Recently, the research group of Fang Qianfeng, a researcher at the Institute of Solid State Physics, Chinese Academy of Sciences, made significant progress in the development of nanostructured tungsten-based alloys, and successfully prepared high-strength dual-nanostructured tungsten materials.
China is still the world's largest molybdenum producer. China's molybdenum output in the second quarter of 2019 was 230,42 tons, a decrease of 1% from the previous month and a 2% increase from the same period last year.
According to the website of the Ministry of Industry and Information Technology, the Ministry of Industry and Information Technology and the Ministry of Natural Resources jointly issued a notice on the release of the total amount of rare earth and tungsten mining, smelting and separation control indicators.
Vegetable oil is the most important food for the people. It is not only the most basic raw material for the food industry, but also an important raw material for industrial and agricultural production and national defense construction.
In recent years, researchers from the Massachusetts Institute of Technology and China have developed a capacity-type lithium battery containing molybdenum material, which has higher weight energy density and volumetric energy density than conventional commercial batteries.
Sintering of tungsten-based heavy alloys is an important part. The sintering process has a great influence on the density, grain size, segregation and microstructure of the alloy.
Due to its high strength, high melting point, corrosion resistance and wear resistance, molybdenum has been used in steel, chemical, electrical, pharmaceutical and agricultural fields. China is the country with the most abundant molybdenum resources in the world.
Tungsten is a rare high melting point metal in nature with a melting point of up to 3,410 ° C. It has high density, high hardness, high wear resistance, high electrical conductivity and high temperature strength.
