Thermal effect of linear expansion of gallium garnets Gd3Ga5O12, Gd3.04Sc1.8Ga3,16O12 and Ca3Nb1.5Ga3.5O12
Yu.M. Kozlovskii, S.V. Stankus
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Keywords: gallium garnet, gadolinium-gallium garnet, gadolinium-scandium-gallium garnet, gadolinium-niobium-gallium garnet, single crystal, thermal coefficient of linear expansion, elongation, dilatometric method, high temperatures
Abstract
The results of an experimental study of the thermal expansion of gallium garnets Gd3Ga5O12, Gd3.04Sc1.8Ga3.16O12 and Ca3Nb1.5Ga3.5O12 in a wide temperature range (293.15 - 1473 K) are presented. A noticeable effect of niobium in the structure of gallium garnets on the coefficient of thermal expansion has been found. The temperature dependences of the volumetric properties have been obtained.
|
