Hydrogen solubility in boron carbide
Hydrogen solubility in boron carbide
复制标题
氢在碳化硼中的溶解度
DOI：
10.1016/0925-8388(92)90180-h
复制
发表时间：
1992
影响因子：
6.2
通讯作者：
M. Miyake
中科院分区：
文献类型：
--
作者：
Yoshiro Shirasu;S. Yamanaka;M. Miyake
在700-1000 °C的温度范围内，在低于105 Pa的氢气压力下，对氢气在B4 C中的溶解度进行了测量。溶解度数据严格遵守Sieverts定律。得到负的溶解焓。在氢原子溶解于B4 C间隙位的假设下，提出了氢在B4 C中溶解度的稀溶液模型。通过热力学分析估算了B_4C中氢的偏摩尔焓和偏摩尔熵。
Solubility measurements have been performed for hydrogen in B4C in the temperature range 700–1000 °C at a hydrogen pressure below 105Pa. The solubility data closely obeyed Sieverts' law. A negative enthalpy of solution was obtained. A dilute solution model was proposed for the hydrogen solubility in B4C on the assumption that hydrogen atoms are dissolved in interstitial sites in B4C. The partial molar enthalpy and entropy of hydrogen in B4C were estimated from the thermodynamic analysis.