Low temperature synthesis of NaSICON NaZr2(PO4)3 powders with the assistance of in situ formed mineralizer
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Published:2023
Issue:2
Volume:17
Page:140-148
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ISSN:1820-6131
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Container-title:Processing and Application of Ceramics
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language:en
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Short-container-title:PAC
Author:
Wang Tao1, Liu Jianmin2, Jiang Feng2, Feng Guo2, Liang Jian2, Miao Lifeng2, Wu Qian2, Lao Xinbin2, Liu Mengting1, Jiang Weihui3
Affiliation:
1. School of Material Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, China 2. National Engineering Research Center for Domestic and Building Ceramics, Jingdezhen, Jiangxi, China 3. School of Material Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, China + National Engineering Research Center for Domestic and Building Ceramics, Jingdezhen, Jiangxi, China
Abstract
A new approach was developed to prepare NaZr2(PO4)3 (NZP) powders at low
temperature of 330?C. The effect of different molar ratios of ZrO(NO3)2 ?
xH2O to NaH2PO4 ? 2H2O on the synthesis of NZP powders was systematically
investigated by XRD, FE-SEM, TEM, EDS and Raman spectroscopy. The
mineralizer NaNO3 was formed in situ due to the mechanochemical reaction
between raw materials ZrO(NO3)2 ? xH2O and NaH2PO4 ? 2H2O during the
grinding process. When the optimal molar ratio of Zr:P = 2:6 was used, the
NZP powders with high crystallinity, good dispersity and particle sizes in
the range of 500-700 nm were obtained. The dense NZP ceramics was obtained
by sintering at 1100 ?C for 3 h with 2 wt.% ZnO as the sintering aid. The
relative density and Vickers hardness of the sintered ceramics reached 93.4%
and 704MPa, respectively.
Publisher
National Library of Serbia
Subject
Ceramics and Composites
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