CAJ | 학술논문

Ca1-XBaXZr4(PO4)6（0X1.0，简称CBZP）属于NZP族磷酸盐陶瓷材料，它是新的一类低热膨胀陶瓷材料。本文采用共沉淀法合成了CBZP超细粉体，研究了共沉淀法反应机理和粉体分散性并对粉体进行了热重－差热分析及X射线衍射分析。实验结果表明，反应过程的pH应控制在7～11之间，共沉淀物用乙醇进行分散后，可得到粒径为1.6～1.8μm、分布均匀、无硬团聚体的CBZP超细粉体；煅烧后所得到的超细粉体具有确定的晶型。
Ca1-XBaXZr4(PO4)6（0X1.0，간칭CBZP）속우NZP족린산염도자재료，타시신적일류저열팽창도자재료。본문채용공침정법합성료CBZP초세분체，연구료공침정법반응궤리화분체분산성병대분체진행료열중－차열분석급X사선연사분석。실험결과표명，반응과정적pH응공제재7～11지간，공침정물용을순진행분산후，가득도립경위1.6～1.8μm、분포균균、무경단취체적CBZP초세분체；단소후소득도적초세분체구유학정적정형。
Ca1-XBaXZr4(PO4)6（0X1.0）system belongs to a new large family of low thermal expansion materials known as NZP. This paper synthesizes the ultra-fine powder of CBZP by coprecipitation method. The conditions of the synthesizing reaction, the mechanism of the coprecipitation, and the method of dispersion have been investigated. The powders were analyzed by TGA-DTA and X-ray diffraction. The results of this paper show that the pH value of reaction should be between 7 and 11, and after the copreciptaters are dispersed by ethanol, the average size of powders ranging from 1.6 to 1.8(m have been produced with narrow size distribution, and without agglomeration. An X-ray diffraction analysis indicates that the powders after being sintered have definite crystal form.