Hf对一种高温合金与陶瓷材料润湿性及界面反应的影响*

陈晓燕, 周亦胄, 张朝威, 金涛, 孙晓峰

EFFECT OF Hf ON THE INTERFACIAL REACTION BETWEEN A NICKEL BASE SUPERALLOY AND A CERAMIC MATERIAL

CHEN Xiaoyan, ZHOU Yizhou, ZHANG Chaowei, JIN Tao, SUN Xiaofeng

表1 计算所需的热力学参数[24]

Table 1 Thermodynamic parameters used for the calculation[24]

Element (compound) H 298 Θ /(kJ·mol-1) S 298 Θ /(J·mol-1) C p ( T ) = a + b × 10 - 3 T + c × 10 5 T - 2 + d × 10 - 6 T 2 T / K a b c d Hf 0 43.56 23.460 7.623 0 0 298~2013 SiO2 -908.35 43.40 71.626 1.891 -39.058 0 298~2000 HfO2 -1113.2 59.36 72.111 9.050 -12.941 0 298~1973 Si 0 18.82 22.824 8.238 -2.063 0 1685~3492