首页> 外文会议>American Ceramic Society Annual Meeting and Exposition; 20050410-13; Baltimore,MD(US) >BARIUM STRONTIUM TITANATE GLASS CERAMICS FOR HIGH ENERGY DENSITY CAPACITORS
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BARIUM STRONTIUM TITANATE GLASS CERAMICS FOR HIGH ENERGY DENSITY CAPACITORS

机译:钛酸钡锶玻璃陶瓷,用于高能密度电容器

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Barium titanate was studied in 2003 as a potential ferroelectric glass-ceramic for high energy density dielectric materials. The dielectric constant of these heat-treated samples was up to 300 and the dielectric breakdown strength up to 800 kV/cm. In this study a new ferroelectric phase barium strontium titanate (BST) was introduced due to the potentially greater energy density and to the stability at higher field strengths. This paper will present the benefits and complications of this substitution, while highlighting the dielectric properties that result. In this case the dielectric constant reached 1000 for BST 80/20 and breakdown strength was as high as 800 kV/cm for BST 50/50. This did not result in exceptional energy density (~ 0.70 J/cc), but the existence of dendrites and pores means that more optimization is needed.
机译:钛酸钡在2003年作为高能量密度介电材料的潜在铁电玻璃陶瓷而被研究。这些热处理样品的介电常数高达300,介电击穿强度高达800 kV / cm。在这项研究中,引入了一种新的铁电相钛酸锶锶(BST),因为它具有更高的能量密度以及在更高的场强下的稳定性。本文将介绍这种替代的好处和复杂性,同时重点介绍由此产生的介电性能。在这种情况下,BST 80/20的介电常数达到1000,而BST 50/50的击穿强度则高达800 kV / cm。这不会导致异常的能量密度(〜0.70 J / cc),但是树枝状晶体和孔的存在意味着需要更多的优化。

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