Pressure-induced reversal between thermal contraction and expansion in ferroelectric PbTiO3
文献类型：期刊论文
| 作者 | Zhu, JL ; Zhang, JZ ; Xu, HW ; Vogel, SC ; Jin, CQ ; Frantti, J ; Zhao, YS |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2014 |
| 卷号 | 4 |
| ISSN号 | 2045-2322 |
| 通讯作者 | Xu, HW (reprint author), Los Alamos Natl Lab, EES Div, POB 1663, Los Alamos, NM 87545 USA. |
| 中文摘要 | Materials with zero/near zero thermal expansion coefficients are technologically important for applications in thermal management and engineering. To date, this class of materials can only be produced by chemical routes, either by changing chemical compositions or by composting materials with positive and negative thermal expansion. Here, we report for the first time a physical route to achieve near zero thermal expansion through application of pressure. In the stability field of tetragonal PbTiO3 we observed pressure-induced reversals between thermal contraction and expansion between ambient pressure and 0.9 GPa. This hybrid behavior leads to a mathematically infinite number of crossover points in the pressure-volume-temperature space and near-zero thermal expansion coefficients comparable to or even smaller than those attained by chemical routes. The observed pressures for this unusual phenomenon are within a small range of 0.1-0.9 GPa, potentially feasible for designing stress-engineered materials, such as thin films and nano-crystals, for thermal management applications. |
| 资助信息 | Los Alamos National Security LLC under DOE [DE-AC52-06NA25396]; NSF MOST of China; U.S. Department of Energy's Office of Basic Energy Sciences |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59732]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhu, JL,Zhang, JZ,Xu, HW,et al. Pressure-induced reversal between thermal contraction and expansion in ferroelectric PbTiO3[J]. SCIENTIFIC REPORTS,2014,4. |
| APA | Zhu, JL.,Zhang, JZ.,Xu, HW.,Vogel, SC.,Jin, CQ.,...&Zhao, YS.(2014).Pressure-induced reversal between thermal contraction and expansion in ferroelectric PbTiO3.SCIENTIFIC REPORTS,4. |
| MLA | Zhu, JL,et al."Pressure-induced reversal between thermal contraction and expansion in ferroelectric PbTiO3".SCIENTIFIC REPORTS 4(2014). |
入库方式： OAI收割
来源：物理研究所
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