Product Name: Yttrium Hexaboride (YB6) 
Specification: 0.8-10um (D50) 
Appearance: Irregular 
Color: Black Grey 
Features: high hardness, high elastic modulus, high melting point, good thermal stability, oxidation resistance, excellent chemical stability, good electrical and magnetic properties, wear resistance 
Application: Ultra high temperature ceramics, extreme environmental materials, aerospace, atomic energy industry, grinding materials, electronics industry, nuclear reactor neutron absorption materials and other fields

English name: Yttrium hexaborate 

Chemical formula: YB6 
Molecular weight: 237.9 
Melting point: 2345 ℃ 
Density: 2.23g/cm3 
Application: Yttrium boride has high hardness, high elastic modulus, high melting point, and excellent thermal stability, among which the most common forms are yttrium tetraborate (yb4) and yttrium hexaboride (yb6). Yb4 and Yb6 have tetragonal and cubic crystal structures, respectively, and both have low brittleness and good mechanical failure tolerance. They are expected to be applied in the field of ultra-high temperature ceramics to improve the toughness and ductility of ceramic materials. Compared with Yb4, Yb6 ceramics are more prone to dislocation formation during deformation and have better ductility. At the same time, rare earth hexaborides also have the characteristics of low work function, high conductivity, high emission current density, and strong thermal radiation resistance, making them potential candidate materials in the fields of electron emission materials, thermoelectric materials, and superconducting materials. Therefore, the application prospects of rare earth hexaborides such as Yb6 are very broad. However, Yb6 with a small cationic radius is structurally unstable at high temperatures and will decompose into Yb4 above 1700 ℃. Due to its excellent physicochemical and electrical properties such as high melting point, high hardness and strength, low density, oxidation resistance, excellent chemical stability, and good electrical and magnetic properties, yttrium boride (YB6/YB4) is a high-performance high-temperature thermoelectric material suitable for extreme environments such as ultra-high temperature and nuclear environments. The application fields of yttrium boride (YB6/YB4) involve various high-temperature thermoelectric component materials required for hypersonic aircraft leading edge thermal protection systems and rocket propulsion components.