ACOUSTIC-EMISSION DURING LEACHING OF PR6O11 IN DILUTE ACETIC-ACID

被引：4

作者：

GASGNIER, M ^{[1
]}

DEROUET, J ^{[1
]}

ALBERT, L ^{[1
]}

BEAURY, L ^{[1
]}

CARO, P ^{[1
]}

DESCHAMPS, M ^{[1
]}

机构：

[1] CETIM,F-60304 SENLIS,FRANCE

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1993年 / 107卷 / 01期

关键词：

D O I：

10.1006/jssc.1993.1336

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In the course of the selective dissolution (leaching) of an intermediate praseodymium oxide, Pr6O11, in contact with a dilute acetic acid solution, it is possible to record an ultrasonic acoustic emission. When the chemical reaction is taking place the solid material loses Pr3+ ions to the solution and a residue of PrO2 remains. Over the course of the experiment (nearly 12 hr) various kinds of signals were recorded. The most important and intense response occurred nearly 8 hr after the beginning of the process. The acoustic emission is tentatively explained in terms of the dissolution of parts of the grains with a high amount of Pr3+ ions, and/or discohesion or breaking of inclusions. © 1993 Academic Press, Inc.

引用

页码：179 / 185

页数：7

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