INSITU STUDY OF THE DEFECT STRUCTURE OF WUSTITE FE1-XO BY DIFFUSE ELASTIC NEUTRON-SCATTERING

被引：13

作者：

SCHWEIKA, W ^{[1
]}

HOSER, A ^{[1
]}

MARTIN, M ^{[1
]}

机构：

[1] UNIV HANNOVER,INST PHYS CHEM & ELEKTROCHEM,W-3000 HANNOVER,GERMANY

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1992年 / 96卷 / 11期

关键词：

CLUSTERS; DIFFUSE NEUTRON SCATTERING; NONSTOICHIOMETRY; POINT DEFECT STRUCTURE; TRANSITION METAL OXIDES;

D O I：

10.1002/bbpc.19920961105

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In-situ diffuse neutron scattering experiments were carried out to investigate the defect structure of wustite Fe1-xO. The data were collected at various temperatures from room temperature to 1150-degrees-C and at deviations from stoichiometry, x, from 0.05 to 0. 13. Diffuse peaks were found at Q = 2pi/a (1.66, 0, 0) and Q = 2pi/a (0.83, 0.83, 0.83). Within the stability field of wustite the intensity of these diffuse maxima scales with the defect concentration. Neither the 13:4 defect clusters proposed from earlier X-ray experiments, nor a simple vacancy defect with a spherical displacement field (as found in Mn1-xO) are compatible with our observations.

引用

页码：1541 / 1544

页数：4

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