Thermal expansion of chromium at high temperature

Abstract

Measurements of linear thermal expansion by pushrod dilatometry to 1873 K confirm the \ensuremath{\gamma}-ray density measurements by Stankus in 1993 which indicated that the coefficient of expansion of chromium increases much more rapidly above \ensuremath{\sim}1200 K than the heat capacity. The increase in expansion is also much greater than in Mo and W where anharmonicity is important. Magnetic spin effects are a possible source. \textcopyright{} 1996 The American Physical Society.