Chemical diffusion experiments in AlNiCe-Melts

被引：19
作者：
Griesche, A
Moreno, FG
Macht, MP
Frohberg, G
机构：
[1] Hahn Meitner Inst Berlin GmbH, Dept Mat, D-14109 Berlin, Germany
[2] Tech Univ Berlin, Inst Mat Sci & Technol, D-10623 Berlin, Germany
来源：
SOLIDIFICATION AND GRAVITY IV | 2006年 / 508卷
关键词：
diffusion; convection; melt; Aluminum; Nickel; Cerium; in-situ; x-ray; radioscopy;
D O I：
10.4028/www.scientific.net/MSF.508.567
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The long-capillary method was used to measure chemical diffusion in molten AlNiCe alloys. The interdiffusion coefficients were determined for a mean concentration of Al87Ni10Ce3 at 1273 K and for a mean concentration of Al77Ni20Ce3 at 1373 K. The absence of major convection disturbances and of macro-segregation was demonstrated by time-dependent diffusion measurements. An in-situ x-ray monitoring technique for real-time concentration profile determination is presented.
引用
收藏
页码：567 / 572
页数：6
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