Phase evolution of yttrium aluminium garnet (YAG) in a citrate-nitrate gel combustion process

被引：35

作者：

Guo, XZ ^{[1
]}

Devi, PS

Ravi, BG

Parise, JB

Sampath, S

Hanson, JC

机构：

[1] SUNY Stony Brook, Dept Mat Sci & Engn, Ctr Thermal Spray Res, Stony Brook, NY 11794 USA

[2] Cent Glass & Ceram Res Inst, Electroceram Div, Kolkata 700032, W Bengal, India

[3] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA

[4] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA

[5] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2004年 / 14卷 / 08期

关键词：

D O I：

10.1039/b316434a

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：

Yttrium aluminium garnet (YAG) powders were synthesized by a citrate-nitrate gel combustion process. Thermogravimetry (TG), differential thermal analysis (DTA), X-ray powder diffraction (XRD), and time-resolved X-ray powder diffraction experiments were used to study the phase evolution. Formation of the pure YAG phase depends on the level of precursor decomposition in the combustion process. Removal of undecomposed citric acid from the starting precursor powder helps to lower the temperature at which the YAG phase begins to form and the temperature at which the pure, highly crystalline YAG phase is obtained. The value of citrate to nitrate ratio in the precursor gel affects the phase evolution for YAG.

引用

页码：1288 / 1292

页数：5

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