Synthesis and optical properties of Yb0.6Y1.4O3 transparent ceramics

被引：17

作者：

Mouzon, J. ^{[1
]}

Dujardin, C. ^{[2
]}

Tillement, O. ^{[2
]}

Oden, M. ^{[1
]}

机构：

[1] Lulea Univ Technol, Div Engn Mat, S-97187 Lulea, Sweden

[2] Univ Lyon 1, UMR CNRS 5620, F-69622 Villeurbanne, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 464卷 / 1-2期

关键词：

ceramics; oxide material; sintering; rare-earth alloys and compounds; optical materials;

D O I：

10.1016/j.jallcom.2007.10.005

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：

Transparent yttrium oxide ceramics doped with 30 at.% ytterbium were successfully produced by a combination of pre-sintering and hot isostatic pressing. The influence of the final transparency of different densification states and porosity configurations obtained by varying pre-sintering conditions were investigated by optical and electron microscopy. Our results show that densification prior to the final stage of sintering is necessary to limit final porosity. Samples showing open porosity were found to lead to pore entrapment because of the diffusion of argon inside the glass capsule during hot isostatic pressing. Transmittance measurements showed that the valence charge of the ytterbium ions was 3+ at the end of the process, indicating no effect of reduction when pre-sintering in vacuum was employed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：407 / 411

页数：5

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