Alternative TitleMicrostructure 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
Source Publication电子显微学报
Other AbstractFe 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.
Keywordα-Al2O3单晶 离子注入 透射电子显微术 近重位倒易点阵
Indexed ByCSCD
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Document Type期刊论文
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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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