Powder Characteristics of Pb(Mg1/3Nb2/3)O3 Prepared by Molten Salt Synthesis
Powder Characteristics of Pb(Mg1/3Nb2/3)O3 Prepared by Molten Salt Synthesis
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DOI：
10.1111/j.1151-2916.1993.tb03770.x
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发表时间：
1993-05
影响因子：
3.9
通讯作者：
K. Yoon;Y. Cho;Dongheon Lee;D. Kang
中科院分区：
文献类型：
--
作者：
K. Yoon;Y. Cho;Dongheon Lee;D. Kang
采用熔盐法合成了铌酸镁铅（Pb（Mg 1/3 Nb 2/3）O3，PMN）。粉末的特性受到加工参数的很大影响，如盐的量、盐的种类和过量PbO的存在。生长在硫酸盐中，PMN微晶表现出多面形态与双峰粒度分布，其中较小的颗粒在亚微米范围内。硫酸盐中过量PbO的存在极大地影响了多面形态，并导致圆形PMN微晶。颗粒形态的变化，由于工艺参数的可能起源进行了讨论。
Lead magnesium niobate (Pb(Mg1/3Nb2/3)O3, PMN) was prepared by a molten salt synthesis method. Powder characteristics were greatly influenced by the processing parameters, such as amount of salt, species of salt, and the presence of excess PbO. Grown in sulfate salts, PMN crystallites showed faceted morphology with a bimodal particle-size distribution in which the smaller particles were in the submicrometer range. The presence of excess PbO in the sulfate salts greatly influenced the faceted morphology and resulted in rounded PMN crystallites. The possible origin of particle morphology changes due to the processing parameters is discussed.