The Institute of Nuclear Physics of the Siberian Branch […]
The Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences and the Institute of Solid Chemical and Mechanical Chemistry have jointly developed a new technology for the manufacture of niobium carbide. This new manufacturing technology is cheap and produces high quality tantalum carbide.
Scientists first rotate the crucible and carbon in a ball mill, grind it into a powder, perform X-ray diffraction of synchrotron radiation, and then perform directional electron beam heating by electron beam welding. When the temperature reaches 3953 ° C, the powder begins to melt, and the entire melting process consumes only In 2 minutes, it takes more than a dozen hours to produce tantalum carbide using conventional techniques, and there are gaps in the produced tantalum carbide. The researchers pointed out that the use of this new technology can also produce compounds of high melting point base metals such as antimony, tungsten, and molybdenum.
Tantalum carbide has high elastic modulus, good electrical and thermal conductivity, small thermal expansion coefficient and good impact resistance, and is suitable for industrial ceramics and other fields.