B添加对MoSi2 基化合物抗氧化性能影响的第一性原理研究
陈郑, 宇文佩, 温思涵, 李美凤, 沙江波, 周春根

First Principles Study on Effect of B Addition on Oxidation Resistance of MoSi2-based Compound
CHEN Zheng, YUWEN Pei, WEN Sihan, LI Meifeng, SHA Jiangbo, ZHOU Chungen
表2 O、Si和B在不同 B含量的硼硅酸盐中的扩散系数 (m2/s)
Table 2 Diffusion coefficients of O, Si and B in various borosilicates containing different contents of B

Diffusivity

coefficient

Amorphous SiO22%B- borosilicate4%B- borosilicate6%B- borosilicate8%B- borosilicate10%B- borosilicate
O17.987 × 10-817.683 × 10-817.062 × 10-814.192 × 10-816.085 × 10-817.346 × 10-8
Si5.162 × 10-85.659 × 10-86.440 × 10-86.672 × 10-85.126 × 10-84.923 × 10-8
B-10.800 × 10-813.568 × 10-812.699 × 10-814.151 × 10-811.115 × 10-8