Cyogenic Thermal Conductivity Measurements of Yb:YAG Ceramics
PLASMA AND FUSION RESEARCH(2022)
摘要
Thermal conductivity of 9.8 at% Ytterbium-doped Yttrium Aluminum Garnet (Yb:YAG) ceramics has been measured by three systems at Commissariat a l'Energie Atomique et aux energies alternatives (CEA Paris-Saclay) and at the National Institute for Fusion Science (NIFS). For accurate measurements, thermal impedances in thermal systems should be negligibly small. However, each system includes some thermal impedance in a heat flow path. This paper describes that thermal conductivity of the 9.8% doped Yb:YAG ceramics and discusses the compensation method for thermal impedance in each system. (C) 2022 The Japan Society of Plasma Science and Nuclear Fusion Research
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关键词
thermal conductivity, Yb:YAG, cryogenic, steady-state differential method
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