Hafnium, chemical symbol Hf, atomic number 72, melting point 2233℃, is a high melting point rare metal. Metal hafnium forms a layer of oxide film in the air, with strong corrosion resistance and stable chemical properties. Metal hafnium p

Zirconium carbide (ZrC) is one of the important high-temperature structure materials with various physical-chemical properties, such as high melting point (3 550℃), high hardness (25 GPa),high corrosion and wear resistance, and high elect

Due to their excellent properties such as high melting point, high electrical conductivity, high oxidation resistance and good chemical stability, transition metal diboride (ZrB2, HfB2) based ceramics have good potential for various aviation

Important properties of powders can be grouped into four categories: (1) physical properties, (2) chemical composition, (3) phase composition, and (4) surface properties.

LaB6 powder (lanthanum boride) was originally mainly used in military industry, aviation, aerospace and some high-tech fields. With the maturity of manufacturing technology, the reduction of production cost and the wider range of applicatio

The present paper gives the results of investigations carried out on the effect of HfB2 addition on the densification and properties of B4C by hot-pressing method.

The present paper gives the results of investigations carried out on the effect of HfB2 addition on the densification and properties of B4C by hot-pressing method.

The development of alternative energy storage systems with high energy density, long cycle life, and low cost has become an urgent focus of the scientific community. As an "electron-deficient" element with high electronegativity, boron not o

hen HB2 is used above 1800 °C, filler modification must be carried out to improve the antioxidant performance. Adding SiC can improve the oxidation resistance of HfB2 at 1300~1500℃.

Metal chromium and nitrogen will form metal chromium nitriding substances with different nitrogen contents under different conditions. Common metal chromium nitrides are CrN and Cr2N, which are called chromium nitrides. Both chromium nitrid