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.
The stability of Ta-W alloy is even higher than that of gold and foil in acidic and neutral medium at 200℃. There are mainly thermite reduction methods, which use aluminum as reducing agent to reduce single crystal powder to ferroniobium or tantalum or niobium, and then use electron beam furnace to get pure tantalum or niobium porous tantalum metal is a special porous sub material, the whole structure and the body sponge bone is the most similar, its strength and toughness than the body sponge bone number, Then medical experts at home and abroad with porous tantalum metal bar as body implants, eliminate the early femoral head necrosis bone, for example, tantalum can take hard tissue bonding indirectly, therefore many bone implants are porous tantalum coating tantalum besides has a special function of resistance to erosion, also has good insulating strength, plasticity and stays and processing function, so the structure of the chemical equipment is more valuable materials. Tantalum products are widely used in chemical processing industry, petroleum industry, pharmaceutical manufacturing industry and food processing industry.
Tantalum can be used to make all kinds of malleable alloys with high melting points. Some of those alloys can be used as materials for working superhard metals and for making superalloys for jet engines, chemical testing equipment, nuclear reactors and side parts. After deducting non gross profit reflects the industry's prosperity, single quarter financial rules keep reducing: annual net profit %, but deducting non compared to the same year %, we analyze the main reason for the income structure has changed greatly: sponge titanium benefit dedication strengthened, very often profit and loss greatly reduced tantalum has high ductibility, can be stretched into silk.
Those tantalum wires are used to vaporize metals such as aluminum. Tantalum is most commonly used in immobilization surgery and implants because it resists corrosion in biological fluids and lacks tissue. For example, tantalum can be indirectly bonded to hard tissue, so many bone implants are porous tantalum coated. The use of tantalum in all kinds of inorganic acid in the device, tantalum can be used to replace stainless steel, the fixed number of years can be improved dozens of times than stainless steel. (2) In the heavy industry, electronics, electrical and other industries, tantalum can replace the tasks that used to be carried by the precious metal platinum, so that the cost is greatly reduced.
③ Half of the world's production of tantalum is used in the production of tantalum capacitors, which can be installed in military devices. The country's domestic military industry is particularly well developed and is the world's largest arms exporter.
Reaction in chemical media tantalum tungsten alloy quality is good, almost in other environments tantalum can quickly become a layer of surface oxide film and tightly coated in the metal matrix slightly higher, the oxide film is thin and precise, almost all media have impervious, and if there is harm, can immediately self-healing.
