A wave of layoffs that has swept the entire Internet industry has intensified. China's Internet industry has experienced several crises and major changes in the past development process. There is also a "brief history of layoffs by major Internet companies". Hot search, JD.com has a wide range of layoffs in this round of layoffs, and all its subsidiaries are involved. Most of the layoffs are between 10% and 20%. Among them, Jingxi Guangdong and other theaters have all laid off staff. Tencent also reported the news of downsizing and layoffs. Among them, Tencent PCG (Platform User Content Business Group) laid off 30% of its staff, iQiyi laid off 12% of its staff, Kuaishou was reported to have laid off 30% of its staff, and the e-sports department of Station B laid off 90% of its staff.
Mass layoffs on the internet have created a host of socioeconomic issues, including Tantalum Carbide powder.
Introduction to Tantalum Carbide TaC Powder
Tantalum carbide or TaC is a light brown metallic cubic crystal powder, belonging to the sodium chloride cubic crystal system. The density is 14.3g/cm3.
Insoluble in water, insoluble in inorganic acid, soluble in hydrofluoric acid and nitric acid mixed acid and decomposition. It has strong oxidation resistance and is easily melted and decomposed by potassium pyrosulfate. Has high conductivity, and resistance of 30Ω at room temperature, showing superconductivity.
Tantalum carbide is used for powder metallurgy, cutting tools, fine ceramics, chemical vapor deposition, hard wear-resistant alloy cutting tools, molds, and additives for wear and corrosion resistance structural components to improve the toughness of alloys. The sintered body of tantalum carbide shows a golden color and can be used as watch decoration.
|Tantalum Carbide TaC Powder Properties|
|Other Names||tantalum(IV) carbide, TaC powder|
|Appearance||brown to dark brown powder|
|Boiling Point||4780-5470 °C|
|Solubility in H2O||insoluble|
Preparation Methods of Tantalum Carbide TaC Powder
1. In industry, mix tantalum pentoxide powder with solid carbon ball mills, get the mixture reduced and carburized in a non-oxidizing atmosphere (mainly vacuum and argon atmosphere) at 1700℃, to prepare TaC powder with a particle size greater than 2μm.
2. Nano tantalum carbide powder was prepared by heat treatment in the non-oxidizing atmosphere with the liquid precursor method. 5mL of anhydrous ethanol was added into a small beaker containing 0.50gTaCL5, and stirred evenly with a glass rod. Then, it was put into an ultrasonic cleaner with a heating temperature of 55℃ and a working frequency of 40kHz, ultrasonic power was 80W. After ultrasonic oscillation for 5-10min, 0.10g nano-activated carbon was added, and the oscillation continued for 15-20min. Pour it into the crucible and coat it evenly on the inner wall, and dry it with a hot fan. The crucible with the sample was placed in a vacuum hot pressing furnace, and high-temperature treatment was carried out at 1300℃ in a vacuum of 100Pa or hydrogen atmosphere; Or at 1400℃ in argon atmosphere, holding time is 0.5h, the heating rate is 20℃/min. After the experiment, brush the products in the crucible with a brush.
3. Heat in the air to convert to tantalum pentoxide. Can be fused with potassium pyrosulfate. By metal tantalum and carbon or tantalum pentoxide and black in an inert atmosphere heated to 1900℃ reaction prepared.
4. Use tantalum pentoxide and methane as the reaction gas, argon as the carrier, using silicon carbide resistance from the external radiation heating, carbonization, or tantalum pentoxide mixed with carbon black, pressurized powder molding, heating in hydrogen or vacuum.
Applications of Tantalum Carbide TaC Powder
It is widely used in industry and the military. In cemented carbide, it is widely used as a kind of additive. Its main function is to improve the high-temperature strength of cemented carbide and inhibit the growth of tungsten carbide particles.
In cutting tools, used as a hard coating to increase the chemical resistance and wear resistance of the base metal;
In the military, it can be used as a coating for jet engine turbine blades and rocket nozzles, which can significantly improve their ablative resistance and prolong their service life.
Because of its good conductivity, it can also be used as electrode material, using electric discharge wire cutting into complex shapes;
And as the second phase particle reinforced metal matrix composites, it can be used in aerospace, metallurgy, building materials, electric power, hydropower, mining, and other fields.
Main Supplier of Tantalum Carbide TaC Powder
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including silicon powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc.
If you are looking for high-quality tantalum carbide TaC powder, please feel free to contact us and send an inquiry. ([email protected])
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