperature and pressure corrosion conditions.
Continue Reading →The preparation method of high density molybdenum tube belongs to the field of refractory metal material processing and preparation. The invention intends to solve the problems of high cost and low density of molybdenum tube in the existing molybdenum tube preparation technology.
Continue Reading →Tantalum ring and preparation method, sputtering device containing tantalum ring and its application, the tantalum ring comprises a ring and a pattern arranged on the surface of the ring, the pattern is conical pit shape;
Continue Reading →Kinds of zirconium tube heat exchanger, including vertical set and the upper and lower end are open shell, as described in the top of the cylinder exposure in seal set on tube sheet, described seal with end on tube sheet on the head, the tube sheet in the above mentioned cavity is formed between the head……
Continue Reading →The technical field of temperature measurement, more specifically, relates to a densification method of a tungsten-rhenium thermocouple oxidation resistant coating. The tungsten-rhenium thermocouple oxidation resistance coating is attached to the tungsten-rhenium thermocouple substrate surface, including a transition layer and an……
Continue Reading →A niobium alloy for capacitors containing at least one element selected from groups 2 to 16 of the periodic table as an alloying component and containing 0.1 to 70 mass % niobium monitride crystals with average particle size of 0.05 to 5μm and BET specific surface area of 0.5 to 40m2/g, Sintered bodies of niobium granular products with average particle size of 10 to 500μm, niobium alloy powder or sintered bodies thereof, are capacitors of sintered bodies and methods of manufacture thereof.
Continue Reading →Sputtering is to use the ions generated by ion source to accelerate the aggregation into high-speed ion flow in vacuum to bombard the solid surface, so that the atoms on the solid surface leave the target and deposit on the surface of the base material, so as to form nano (or micron) film.
Continue Reading →A high niobium titanium aluminum alloy is composed of titanium, aluminum, niobium, carbon, tungsten and yttrium. Its characteristics are as follows :Al content is 45 -- 46%,Nb content is 8 -- 10%,C content is 0 -- 0.2%,W content is 0 -- 0.2%, Y content is 0 -- 0.1%, all of which are atomic percentage and allowance is Ti.
Continue Reading →The protective coating of tantalum alloy in high temperature oxidation environment was prepared. Methods Slurry melting method was used in Ta - 12W alloy surface.The bottom layer and the surface layer were prepared successively, and the silicide composite coating was obtained by two melting treatments.
Continue Reading →Niobium-titanium alloy is one of the main superconducting materials. There are a lot of debris and discarded copper - coated niobium-titanium wire in the process of niobium-titanium alloy. Decarbonization: For copper-clad Nb-Ti wires, decarbonization is performed by anodic oxidation first.
Continue Reading →Zirconium and titanium have many similar physical and chemical properties. For example, they have very high melting points: 1668℃ for pure titanium and 1852℃ for pure zirconium. Zirconium and titanium have higher chemical activity, zirconium is higher than titanium, but the surface can form a dense passivation film, has high corrosion resistance.
Continue Reading →Titanium alloy is a new kind of structural material, it has excellent comprehensive properties, such as low density (~4.5g·cm-3), high specific strength and specific fracture toughness, good fatigue strength and crack propagation resistance……
Continue Reading →Tantalum is very resistant to chemical and atmospheric erosion under 150℃. Except for hydrofluoric acid, fuming sulfur trioxide and concentrated sulfuric and phosphoric acid at high temperature, all other acids are the most stable in pairs.
Continue Reading →With the emergence and development of high-speed aircraft, thermal energy storage and nuclear thermal power generation technologies, refractory metals represented by niobium alloy, such as C-103 and NB521, show a good application prospect in rocket combustion chamber, heat dissipation and prevention.
Continue Reading →Titanium alloy has the advantages of low density, high specific strength, good corrosion resistance, good process performance, so it is increasingly widely used in aviation, aerospace, chemical industry, shipbuilding and other industrial sectors, rapid development. Titanium alloys are particularly suitable for aerospace components such as gas turbines.
Continue Reading →A certain amount of tungsten is added into tantalum to form the tantalum tungsten binary alloy, which has both the corrosion resistance of tantalum and the good high temperature strength of tungsten. This alloy has the advantages of high temperature resistance, high strength, good fracture toughness, corrosion resistance and so on, and has been widely used in aviation, aerospace, chemical industry, nuclear industry, high temperature technology and other fields.
