Structural transformation in two yttrium oxide powders irradiated with swift molybdenum ions

被引：12

作者：

Hémon, S

Dufour, C ^{[1
]}

Berthelot, A

Gourbilleau, F

Paumier, E

Bégin-Collin, S

机构：

[1] LERMAT, Unite CNRS Associee 6004, F-14050 Caen, France

[2] CEA, CNRS, Lab Commun, CIRIL, F-14070 Caen 5, France

[3] Ecole Mines, URA CNRS 159, LSGMM, F-54042 Nancy, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 166卷

关键词：

heavy ions; irradiation effects; powder X-ray diffraction; phase transition;

D O I：

10.1016/S0168-583X(99)00693-X

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Swift molybdenum ions induce a structural transformation in Y2O3 powders: the normal cubic phase is changed into the monoclinic phase. In this paper, it is shown that the initial crystallite size distribution in the grains has an influence on the efficiency of the phase transformation: the smaller the crystallites, the easier the cubic to monoclinic phase transformation. A mechanism is then proposed in order to explain the behaviour of two kinds of Y2O3 powders differing by their crystallite size distribution. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：339 / 344

页数：6

共 6 条

[1] INFLUENCE OF THE NATURE OF MILLING MEDIA ON PHASE-TRANSFORMATIONS INDUCED BY GRINDING IN SOME OXIDES [J].