High temperature creep‐mediated functionality in polycrystalline barium titanate
High temperature creep‐mediated functionality in polycrystalline barium titanate
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DOI：
10.1111/jace.16881
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发表时间：
2019-11
影响因子：
3.9
通讯作者：
Pengrong Ren;Marion Höfling;J. Koruza;S. Lauterbach;Xijie Jiang;T. Frömling;D. Khatua;C. Dietz;L. Porz;R. Ranjan;H. Kleebe;J. Rödel
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文献类型：
--
作者：
Pengrong Ren;Marion Höfling;J. Koruza;S. Lauterbach;Xijie Jiang;T. Frömling;D. Khatua;C. Dietz;L. Porz;R. Ranjan;H. Kleebe;J. Rödel
材料的功能特性可以使用0维（点缺陷），一维（位错），二维（接口）和三维（沉淀物，第二相颗粒和孔隙）缺陷。1在功能材料中，重点放在受体，供体，或等价掺杂，伴随的缺点是，诱导的移动的点缺陷可能导致有限的温度稳定性或相对于高电场的稳定性，因为，例如，在高功率材料中。2虽然在文献中讨论了晶粒边界3或第二相对性能的影响，但仍然缺乏关于一维掺杂的知识，特别是在诸如压电和铁电的电陶瓷领域。对于三维缺陷，Lalitha等人4研究了第二相硬化的影响，作为一种硬化铁电体的方法。A recently described design concept，接收日期：2019年9月3日|修订日期：2019年10月23日|接受日期：2019年10月23日DOI：10.1111/jace.16881
Functional properties of materials can be tailored using 0-dimensional (point defects), 1-dimensional (dislocations), 2-dimensional (interfaces), and 3-dimensional (precipitates, second-phase particles, and pores) defects.1 In functional materials, a strong emphasis is placed on acceptor-, donor-, or isovalent doping with the attendant disadvantage that induced mobile point defects may incur limited temperature stability or stability with respect to high electric fields, as, for example, in high-power materials.2 While the influence of grain boundaries3 or secondary phases on the properties is discussed in literature, there is still a lack of knowledge about 1-dimensional doping, especially in the field of electroceramics such as piezoand ferroelectrics. For 3-dimensional defects Lalitha et al4 investigated the influence of second-phase hardening as an approach to harden ferroelectrics. A recently described design concept, Received: 3 September 2019 | Revised: 23 October 2019 | Accepted: 23 October 2019 DOI: 10.1111/jace.16881