Continue Reading →The composition of niobium-titanium superconducting alloy material should meet the requirements of Tc, Hc2 and Jc as high as possible, generally in the range of Nb-(40% ~ 55%)Ti. This kind of gold component can not only get high Tc and Hc2, but also produce superconducting material with high current carrying capacity and large amount of precipitated phase.
Continue Reading →Tantalum also has excellent chemical properties and is highly resistant to corrosion. No reaction was found to hydrochloric acid, concentrated nitric acid and aqua regia under hot and cold conditions. Soaking tantalum in sulfuric acid at 200℃ for one year only damaged the surface layer by 0.006 mm.
Continue Reading →Titanium (Ti) is a silver-white excessive metal, characterized by light weight, high strength, metallic luster, and good corrosion resistance. Because of its stable chemical properties, high temperature resistance, low temperature resistance, strong acid resistance, strong alkali resistance, as well as high strength, low density, it is often used to manufacture rockets and spacecraft, and even gained the reputation as "space metal".
Continue Reading →As an important component to realize temperature detection, temperature sensors are widely used in scientific research, industry and agriculture, national defense and other departments. Platinum wire temperature sensor has a large detection temperature range, stable chemical properties and high detection accuracy.
Continue Reading →The invention relates to a mechanical continuous knurling process for the inner and outer surface of sputtering tantalum ring. The technological process is as follows: firstly, prepare tantalum strip, cut the connecting gap, pickling, roll, connect the connecting gap, shaping, knurling the inner and outer surface, turning the side arc, carrying out the side knurling, and removing the connecting gap.
Continue Reading →A smelting method for titanium niobium alloy ingots, the alloy ingots according to the weight percentage, niobium content is 46.8 ~ 55%, the allowance for titanium, the specific steps are as follows: a plurality of titanium rods and a plurality of niobium rods are welded into consumable electrode;
Continue Reading →A method for preparing metal niobium strip relates to a method for preparing metal niobium strip with high elongation and high grain grade performance by forging rolling process. The preparation process successively includes the following processes :(1) the diameter of 150 ~ 160mm electron beam melting niobium ingot, at 800 ~ 1100℃, with air hammer forging;
Continue Reading →The invention relates to an anti-oxidation material and a method for preparing an anti-oxidation coating of tantalum tungsten alloy. It is characterized by the first antioxidant material and the second antioxidant material composition;
Continue Reading →Due to thermal history, it is difficult to generate oxides on the surface of platinum-carbon alloy coatings, or even more difficult to introduce etching to produce oxides on the surface. In this experiment, the bumps of the platinum-rhodium wire are bonded to a simple platinum-rhodium wire substrate on which there is no resistance around the electrode, resulting in bumps.
Continue Reading →The invention relates to Ti37 ~ 52Ni^5. Al 6Nb 3Hf^ high temperature alloy material, by adding elements aluminium, niobium, hafnium in the titanium nickel alloy to improve the room temperature yield strength, high temperature mechanical properties and durability of a new type of high temperature alloy material.
Continue Reading →Its characteristics are: the tantalum-niobium alloy wire chemical composition (weight) percentage of tantalum 0.1-99.9%, beneficial doping 0.001-0.2%, niobium allowance and inevitable impurities.
Continue Reading →Making tungsten parts is very complicated because of its hardness. Therefore, a high degree of professionalism and experience is required to achieve a high degree of accuracy in parts. We can produce high quality and high precision tungsten parts according to customer drawings.
Continue Reading →Medical precious metals refer to the general term of gold, silver, platinum and their alloys used as biomedical materials. The precious metal has good biocompatibility, strong oxidation resistance and corrosion resistance, unique physical and chemical stability, excellent processing characteristics, and no toxic side effects on human tissue.
Continue Reading →The carbide reduces the ductility of tungsten and leads to brittle intergranular fracture. These cracks are inevitably formed in tungsten during spark plasma sintering through carbon diffusion due to the action of graphite mould.
Continue Reading →To further improve the surgical outcome of early femoral head necrosis, trabecular metal (tantalum) is designed to interfere with stage I or II femoral necrosis and may be used in conjunction with bone grafts.
Continue Reading →A series of alloy components with strong amorphous forming ability have been developed. The critical cooling rate of zircaloy based amorphous alloys is low to the lK/s level and can be easily prepared into three-dimensional bulk materials by copper mold casting and water quenching.
Continue Reading →The wear behavior of powder metallurgy γ -tial alloy Ti-45Al-5Nb-0.4W + 2Nb (atomic percentage) containing niobium particles has been investigated by pin-disk wear tests at room temperature. Dry slide wear tests were performed on zirconia discs in different environments: argon, hydrogen with nitrogen mixture, air and oxygen.
