Effect of complex Si4++Mg2+ additive on sintering and properties of undoped YAG ceramics

被引：10

作者：

Vorona, I. O. ^{[1
]}

Yavetskiy, R. P. ^{[1
]}

Parkhomenko, S. V. ^{[1
]}

Doroshenko, A. G. ^{[1
]}

Kryzhanovska, O. S. ^{[1
]}

Safronova, N. A. ^{[1
]}

Timoshenko, A. D. ^{[1
]}

Balabanov, A. E. ^{[1
]}

Tolmachev, A. V. ^{[1
]}

Baumer, V. N. ^{[2
]}

机构：

[1] NAS Ukraine, Inst Single Crystals, 60 Nauky Ave, UA-61072 Kharkiv, Ukraine

[2] NAS Ukraine, SSI Inst Single Crystals, 60 Nauky Ave, UA-61072 Kharkiv, Ukraine

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2022年 / 42卷 / 13期

关键词：

Transparentceramics; YAG; si(4+); mg(2+); Sintering aids; OPTICAL-PROPERTIES; TRANSPARENT; MICROSTRUCTURE; FABRICATION; DENSIFICATION; SIO2; MGO;

D O I：

10.1016/j.jeurceramsoc.2022.05.017

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：

The paper is devoted to studying of Si4++Mg2+ complex additive for obtaining transparent YAG ceramics for laser applications. Ceramics were fabricated by reactive vacuum sintering of commercial Y2O3, Al2O3 powders taken in a stoichiometric mixture with TEOS and MgO as sintering aids. Microstructure and optical properties of YAG:Si4+,Mg2+ ceramics were investigated as a function of the Si4+/Mg2+ ratio. It was found that the influence of complex additive does not correspond to the direct superposition of known Si4+- and Mg2+-induced sintering mechanisms and involves interaction between Si4+ and Mg2+ ions during sintering. It was shown that CSi/CMg> 1 provides more effective pore elimination and uniform microstructure when CSi/CMg< 1 gives more intense inhibition of grain grown which may be important for scaling the size of ceramics.

引用

页码：6104 / 6109

页数：6

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