Chromium Boride

Name:
Chromium Boride
Detailed information:
One of several compounds of chromium and boron, e.g., CrB, CrB₂, and Cr₃B₂. They have high melting points, are very hard and corrosion resistant, and may be suitable for use in jet and rocket engines.

Properties:

CrB may be crystals. D 6.2, mp 1550C, Mohs hardness 8.5, resistivity 67 µω cm (20C). CrB2: d 5.15, mp 1850C, hardness 2010 (Knoop), resists oxidation up to 1100C. Cr3B2: may be crystals, d 6.1, Mohs hardness 9+.

Use:

Metallurgical additives, high-temperature electrical conductors, cermets, refractories, coatings resistant to attack by molten metals.