Continue Reading →In the application of laser powder bed melting technology, α+β duplex titanium alloy has a lot of applications in aerospace, Marine engineering, military equipment and biomedical fields because of its high specific strength……
Continue Reading →Molybdenum tungsten alloy
Alloys containing molybdenum and tungsten, including molybdenum-based molybdenum-tungsten alloys and tungsten-molybdenum alloy series based on tungsten. The alloy can be formed in any proportion and is a complete solid solution alloy at all temperatures.
In the artificial implantation of biomedical metal materials, titanium alloy with its good biocompatibility, mechanical properties (high specific strength, low elastic modulus, etc.) and wear and corrosion resistance, As artificial joints (hip, knee, shoulder, ankle, elbow, wrist, knuckles, etc.)……
Continue Reading →Titanium-tantalum-niobium-Zirconium (Ti-Ta-Nb-Zr) alloy is a new material which can be used in plastic surgery. However, there are drawbacks to these stents manufactured using traditional methods, such as irregular pore sizes, unsuitable mechanical features, and poor connectivity between the holes.
Continue Reading →An aluminum-tungsten-niobium three-element master alloy with a composition of 25 ~ 40wt% W, 20 ~ 35wt% Nb, 0 ~ 0.3wt% trace elements, and a margin of Al. The invention also discloses a method for preparing a modified master alloy and a method for preparing a high Nb-Ti-Al intermetallic compound ingot by using the master alloy.
Continue Reading →Tungsten-rhenium alloy is a kind of alloy composed of tungsten matrix and adding different content of rhenium. Both tungsten and rhenium are refractory metals. Combined with the "rhenium effect", tungsten-rhenium alloys exhibit better ductility, higher recrystallization temperatures, better creep resistance, and higher electrical resistivity than tungsten.
Continue Reading →Tantalum can be produced by several methods, and the average recovery rate of all methods is more than 90% when the metal grade is 99.5%. However, only two methods have been successfully used in industrial production:
Continue Reading →It is well known that the technology development trend of target materials is closely related to the film technology development trend of downstream application industry. As the technology improvement of application industry in film products or components, the target technology should also change.
Continue Reading →Influence factors: workability and metal material chemical composition, hardness, toughness, thermal conductivity, metallographic structure and work hardening ability and other factors.
Continue Reading →The process superconducting material developed with NbTi alloy composite superconductors must be encased or embedded in an ordinary good conductor to provide a low resistance bypass for sudden transition to normal at certain lines.
Continue Reading →Niobium titanium alloy superconductor is widely used in thousands of known superconductors due to its excellent comprehensive properties and is the key material in medical nuclear magnetic resonance and superconducting magnets for large scientific devices.
Continue Reading →The main strengthening ways of niobium are solution, precipitation and deformation heat treatment. In niobium alloys, the alloys containing tungsten and molybdenum can significantly improve their high and low temperature strength, but too much content will reduce the process properties of the alloys.
Continue Reading →Tantalum, a rare metal, is characterized by high melting point, high strength, corrosion resistance, high thermal stability, high thermal conductivity, excellent bioinert and biocompatible, and no radioactivity.
Continue Reading →Tungsten, as a metal material with strong hardness and high temperature resistance, is often used in filament, electrode, thermocouple or probe needle, etc., but tungsten itself has the problems of brittle and low plasticity, which greatly reduces its service life in the process of use.
Continue Reading →Usually we refer to the non-ferrous metals iron, chromium, manganese three metals other than all metals. Nonferrous metals in a broad sense include nonferrous alloys.
Continue Reading →As an important material, uranium-niobium alloy is widely used in the field of nuclear industry because of its high density, excellent corrosion resistance and good mechanical properties.
Continue Reading →Using metal powder as raw material, tantalum powder was added into niobium powder in two different forms and then mixed with tungsten powder by powder metallurgy method. Then the forming billet was put into graphite crucible and sintered in vacuum carbon tube reduction furnace.
Continue Reading →Aircraft engines require the alloy to have good thermal strength and specific strength, while the fuselage requires the alloy to have good strength, corrosion resistance, light weight and other excellent characteristics at moderate temperature.
Continue Reading →In clinical practice, autologous or allogeneic bone transplantation has been widely used to repair bone defects. Therefore, a variety of artificial bone materials, including metal materials and polymer materials, have attracted extensive attention.
