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您的检索式：作者名="Manuel Hinterstein"
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| 1 | Practical high-performance lead-free piezoelectrics:structural flexibility beyond utilizing multiphase coexistence显示文摘Due to growing concern for the environment and human health, searching for high-performance lead-free piezoceramics has been a hot topic of scientific and industrial research. Despite the significant progress achieved toward enhancing piezoelectricity, further efforts should be devoted to the synergistic improvement of piezoelectricity and its thermal stability. This study provides new insight into these topics.A new KNN-based lead-free ceramic material is presented, which features a large piezoelectric coefficient(d33) exceeding 500 pC/N and a high Curie temperature(Tc) of ~200℃. The superior piezoelectric response strongly relies on the increased composition-induced structural flexibility due to lattice softening and decreased unit cell distortion. In contrast to piezoelectricity anomalies induced via polymorphic transition, this piezoelectricity enhancement is effective within a broad temperature range rather than a specific small range. In particular, a hierarchical domain architecture composed of nano-sized domains along the submicron domains was detected in this material system, which further contributes to the high piezoelectricity. | Qing Liu Yichi Zhang Jing Gao Zhen Zhou Dong Yang Kai-Yang Lee Andrew Studer Manuel Hinterstein Ke Wang Xiaowen Zhang Longtu Li Jing-Feng Li | 2020 | National Science Review2020，7，2： | 5 |
| 2 | 揭示相共存体系PbTiO_(3)-BiScO_(3)中内在和外在压电贡献显示文摘PbTiO_(3)-BiScO_(3)陶瓷兼具高压电系数和高居里温度,在高温传感器和制动器领域极具应用潜力.探明潜在的压电机理对其应用具有重要作用.本文结合先进原位电场高能同步辐射技术和STRAP分析方法,定量揭示了PbTiO_(3)-BiScO_(3)体系相界附近较高应变的内在和外在贡献.观察到在共存的四方相和三方相之间发生了电场诱导的相转变.实验发现畴反转应变主要来源于四方相,而占主导作用的晶格应变主要来源于少量共存的三方相.电场诱导了相含量的变化,定量分析结果表明该体系中可逆应变主要源于内在的晶格应变.相反,不可逆的畴反转应变导致了较大的剩余应变.现有结论表明,将剩余应变转化为可逆应变将是提高压电性能的战略方向.本研究有助于进一步理解高压电性能并有望推进PbTiO_(3)-BiScO_(3)体系的应用. | 孙胜东 刘辉 任洋 Manuel Hinterstein 陈骏 | 2022 | Science China Materials2022，65，1： | 0 |
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