| alpha- to gamma-Al2O3 martensitic transformation induced by pulsed laser irradiation | |
| Yan, P. F.1; Du, K.1; Sui, M. L.2 | |
| 通讯作者 | Du, K.(kuidu@imr.ac.cn) |
| 2010-06-01 | |
| 发表期刊 | ACTA MATERIALIA
 |
| ISSN | 1359-6454 |
| 卷号 | 58期号:11页码:3867-3876 |
| 摘要 | A martensitic transformation from the a to the gamma phase of aluminum oxide was observed by transmission electron microscopy (TEM) upon rapid heating induced by pulsed laser irradiation. Two variants possessing a twin relationship were found in the product. High-resolution TEM reveals that the transformation is achieved via the glide of quarter partial dislocations on every other basal plane of alpha-Al2O3. The high thermal stress caused by pulsed laser irradiation is believed to be the main driving force of the phase transformation. This martensitic transformation is associated with a positive volume change and substantial shear strain. The overall shear strain could be minimized by the self-accommodating variants. These characteristics suggest potential application of the martensitic transformation for transformation toughening in ceramic materials. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 关键词 | Martensitic phase transformation Ceramics High-resolution electron microscopy Twinning Alumina |
| 资助者 | Chinese Academy of Science ; Cheung Kong Scholars Programme of China ; Natural Sciences Foundation of China ; Major State Basic Research Projects of China |
| DOI | 10.1016/j.actamat.2010.03.045 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Chinese Academy of Science ; Cheung Kong Scholars Programme of China ; Natural Sciences Foundation of China[50601027] ; Major State Basic Research Projects of China[2009CB623700] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000278562800006 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/101025 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Du, K. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, P. F.,Du, K.,Sui, M. L.. alpha- to gamma-Al2O3 martensitic transformation induced by pulsed laser irradiation[J]. ACTA MATERIALIA,2010,58(11):3867-3876. |
| APA | Yan, P. F.,Du, K.,&Sui, M. L..(2010).alpha- to gamma-Al2O3 martensitic transformation induced by pulsed laser irradiation.ACTA MATERIALIA,58(11),3867-3876. |
| MLA | Yan, P. F.,et al."alpha- to gamma-Al2O3 martensitic transformation induced by pulsed laser irradiation".ACTA MATERIALIA 58.11(2010):3867-3876. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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