Rapid fabrication and phase transition of Nd and Ce co-doped Gd2Zr2O7 ceramics by SPS

被引：39
作者：
Wang, Lan [1 ]
Shu, Xiaoyan [1 ]
Yi, Facheng [1 ]
Shao, Dadong [2 ]
Zhang, Kuibao [1 ]
Zhang, Haibin [3 ]
Lu, Xirui [1 ]
机构：
[1] Southwest Univ Sci & Technol, Fundamental Sci Nucl Wastes & Environm Safety Lab, Mianyang 621010, Peoples R China
[2] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
[3] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2018年 / 38卷 / 07期
基金：
中国国家自然科学基金;
关键词：
SPS; Rapid sintering; Co-doping; Nuclear waste forms; SPECTROSCOPIC INVESTIGATIONS; PYROCHLORE; IMMOBILIZATION; CONDUCTIVITY; EVOLUTION; DISORDER; GD;
D O I：
10.1016/j.jeurceramsoc.2018.02.024
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：
A series of Nd and Ce co-doped Gd2-xNdxZr2-yCeyO7 (0.0 <= x, y <= 2.0) ceramics were rapidly fabricated through spark plasma sintering (SPS) within 3 min. The effects of Nd and Ce contents on the phase composition, lattice parameter, active modes, microtopography and microstructure have been investigated in detail. XRD studies reveal that the compositions corresponding to 0.0 <= y <= 1.0 show a single phase and beyond 1.0 exhibit multiphase. The lattice parameters increase with elevated Nd and Ce content. The grains are densely packed on each other with cube-like shape, and the elements are almost homogeneously distributed in the compound. This synthetic method provides a simple pathway for the preparation of highly densified single phase ceramic at 1600-1700 degrees C for 3 min under pressure of 80 MPa.
引用
收藏
页码：2863 / 2870
页数：8
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