Study on thermal properties of titanium-doped sapphire crystal

被引：0
|
作者：
Xu, Min [1 ]
Si, Ji-Liang [1 ]
Zhang, Xiao-Cui [1 ]
Qi, Hong-Ji [1 ]
Chen, Jian-Yu [1 ]
机构：
[1] Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
来源：
Rengong Jingti Xuebao/Journal of Synthetic Crystals | 2014年 / 43卷 / 05期
关键词：
The thermal properties of titanium-doped sapphire crystal were systematically analyzed. The principal thermal expansion coefficients were measured to be α1=3.8×10-6 K-1 and α3=6.4×10-6 K-1 over the temperature range of 303.15-764.15 K with a thermal dilatometer. The experimental specific heat was 0.766 J ·g-1 ·K-1 at 298.15 K. The thermal diffusivity of the crystal was measured over the temperature range of 303-570 K for the first time through the laser flash method. Dependences of principal thermal conductivity components k on thermodynamic temperature T were fitted to be k1=-626.60772/(-2.52108T+706.53622)+5.96781 and k3=-1347.76226/(-2.37632T+616.40571)+5.88351;
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页码：1043 / 1049
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