Continue Reading →There are two ways to make tungsten - rhenium alloy: powder metallurgy and smelting. Powder metallurgy is commonly used in practical production. The powder metallurgy process for the production of tungsten-rhenium alloy is:
Continue Reading →Speaking of metal pipe, a lot of people will think of titanium pipe. Indeed, titanium tube in our daily life, the application is very extensive. However, many people do not know much about titanium tubes.
Continue Reading →The target material is a material used as a cathode in sputtering deposition technology, which can be separated from the cathode in the form of molecules, atoms or ions and redeposited on the surface of the anode under the impact of positively charged cations.
Continue Reading →The tungsten wire can be used as the core in the cavity of the melting model, and the liquid metal can be poured into it to wrap it, similar to the structure of steel and concrete, which does not affect the casting fluidity, but also can increase the high-temperature strength of the blade turbine, because the large amount of tungsten can reduce the cost.
Continue Reading →Platinum is one of the world's rarest metals used in jewelry. Only a few places in the world, such as South Africa and Russia, produce just 5% of gold a year. Tons of ore, more than 150 processes that take months to extract, produce enough platinum to make a simple ring weighing a few grams.
Continue Reading →The material can cost ten or even tens of times as much as pure titanium. It's also a class of titanium alloys, but it's super elastic, and it's shape memory. We once made a toy out of memory titanium, which was a lotus flower.
Continue Reading →1, large chemical activity, easy oxidation. Zirconium alloy is easy to form an oxide layer in the air, and the strength and hardness of the oxide surface layer are higher, so the grinding force per unit area is larger.
Continue Reading →The most important use of niobium is the manufacture of various niobium alloys and as an additive in steel. Among all kinds of microalloying elements in steel, niobium is the most effective microalloying element.
Continue Reading →The element vanadium exists in solid state in titanomagnetite. After the first stage of treatment, the magnetite concentrate enters the traditional baking leaching precipitation process for vanadium recovery.
Continue Reading →Maybe you do not know the chromium zirconium copper tube, in fact, the utilization rate of chromium zirconium copper tube is very high now, in our home a lot of electrical appliances are used, like air conditioning ah, refrigerator ah, and some other.
Continue Reading →Graphite heat exchanger is a widely used heat exchange equipment in industry. It is mainly used for heat exchange of corrosive media such as sulfuric acid, hydrochloric acid, acetic acid and phosphoric acid.
Continue Reading →Platinum crucible is mainly refined from high purity platinum. Now because some factories, pharmaceutical factories, scientific research institutions need related scientific experiments. These experiments may involve highly corrosive chemicals or require forging at high temperatures.
Continue Reading →Due to the great defects of titanium itself, titanium alloy has broken through the "thermal barrier" of 600 degrees, and the service temperature has reached a higher level. It is still very difficult to replace nickel-based superalloy, and better new materials and new processes are needed.
Continue Reading →There are two ways to make tungsten-rhenium alloy: powder metallurgy and smelting, and powder metallurgy is commonly used in actual production. The powder metallurgy process for producing tungsten-rhenium alloys is as follows:
Continue Reading →Tantalum forms a stable anodic oxidation film in acidic electrolyte. Electrolytic capacitors made of tantalum have the advantages of large capacity, small volume and good reliability. The production of capacitors is the most important application of tantalum……
Continue Reading →High strength and toughness light zirconium alloy can be divided into crystalline zirconium alloy and amorphous zirconium alloy.
Crystalline zirconium alloy can be divided into α type zirconium alloy, α+β type zirconium alloy and β type zirconium alloy according to its phase composition.
The main strengthening ways of niobium are solid solution, precipitation and deformation heat treatment. In Nb alloy, the high and low temperature strength of Nb alloy can be significantly improved by containing tungsten and molybdenum, but too much will reduce the technological properties of Nb alloy.
Continue Reading →The thermal conductivity of titanium alloy is very poor, and the contact length of the chip and the tool is very short, which is not conducive to the export of cutting heat, so that the temperature of the cutting edge area is high, about twice as high as that of the cutting 45 steel.
Continue Reading →Platinum-iridium alloy is a binary platinum-based alloy containing iridium. It is a continuous solid solution at high temperature and decompose in solid phase at 975 ~ 700℃ after slow cooling, but the phase equilibrium process is very slow.
Continue Reading →Platinum-iridium alloys have high melting point, high density, high hardness, high strength, and high elasticity, and these properties increase with increasing iridium concentration.
Continue Reading →After crushing and grinding tantalum ore is usually prepared by two steps. Wet process, through the jig, screw machine, washing tank, shaking table with the help of gravity separation of coarse concentrate.
Continue Reading →
