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Acta Metall Sin  1956, Vol. 1 Issue (2): 189-200    DOI:
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RATE OF ORDERING AT CONSTANT TEMPERATURE OF AuCu_3
SZE SHIH-YUAN Nanking University
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SZE SHIH-YUAN Nanking University. RATE OF ORDERING AT CONSTANT TEMPERATURE OF AuCu_3. Acta Metall Sin, 1956, 1(2): 189-200.

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Abstract  The rate of growth of ordered domains in AuCu_3 has been measured by ob-serving the rate of change of integral breadth of superlattice Debye-Scherrer lines.The result of experiment shows that in the temperature range of 350° to 370℃the rate of growth lies between 2.37×10~(-11)cm/sec to 16.8×10~(-11)cm/sec.Thelinear dimension of ordering domain is in the range of 15(?) to 300(?).Activationenergy of ordering is found to be 41600 cal./g.mole.It changes slightly with tem-perature.The activation energy,of ordering does not equal to the activationenergy of diffusion.It lies between the activation energy of diffusion of gold incopper and the activation energy of self diffusion of copper in copper.
Received:  18 February 1956     
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