Cemented carbide is an alloy material made of hard compound of refractory metal and bonding metal through powder metallurgy process.Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, esp

It is reported that China Aerospace Science and Technology Corporation (CASTC) will begin to develop a high-tech aircraft, which is more efficient than the retired space shuttle. It uses a variety of power and can take off from ordinary airports and fly straight into orbit. The combined cycle engine

In 1792, the Swedish chemist Elm used a mixture of charcoal and molybdic acid blended with linseed oil and burned in a sealed manner to obtain molybdenum. Because metallic molybdenum has the advantages of high strength, high melting point, corrosion resistance, and wear resistance, it has been widel

Metallographic preparation is the basis for the observation of the microstructure of materials, as well as an important method for studying material properties and detecting defects and failures. In order to further improve the safety of tungsten-zirconium alloy metallographic sample preparation and