中文

Journal of Applied Sciences ›› 1999, Vol. 17 ›› Issue (1): 103-107.

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Study on the Mechanism of Phase Separation of Non-Crystalline Materials

DUAN RENGUAN1, LIANG KAIMING1, GU SHOUREN1, CHEN XUANLING2   

  1. 1. Department of Materials Science and Engineering, Tsinghua University, Beijing 100084;
    2. Liao Ning Construction Engineering School, Liao Yang 111000
  • Received:1997-08-15 Revised:1998-01-25 Online:1999-03-31 Published:1999-03-31

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Abstract: According to the classical theory of linearized spinodal decomposition kinetics and nucleation -growth kinetics, after a series of mathematical calculation, the following results were obtained. When the phase separation began to advance in the field of unstable(spinodal), there was not a regular relation between the size of non-uniform region and the time, but in the field of metastable(nucleation-growth), the square of the size of non -uniform region was in proportion to the time. The rightness of above results was tested by experiments in the related references.

Key words: spinodal decomposition, nucleation-growth, kinetics, phase separation