Low temperature synthesis of NaSICON NaZr2(PO4)3 powders with the assistance of in situ formed mineralizer
Low temperature synthesis of NaSICON NaZr2(PO4)3 powders with the assistance of in situ formed mineralizer
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DOI：
10.2298/pac2302140w
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发表时间：
2023
影响因子：
1.1
通讯作者：
Tao Wang;Jianmin Liu;Feng Jiang;Guo Feng;Jianye Liang;L. Miao;Qian Wu;Xinbin Lao;Mengting Liu
中科院分区：
文献类型：
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作者：
Tao Wang;Jianmin Liu;Feng Jiang;Guo Feng;Jianye Liang;L. Miao;Qian Wu;Xinbin Lao;Mengting Liu
提出了一种在330 ℃低温下制备NaZr 2（PO 4）3（NZP）粉体的新方法。C.不同摩尔比的ZrO（NO3）2？xH 2 O到NaH 2 PO 4？采用XRD、FE-SEM、TEM、EDS和拉曼光谱等手段系统研究了NZP粉体的合成过程。矿化剂NaNO 3是原料ZrO（NO3）2？xH 2 O和NaH 2 PO 4？2 H2O在研磨过程中。当Zr：P = 2：6时，可得到结晶度高、分散性好、粒径在500-700 nm范围内的NZP粉体。在1100 ℃烧结得到致密的NZP陶瓷。C下搅拌3小时，加入2重量% ZnO作为烧结助剂。烧结陶瓷的致密度和维氏硬度分别达到93.4%和704 MPa。
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.