金属学报  1984, Vol. 20 Issue (6): 465-470

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对压力下结晶形核率的理论计算

齐丕骧

内蒙古金属材料研究所

AN EXPRESSION FOR NUCLEATION RATE OF CRYSTALLIZATION UNDER PRESSURE

QI Pixiang (Nei Monggol Institute of Metallic Materials; Baotou) (Manuscript received 8 November; 1982; revised manuscript 31 March; 1984)

齐丕骧. 对压力下结晶形核率的理论计算[J]. 金属学报, 1984, 20(6): 465-470.
. AN EXPRESSION FOR NUCLEATION RATE OF CRYSTALLIZATION UNDER PRESSURE[J]. Acta Metall Sin, 1984, 20(6): 465-470.

摘要 参考文献 相关文章 Metrics 全文: PDF(367 KB)   摘要: 本文建立了均质形核条件下压力与温度对形核率影响的数学方程,用此方程计算了Betol压力下结晶的形核数。得出在压力不变条件下,形核率-温度曲线出现一峰值,增加压力此峰值向高温方向移动。对于结晶时体积收缩的晶体物质,在温度不变的条件下,形核率-压力曲线也出现峰值,温度升高此峰值向高压方向移动。 Abstract：An attempt was made of deriving an expression for the effects of pressure and temperature on the nucleation rate under the homogeneous crystalline condition, and thereafter numbers of the Betol's crystal nuclei were calculated. The resuits were shown that a peak value may be noticed on the plot of the nucleation rate vs temperature under the condition of constant pressure, and it may shift to the direction of elevated temperature with the increasing of pressure. For substances crystallized with volume shrinkage, a similar peak value may also be presented on the nucleation rate vs pressure plot under constant temperature, and it may shift to the higher pressure with temperature increased. 收稿日期: 1984-06-18      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 齐丕骧 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1984/V20/I6/465 1 #12 2 西田義则;松原弘美;白柳格;鈴木鎮夫,日本金属学会会報,19(1980) ,895． 3 Davies, G. J., Solidification and Casting, Applied Science Publ. London, 1973, p.18． 4 Yoshinori Nishida; Hiromi Matsubara, Z. Metallk., 71 (1980) , №3, 193． 5#12 6 #12 7 Robert, C. W., CRC Handbook of Chemistry and Physics, CRC Press, Cleveland Ohio, 1977-1978, 58th ed. p. C-192． 8#12 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed