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Reaction Rate of Liquid-Quenchied Water-Floating Alloy

Published online by Cambridge University Press:  15 February 2011

T. Aida  and
Y. Nishi
T. Aida
Affiliation:
Graduate student of materials science, Tokai University, 1117 Hiratsuka, Kanagawa, 259-12, Japan.
Y. Nishi
Affiliation:
Department of materials science, Tokai University, 1117 Hiratsuka, Kanagawa, 259-12, Japan.
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Abstract

We investigate a reaction rate of Mg-Li Al alloy (specific gravity is 0.95) in water. The hydrogen gas is mainly generated as follows : Li + H2O → LiOH + 1/2 H2 ↑. Using the volume of hydrogen gas, the reaction rate is estimated. The apparent activation energy (E) is 4.63 kcal/mol for the early reaction period. It is approximately equal to that of the water diffusion. On the other hand, the E is 9 kcal/mol after the early reaction period at the 2 ml (the volume of hydrogen gas). Furthermore, we succeed to prevent the sample against the reaction by the use of coating paints.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 362: Symposium J – Grain-Size and Mechanical Properties--Fundamentals and Applications , 1994 , 187
Copyright
Copyright © Materials Research Society 1995

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