Design of solid/liquid–liquid/solid trilayer systems for the measurement of diffusion coefficients in liquid metals

Zhao, J. H. ; Liu, R. P. ; Zhang, M. ; Zhou, Z. H. ; Zhang, X. Y. ; Cao, L. M. ; Dai, D. Y. ; Xu, Y. F. ; Wang, W. K.

[S.l.] : American Institute of Physics (AIP)
Published 1998
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
Electrical Engineering, Measurement and Control Technology
Notes:
A new method for investigation of diffusion processes in liquid metals with solid/liquid–liquid/solid trilayer systems is described. The design of this kind of trilayers enables diffusion processes with no effects from gravity-induced convection and Maragoni-convection conditions. The Ta/Zn–Sn/Si trilayers were prepared and the interdiffusion of liquid zinc and tin at 500 °C was investigated. The interdiffusion coefficients range from 1.0×10−4 to 2.8×10−4 mm2/s, which are less than previous values measured by capillary reservoir technique under 1 g environment where various kinds of convection exist. It is the removing of disturbances of these kinds of convection that brings about the precise interdiffusion coefficients in liquid metals. © 1998 American Institute of Physics.
Type of Medium:
Electronic Resource
URL: