Effect of Starting Powders on the Sintering Behavior and Microstructure of Sr0.4Ba0.6Nb2O6 Ceramics

Abstract

Abstract: The sintering behaviors and microstructures of reaction-sintered Sr_0.4Ba_0.6Nb₂O₆
(RSBN40) using mixture of SrNb₂O₆ and BaNb₂O₆ as the starting powders were compared with that of normal sintered Sr_0.4Ba_0.6Nb₂O₆
(SBN40) with single-phase Sr_0.4Ba_0.6Nb₂O₆ powders as starting powders. The experimental results show that the densification rate
of SBN40 is faster than that of RSBN40. Densities of samples SBN40 and RSBN40 reach the maximum, 5.21 and 5.27g·cm^-3 at 1250 and 1300℃,
respectively. In addition, abnormal grain growth occurs more easily in sample SBN40 than in sample RSBN40 at the sintering temperatures above 1300℃.

Key words: SrxBa_1-xNb₂O₆, sintering behavior, microstructure

CLC Number:

TQ174

HUANG Qing-Wei,WANG Pei-Ling,CHENG Yi-Bing,YAN Dong-Sheng. Effect of Starting Powders on the Sintering Behavior and Microstructure of Sr_0.4Ba_0.6Nb₂O₆ Ceramics[J]. Journal of Inorganic Materials.

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Effect of Starting Powders on the Sintering Behavior and Microstructure of Sr_0.4Ba_0.6Nb₂O₆ Ceramics

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