摘要
本文报道了水热条件下制备的ＰＺＴ纳米晶体微粉结构和热效应分析的研究结果。认为ＰＺＴ纳米晶体中晶粒尺寸为１２～１４ｎｍ，ＰＺＴ纳米晶体微粉粒度１３０ｎｍ左右，产生最显著的热效应和热失重时的温度分别为８１１．２６℃和９２４．７１℃；用传统固相法制备的ＰＺＴ微粉产生最显著的热效应和热失重时的温度分别为１２４３．４７℃和１２１３．２９℃。这对有效地降低ＰＺＴ陶瓷材料的烧结温度和有效防止ＰｂＯ的挥发有重要意义。
The results of analysis for the structure and thermal effect of PZT nanocrystal powders prepared by hydrothermal method are reported in this paper.It is found that the size of grains which consist of the nanocrystal powders is 12 to 14nm and the particles size of PZT nanocrystal powders is about 130nm.The temperatures at which the nanocrystal thermal reaction and thermal weightlessness occured appreciabl are 811.26℃ and 924.71℃ respectively.The temperatures for micropowders made by traditional solid method are 1243.47℃ and 1213.29℃ respectively.Therefore this study could be of great importance to lower the sintered temperature of PZT ceramics and reduce the volatilization of PbO.
出处
《功能材料》
EI
CAS
CSCD
北大核心
1997年第3期324-327,共4页
Journal of Functional Materials
基金
陕西省自然科学基金
