CAJ | 학술논문

采用Cu/Ni/Cu扩散偶研究强磁场对Ni?Cu系原子扩散行为的影响。发现该扩散偶在有、无强磁场条件下退火处理时，Ni?Cu 系原子互扩散过程中的互扩散系数随着互扩散区内 Ni 原子摩尔分数的增加而增加，并且在强磁场条件下退火处理后，所有的互扩散系数均小于相应条件下无磁场处理时的互扩散系数。表明强磁场的施加延迟了Ni?Cu系原子的互扩散行为。分析指出，上述强磁场对原子扩散的延迟行为是通过降低互扩散过程中的频率因子而不是互扩散激活能来实现的。
채용Cu/Ni/Cu확산우연구강자장대Ni?Cu계원자확산행위적영향。발현해확산우재유、무강자장조건하퇴화처리시，Ni?Cu 계원자호확산과정중적호확산계수수착호확산구내 Ni 원자마이분수적증가이증가，병차재강자장조건하퇴화처리후，소유적호확산계수균소우상응조건하무자장처리시적호확산계수。표명강자장적시가연지료Ni?Cu계원자적호확산행위。분석지출，상술강자장대원자확산적연지행위시통과강저호확산과정중적빈솔인자이불시호확산격활능래실현적。
The effect of high magnetic field on the atomic interdiffusion in Ni?Cu system was studied using the Cu/Ni/Cu diffusion couples. During the atomic interdiffusion in Ni?Cu system, it was found that the interdiffusion coefficients increased with the increase of molar fraction of Ni atoms in the interdiffusion zones when the couples were annealed with or without the magnetic field. It was noted that all corresponding interdiffusion coefficients under the magnetic field are smaller than those without the magnetic field. The results demonstrate that the magnetic field retards the atomic interdiffusion in Ni?Cu system. This retardation is achieved through reducing the frequency factors but not changing the interdiffusion activation energies.