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标题： Phase Relations in <svg style="vertical-align:-4.49641pt;width:183.9875px;" id="M1" height="20.85" version="1.1" viewBox="0 0 183.9875 20.85" width="183.9875" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg">
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</svg> (Ln = Nd & Sm) Electroceramics 本地全文： 下载 作者： Amanda L. Snashall ; Yun Liu ; Frank Brink 等期刊名称： Advances in Condensed Matter Physics 印刷版ISSN： 1687-8108 电子版ISSN： 1687-8124 出版年度： 2013 卷号： 2013 DOI： 10.1155/2013/373079 出版社： Hindawi Publishing Corporation 摘要： A careful, systematic investigation of (BLnTss) ceramics has been performed in order to understand the relationship between composition, microstructure evolution, and microwave dielectric properties. In this paper, we report the effects of composition, morphology, and sintering time on the phase relations and properties of BLnTss (Ln = Nd, Nd/Sm, Sm) ceramics. The microwave dielectric properties of the materials are reported in addition to phase characterisation and structural analysis via X-ray diffraction and field emission scanning electron microscopy coupled with energy dispersive X-ray spectroscopy. BLnTss,
, ceramics with high Sm content are found to experience a severe degradation of Qf and changes in trending, associated with the onset of globular and needle-like grain morphology and a Ba-Ti rich phase. ceramics with high Nd content are found to exhibit a secondary phase (Nd2Ti2O7) upon prolonged sintering which resulted in beneficial changes to Qf and without affecting . Two BLnTss ceramics compositions with near-zero were successfully synthesised with high Qf and values.
