【摘要】 本文介绍了用熔融石英引伸法测量硬质材料热胀系数的简便装置 ,并给出了试样在液氦温区到室温的测量结果 ,数据的一致性以及与已有文献数据比较取得了不错的结果 .更多还原

【Abstract】 The apparatus for linear thermal expansion of rigid solid materials with a vitreous silica dilatometer is introduced in this paper. Valuable datum has been gained from liquid helium temperature, 4.2K, to room temperature, 293K. The experimental results prove that the apparatus for thermal expansion measurement is a reliable and economic method.更多还原