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NUCLEATION AND COARSENING OF Co-RICH α-PHASE IN THE COPPER-COBALT SYSTEM |
LIU Zhiguo;SHEN Guangjun+;CHEN Yong;FENG Duan |
(Laboratory of Solid State Microstructures, Nanjing University, Nanjing )
+(Department of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing)
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Cite this article: |
LIU Zhiguo, SHEN Guangjun+, CHEN Yong et al 1988 Chin. Phys. Lett. 5 537-541 |
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Abstract The kinesics of the early stages of the decomposition reaction in a Cu-1.75at.% Co solid solution aged at 853K were investigated with APFIM (Atom Probe Field Ior Microscopy) and TEM (Transmission Electron Microscopy). The radius of the critical nucleus of α-phase was revealed to be about 0.8nm. The Co-concentration in the fine precipitates was determined to be (95±2)at.%. The results were interpreted in terms of Kampmann-Wagner numerical model for the kinetics of nucleation and growth decomposition in solids.
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Keywords:
6116D
6480V
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Published: 01 December 1988
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