金属学报  1956, Vol. 1 Issue (2): 189-200

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恒温有序化转变的时率

施士元

南京大学

RATE OF ORDERING AT CONSTANT TEMPERATURE OF AuCu_3

SZE SHIH-YUAN Nanking University

施士元. 恒温有序化转变的时率[J]. 金属学报, 1956, 1(2): 189-200.
. RATE OF ORDERING AT CONSTANT TEMPERATURE OF AuCu_3[J]. Acta Metall Sin, 1956, 1(2): 189-200.

摘要 参考文献 相关文章 Metrics 全文: PDF(883 KB)   摘要: 本文中叙述一个简单的计算AuCu_3中有序畴长大时率的公式及利用超点阵线的变宽度随保温时间的改变测定恒温有序畴长大的实验。实验结果表示在350°至370℃之间有序畴长大的时率介于2.37×10~(-11)—16.8×10~(-11)厘米/秒之间。有序畴的线度大小介于十几个埃至300埃之间。从有序畴长大的时率可以计算出有序化的激活能。计算的结果表示有序化激活能为41600卡/克分子。温度上升,激活能稍有减少的倾向。有序化激活能并不就等于扩散激活能。它是介于金在铜中的扩散激活能和铜在铜中自扩散激活能之间。 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. 收稿日期: 1956-02-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 施士元 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1956/V1/I2/189 [1] 施士元,张国焕,物理学报12(1956) ,80页. [2] 关于有序无序问题的理论,参看Barrett,C.S.,Structure of Metals,1953,p.269-296的很详细的文献目录. [3] Rhines,F.N.,Bond,W.E and Rummel,R.A.,AIME,47(1955) ,578． [4] Rhines,F.N.and Newkirk,J.B.,Trans.Amer.Soc.Met.,194(1952) ,1029． [5] Kuczynski,G.C.,Hockman,R.F.and Doyama M.J.App.Phys.,206(1955) ,No.7,871． [6] Owen,E.A.and G.Mac.Sim.,Phil.Mag.,38(1947) ,342． [7] Jones,F.W.and Sykes,C.,Proc.Roy.Soc.A.166,376(1938) . [8] Sykes & Jones,Proc.Roy.Soc.A.157,213(1936) . [9] #12 [10] #12 [11] Fowler & Guggenheim,Statistical Thermodynamics,p.600(1939) . [12] Stokes,A.R.and Wilson,A.J.C.,Proc.Camb Phil.Soc.,38(1942) ,313． [13] #12 [14] Stokes,A.R.and Wilson,A.J.C.,Proc.Phys.Soc.,56(1944) ,174． [15] #12 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed