self-diffusion

self-diffusion

简明

n.[物] 自扩散；自我扩散；自扩散作用

网络释义
专业释义
英英释义

短语

1
self diffusion coefficient
自扩散系数
2
self diffusion current
自扩散流
3
self diffusion velocity
自扩散速度

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双语例句

1
The creep deformation is controlled by dislocation climb resulting from lattice self-diffusion.
该合金的蠕变由晶格自扩散引起的位错攀移所控制。
2
The new associating hard sphere chain equation combined the hard sphere chain model (HSC) of self-diffusion coefficient with the statistical associating fluid theory (SAFT).
将链式硬球模型自扩散系数方程与统计缔合流体理论(SAFT)相结合起来。
3
The increment of Ti-Al sheets porosity is 21%32%, and the prime reasons are considered to be the existence of the porosity in sheet bars and Al self-diffusion in the process of reactive synthesis.
烧结坯孔隙度大幅度增加，增加量为21% 32%。原板坯中的孔隙及偏扩散是造成烧结坯孔隙的主要原因。

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百科

Self-diffusion
According to IUPAC definition, self-diffusion coefficient is the diffusion coefficient of species when the chemical potential gradient equals zero. It is linked to the diffusion coefficient by the equation:Here, is the activity of the species in the solution and is the concentration of . This term is commonly assumed to be equal to the tracer diffusion determined by watching the movement of an isotope in the material of interest.

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