XRD Analysis for the Formation of Sr0.4Ba0.6Nb2O6 Phase

Abstract

Abstract: The phase assembles of Sr_0.4Ba_0.6Nb₂O₆ (SBN40) starting powder mixture calcined
at different temperatures were identified by X-ray Guinier-Hagg camera film data and the unit cell dimensions of strontium barium niobate
(SBN) developed at different temperatures were calculated by using PIRUM program. It was found that four intermediate phases, i.e.,
Na₅Nb₄O₁₅, Sr₅Nb₄O₁₅, SrNb₂O₆ and BaNb₂O₆ were developed during the formation of Sr_0.4Ba_0.6Nb₂O₆ and the two latter phases reacted to form SBN. The unit cell dimensions of SBN decreased with increasing sintering temperature. On the basis of results,
the corresponding formation mechanism of Sr_0.4Ba_0.6Nb₂O₆ phase was also suggested.

Key words: formation mechanism, strontium barium niobate, XRD

CLC Number:

HUANG Qing-Wei,WANG Pei-Ling,CHENG Yi-Bing,YAN Dong-Sheng. XRD Analysis for the Formation of Sr_0.4Ba_0.6Nb₂O₆ Phase[J]. Journal of Inorganic Materials.

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XRD Analysis for the Formation of Sr_0.4Ba_0.6Nb₂O₆ Phase

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