金属-氢共晶定向凝固热力学模型*

李再久, 金青林, 杨天武, 周荣, 蒋业华

A THERMODYNAMIC MODEL FOR DIRECTIONAL SOLIDIFICATION OF METAL-HYDROGEN EUTECTIC

LI Zaijiu, JIN Qinglin, YANG Tianwu, ZHOU Rong, JIANG Yehua

表1 Cu-H2 系计算参数

Parameter Value Unit Ref. XL 2.183 × 10 - 5 e x p ( - 5.234 × 10 3 T ) ? p H 2 Mole fraction [21] XS 1.379 × 10 - 5 e x p ( - 5.888 × 10 3 T m ) ? p p o r e Mole fraction [21] ML 132200 mol/ m3 [22] Tm 1356 K [22] ph 0.009408 MPa [16] pC 0.004720 MPa [13] DH 10.92 × 10 - 7 e x p ( - 2148 R T m ) m2/ s [23] R 8.314 J/(mol·K) [20] ss/g 1.75 J/m2 [24] k 0.35 [20]