Preparation and microstructural characterization of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions

Zhan Guo Liu; Jia Hu Ouyang; Yu Zhou; Xiao Liang Xia

doi:10.1016/j.ceramint.2009.02.009

Preparation and microstructural characterization of (Nd_1-xGd_x)₂(Ce_1-xZr_x)₂O₇ solid solutions

Zhan Guo Liu
, Jia Hu Ouyang^*
, Yu Zhou
, Xiao Liang Xia

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

(Nd_1-xGd_x)₂(Ce_1-xZr_x)₂O₇ (0 ≤ x ≤ 1.0) powders with an average particle size of 100 nm were synthesized with chemical-coprecipitation and calcination method, and were characterized by X-ray diffractometry and scanning electron microscopy. The sintering behaviour of (Nd_1-xGd_x)₂(Ce_1-xZr_x)₂O₇ powders was studied by pressureless sintering at 1600-1700 °C for 10 h in air. The relative densities of (Nd_1-xGd_x)₂(Ce_1-xZr_x)₂O₇ solid solutions increase with increasing the sintering temperature, and gradually decrease with increasing the content of neodymium and cerium at identical temperature levels. (Nd_1-xGd_x)₂(Ce_1-xZr_x)₂O₇ solid solutions have a single phase of defect fluorite-type structure among all the composition combinations studied. The lattice parameters of (Nd_1-xGd_x)₂(Ce_1-xZr_x)₂O₇ solid solutions agree well with the Vegard's rule.

Original language	English
Pages (from-to)	2387-2392
Number of pages	6
Journal	Ceramics International
Volume	35
Issue number	6
DOIs	https://doi.org/10.1016/j.ceramint.2009.02.009
State	Published - Aug 2009

Keywords

A. Powders: chemical preparation
A. Sintering
B. Microstructure-final
Ceramics

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10.1016/j.ceramint.2009.02.009

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title = "Preparation and microstructural characterization of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions",

abstract = "(Nd1-xGdx)2(Ce1-xZrx)2O7 (0 ≤ x ≤ 1.0) powders with an average particle size of 100 nm were synthesized with chemical-coprecipitation and calcination method, and were characterized by X-ray diffractometry and scanning electron microscopy. The sintering behaviour of (Nd1-xGdx)2(Ce1-xZrx)2O7 powders was studied by pressureless sintering at 1600-1700 °C for 10 h in air. The relative densities of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions increase with increasing the sintering temperature, and gradually decrease with increasing the content of neodymium and cerium at identical temperature levels. (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions have a single phase of defect fluorite-type structure among all the composition combinations studied. The lattice parameters of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions agree well with the Vegard's rule.",

keywords = "A. Powders: chemical preparation, A. Sintering, B. Microstructure-final, Ceramics",

author = "Liu, \{Zhan Guo\} and Ouyang, \{Jia Hu\} and Yu Zhou and Xia, \{Xiao Liang\}",

year = "2009",

month = aug,

doi = "10.1016/j.ceramint.2009.02.009",

language = "英语",

volume = "35",

pages = "2387--2392",

journal = "Ceramics International",

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T1 - Preparation and microstructural characterization of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions

AU - Liu, Zhan Guo

AU - Ouyang, Jia Hu

AU - Zhou, Yu

AU - Xia, Xiao Liang

PY - 2009/8

Y1 - 2009/8

N2 - (Nd1-xGdx)2(Ce1-xZrx)2O7 (0 ≤ x ≤ 1.0) powders with an average particle size of 100 nm were synthesized with chemical-coprecipitation and calcination method, and were characterized by X-ray diffractometry and scanning electron microscopy. The sintering behaviour of (Nd1-xGdx)2(Ce1-xZrx)2O7 powders was studied by pressureless sintering at 1600-1700 °C for 10 h in air. The relative densities of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions increase with increasing the sintering temperature, and gradually decrease with increasing the content of neodymium and cerium at identical temperature levels. (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions have a single phase of defect fluorite-type structure among all the composition combinations studied. The lattice parameters of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions agree well with the Vegard's rule.

AB - (Nd1-xGdx)2(Ce1-xZrx)2O7 (0 ≤ x ≤ 1.0) powders with an average particle size of 100 nm were synthesized with chemical-coprecipitation and calcination method, and were characterized by X-ray diffractometry and scanning electron microscopy. The sintering behaviour of (Nd1-xGdx)2(Ce1-xZrx)2O7 powders was studied by pressureless sintering at 1600-1700 °C for 10 h in air. The relative densities of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions increase with increasing the sintering temperature, and gradually decrease with increasing the content of neodymium and cerium at identical temperature levels. (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions have a single phase of defect fluorite-type structure among all the composition combinations studied. The lattice parameters of (Nd1-xGdx)2(Ce1-xZrx)2O7 solid solutions agree well with the Vegard's rule.

KW - A. Powders: chemical preparation

KW - A. Sintering

KW - B. Microstructure-final

KW - Ceramics

UR - https://www.scopus.com/pages/publications/67349092241

U2 - 10.1016/j.ceramint.2009.02.009

DO - 10.1016/j.ceramint.2009.02.009

M3 - 文章

AN - SCOPUS:67349092241

SN - 0272-8842

VL - 35

SP - 2387

EP - 2392

JO - Ceramics International

JF - Ceramics International

IS - 6

ER -

Preparation and microstructural characterization of (Nd_1-xGd_x)₂(Ce_1-xZr_x)₂O₇ solid solutions

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Keywords

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