| Fe离子注入α-Al2O3单晶注入态和还原气氛退火态的微观结构 | |
| Alternative Title | Microstructure of α-Al2O3 implanted with iron at room temperature and annealed in a reducing atmosphere |
| 王岩; 齐民; 李国卿; 李斗星 | |
| 2008 | |
| Source Publication | 电子显微学报
 |
| ISSN | 1000-6281 |
| Volume | 27.0Issue:004Pages:287-292 |
| Abstract | 本文利用透射电子显微术，研究了注入Fe离子的α-Al2O3，单晶（sapphire）在还原气氛退火过程中微观结构的变化。研究表明，在还原气氛退火过程中，先前注入的Fe离子析出为α—Fe纳米颗粒。一些α-Fe颗粒周围存在空洞，而一些大的α-Fe颗粒呈现出多面体的轮廓。大部分α—Fe析出相与α—Al2O3基体具有如下取向关系：（111）α-Fe//（0001）sapphire，11^-0α-Fe//112^-0sapphire。只有很少的α—Fe析出相偏离该取向关系，而最大的偏离角小于3°。近重住倒易点阵分析表明：在α-Fe和α—Al2O3体系中，该取向关系是最有利的；而在该体系中发现的另一取向关系（110）α-Fe//（0001）sapphire及〈111〉α-Fe//〈514^-0〉sapphire是次有利取向关系。 |
| Other Abstract | Fe ions were implanted into α-Al2O3. single crystals （sapphire） at energy, of 50 keV to a dose of 1×10^17 ions/cm^ 2 at room temperature. The mierostructure in the implanted region was studied by transmission electron microscopy. With annealing in a reducing atmosphere, the implanted Fe ions precipitate as the α-Fe particles. Some α-Fe particles are attached to voids. The large iron particles greater than 20 nm and some voids clearly have faceted outlines. Most of the α-Fe particles have the orientation relationship （OR） of （ 111 ）α-Fe// （0001）sapphire. and 1 1^-0α-Fe// 11 2^-0sapphire with sapphire. Only a small quantity of the α-Fe particles have the deviation from this OR and the maximum deviation is less than 3°. This OR is predicted precisely by the method of coincidence of reciprocal lattice points. Another OR of （110）.α-Fe//（0001）sapphire and 〈 111 〉 α-Fe// 〈 5 1^- 4^-0 〉 sapphire reported before is confirmed to be secondary preferred orientation in the α-Fe/ sapphire system. |
| Keyword | α-Al2O3单晶 离子注入 透射电子显微术 近重位倒易点阵 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:3402241 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/156083 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | 王岩,齐民,李国卿,等. Fe离子注入α-Al2O3单晶注入态和还原气氛退火态的微观结构[J]. 电子显微学报,2008,27.0(004):287-292. |
| APA | 王岩,齐民,李国卿,&李斗星.(2008).Fe离子注入α-Al2O3单晶注入态和还原气氛退火态的微观结构.电子显微学报,27.0(004),287-292. |
| MLA | 王岩,et al."Fe离子注入α-Al2O3单晶注入态和还原气氛退火态的微观结构".电子显微学报 27.0.004(2008):287-292. |
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