期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 33, 期 15-16, 页码 3273-3285出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2013.05.011
关键词
Gadolinium zirconate; Neodymium zirconate; Pyrochlore; Soft chemical synthesis; Solid-state structure
Pyrochlore structured Gd2Zr2O7 and Nd2Zr2O7 are produced via complex precipitation processing. A suite of characterization techniques, including FTIR, Raman, X-ray and electron diffraction, TEM, SEM as well as nitrogen sorption are employed to investigate the structural and grain size evolution of the synthesized and calcined powder. Results show that Gd2Zr2O7 with the pyrochlore structure are produced after calcination at 1400 degrees C for 12h while Nd2Zr2O7 has already formed the pyrochlore structure at 1200 degrees C. This method allows the formation of dense materials at relatively low temperature, with bulk densities over 92% of the theoretical values achieved after sintering at 1400 degrees C for 50 h. This unique aqueous synthetic method provides a simple pathway to produce pyrochlore lanthanide zirconate without using either organic solvent and/or mechanical milling procedures, making the synthesis protocol an attractive potential scale-up production of highly refractory ceramics. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据