Open AccessMechanical properties of ceramic materials SiC-BeO
Author(s) -
Ш. Ш. Шабанов,
Г. Д. Кардашова
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1005/1/012018
Subject(s) - beryllium oxide , materials science , ceramic , silicon carbide , composite material , beryllium , indentation hardness , elastic modulus , grain size , metallurgy , microstructure , chemistry , organic chemistry
High-density ceramic based on silicon carbide with the addition of beryllium oxide compositions (1-2)% wt. With a step of 0.2 was obtained. X-ray diffraction studies of SiC-BeO ceramics showed changes in the lattice parameter of SiC “c” with the addition of beryllium oxide, the minimum value of which was observed for a composition of 1.4% wt. BeO. For compositions greater than 1.4% wt. BeO was observed only polytype 6H. The grain size of sintered ceramic materials reached up to 20 microns. The elastic moduli, microhardness, and shear strength for hot-pressed SiC-BeO ceramic materials are determined.