Morphology and luminescence of MgAl2O4 ceramics obtained via spark plasma sintering

被引：13

作者：

Pille, Annika ^{[1
]}

Spiridigliozzi, Hugo ^{[1
]}

Amamra, Mohamed ^{[1
]}

Billeton, Thierry ^{[2
]}

Zaghrioui, Mustapha ^{[3
]}

Feldbach, Eduard ^{[4
]}

Kanaev, Andrei ^{[1
]}

Schoenstein, Frederic ^{[1
]}

机构：

[1] Univ Paris 13, Sorbonne Paris Cite, Lab Sci Procedes & Mat, CNRS UPR 3407, F-93430 Villetaneuse, France

[2] Univ Paris 13, Sorbonne Paris Cite, Lab Phys Lasers, CNRS UMR 7538, F-93430 Villetaneuse, France

[3] Univ Tours, Lab GREMAN, CNRS INSA CVL UMR 7347, IUT BLOIS,CS 32903, 15 Rue Chocolaterie, F-41029 Blois, France

[4] Univ Tartu, Inst Phys, W Ostwaldi Str 1, EE-50411 Tartu, Estonia

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 07期

关键词：

Sintering; Microstructure-final; Optical properties; Spinels; Luminescence; TRANSPARENT CERAMICS; SPINEL; MICROSTRUCTURE; EXCITATIONS; FABRICATION;

D O I：

10.1016/j.ceramint.2019.01.137

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Spark plasma sintering cycles were applied to a commercial magnesium aluminate spinel powder to evaluate its suitability for producing small-grained optical ceramics. Translucent stoichiometric samples with a crystalline grain size as small as similar to 0.5 mu m were obtained. Structural, microstructural (XRD and SEM), and correlated spectroscopic (transmission and cathodoluminescence) analyses were used to further investigate the defect structure and inversion degree of the material. We argue that the transparency is closely related to F and F+ centers, which can be distinguished in the absorption and luminescence spectra of the stoichiometric compositions.

引用

页码：8305 / 8312

页数：8

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