Fabrication and Characteristics of Strontium barium niobate/barium strontium titanate ceramics by Po

来源 :2012 Postdoctoral Symposium of China on Materials Science & | 被引量 : 0次 | 上传用户：ccshixg

【摘要】

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【出处】

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2012 Postdoctoral Symposium of China on Materials Science &

【发表日期】

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2012年8期

【关键词】

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SBN/BST peroviskite phase tetragonal tungsten bronze phase XPS

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　　(Ba0.7, Sr0.3)Nb2O6-(1-y)(Ba0.7, Sr0.3)TiO3 (SBN/BST in short) composite ceramics with different Nb/Ti ratios were fabricated using a Powder-Sol (P-S) method with Nb2O5 fine powders suspended in the barium strontium titanate (BST in short) sol solution.The X-ray diffraction results indicated that three intermediate phases, i.e.TiO2, BaNb2O6 and SrNb2O6 were developed during the formation of SBN-BST.Powders obtained from dried gels were calcined at 800℃ for 3 h.The chemical composition of 0.7BaO.0.3SrO·(1-y)TiO2·yNb2O5 composite ceramics were studied by X-ray photoelectron spectroscopy (XPS).The core-level spectra ofNb3d, Ti2p and Ols were studied.

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Fabrication and Characteristics of Strontium barium niobate/barium strontium titanate ceramics by Po

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