原位成形矿化剂辅助下低温合成NaSICON NaZr2(PO4)3粉体

IF 0.9 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI:10.2298/pac2302140w

Tao Wang, Jianmin Liu, Feng Jiang, Guo Feng, Jianye Liang, L. Miao, Qian Wu, Xinbin Lao, Mengting Liu, Weihui Jiang

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引用次数: 0

摘要

研究了在330℃低温下制备NaZr2(PO4)3 (NZP)粉体的新方法。不同摩尔比ZrO(NO3)2 ?xH2O变成NaH2PO4 ?采用XRD、FE-SEM、TEM、EDS和拉曼光谱等方法系统研究了2H2O对NZP粉体合成的影响。矿化剂NaNO3是由原料ZrO(NO3)2 ?xH2O和NaH2PO4 ?在研磨过程中加入2H2O。采用Zr:P = 2:6的最佳摩尔比，可制得结晶度高、分散性好、粒径在500 ~ 700 nm范围内的NZP粉体。以2 wt.%的ZnO为助烧剂，在1100℃下烧结3 h，制得致密的NZP陶瓷。烧结陶瓷的相对密度和维氏硬度分别达到93.4%和704MPa。

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Low temperature synthesis of NaSICON NaZr2(PO4)3 powders with the assistance of in situ formed mineralizer

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.

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来源期刊

Processing and Application of Ceramics MATERIALS SCIENCE, CERAMICS-

CiteScore

1.90

自引率

9.10%

发文量

审稿时长

10 weeks

期刊介绍： Information not localized