论文标题
在氢气中，孔中孔的扩散演变
Diffusion evolution of a pore in bounded particle in a hydrogen atmosphere
论文作者
论文摘要
在氢培养基中的球形颗粒中填充分子氢的孔扩散进化的问题是解决的。孔的初始位置相对于颗粒的中心位移。获得了一个非线性方程系统，该系统描述了充满气体孔的大小的行为，其中的气体量及其位置相对于有限粒子的中心随时间而言。数值计算表明存在两个进化阶段。第一个（快速）阶段与孔中压力的均衡与外部。第二个是孔的缓慢扩散“愈合”，当气体量调节到其尺寸并且气压大约等于外部时。
The problem of the diffusion evolution of a pore filled with molecular hydrogen in a spherical granule in a hydrogen medium is solved. The initial position of the pore is displaced relative to the center of the granule. A nonlinear system of equations is obtained, which describes the behavior of the size of the gas-filled pore, the amount of gas in it and its position relative to the center of the bounded particle with time. Numerical calculations have shown the existence of two stages of evolution. The first (fast) stage is associated with the equalization of pressure in the pore with the external. The second is the slow diffusion "healing" of the pore, when the amount of gas adjusts to its size and the gas pressure is approximately equal to the external.
