Thermal expansion of beryllium oxide in the temperature interval 20–1550°C

Abstract

The results of studies of thermal expansion of the sintered beryllium oxide in the temperature interval 20–1550°C are presented. Measurements were performed by a dilatometric method on a DIL-402C set-up manufactured by NETZSCH (Germany), with the accuracy of (1.5–2) × 10−7 K−1. Approximation dependences of coefficients of linear thermal expansion on temperature have been obtained and reference tables calculated. The data obtained are compared with data from the available literature.