Please wait a minute...
金属学报  1996, Vol. 32 Issue (3): 303-307    
  论文 本期目录 | 过刊浏览 |
惰性气体凝聚法制备纳米NiAl合金的结构及磁特性
秦晓英;张立德;侯碧辉;梁任又;纪小丽
中国科学院固体物理研究所;中国科技大学;中国科技大学结构分析开放实验室
STRUCTURE AND MAGNETIC CHARACTER OF NANOSTRUCTURED NiAl ALLOY SYNTHESIZED BY INERT-GAS CONDENSATION
QIN Xiaoying; ZHANG Lide; HOU Bihui; LIANG Renyou; JI Xiaoli(Institute of Solid State Physics; Chinese Academy of Sciences; Hefei 230031)( University of Science and Technology; Hefei 230026 )(Structure Research Laboratory; University of Science and Technology; Hefei 230026 )(Manuscript received 1995-03-13; in revised form 1995-09-18)
引用本文:

秦晓英;张立德;侯碧辉;梁任又;纪小丽. 惰性气体凝聚法制备纳米NiAl合金的结构及磁特性[J]. 金属学报, 1996, 32(3): 303-307.
, , , , . STRUCTURE AND MAGNETIC CHARACTER OF NANOSTRUCTURED NiAl ALLOY SYNTHESIZED BY INERT-GAS CONDENSATION[J]. Acta Metall Sin, 1996, 32(3): 303-307.

全文: PDF(361 KB)  
摘要: 用X射线衍射及透射电镜研究用惰性气体凝聚法制备纳米NiAl合金固体的结构结果表明,纳米NiAl合金晶体结构与常规NiAl结构一致,平均粒度为8.6nm,具有较大的晶格(显微)畸变(ε=1.2%),长程有序度有所降低。退火实验显示,当温度低于800K时晶粒不明显长大,具有较好的抗晶粒生长能力。磁共振及磁化研究表明,当NiAl合金制成纳米结构后由弱(或非)磁性转变为强磁性,这种磁性转变可能与具较大的晶格畸变及长程有序度的破坏有关。
关键词 纳米固体NiAl合金结构磁性    
Abstract:The structure of nanostructured NiAl(n-NiAl), synthesized by inert-gas condensation, was investigated by X-ray diffraction and TEM. The results indicated that the crystal structure of n-NiAl is same as that of conventional poly-crystalline NiAl alloy(p-NiAl); and the mean grain size of n-NiAl is 8.6 nm. However, there is severe distortion in the crystal lattice of n- NiAl(the distortion ε = 1 .2%); and the long-range ordering degree of n-NiAl is lower than that of p-NiAl. Annealing experiments showed that the grain growth almost did not occur when annealing temperature was lower than 800 K, indicating that n-NiAl is of high resistance to grain growth. In addition, by using electron-spin resonance and magnetization, the strong magnetism(ferro-or antiferromagnetism) of n-NiAl has been ovserved, and it is different from the conventional p-NiAl with weak one. The enhancement of magnetism of n-NiAl would be related to the severe distortion in the crystal lattice and the damage of long-range ordering degree of n-NiAl. Correspondent: QIN Xiaoying, associate professor, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031
Key words nanostructured solid    NiAl alloy    structure    magnetism
收稿日期: 1996-03-18     
基金资助:国家攀登计划“纳米材料科学”资助
1DaroliaR.In:DaroliaR,LewandowskkiJJ,LiuCT,etal.eds,StructuralIntermetallics,Warrendale:TMS,1993:4952程天一.金属学报,1994,30:A3993张世远,路权,薛荣华,都有为,磁性材料基础.北京:科学出版社,1988:2244KarchJ,BirringerR,GleiterH.Nature,1987,330:5565苏,吴希俊,秦晓英,谢斌,纪小丽,物理学报,1993,42:9696BirringerR,HerrU,GleiterH.SupplTransJpnInstMet,1986;27:437何崇智,郗秀荣,孟庆恩,佟玉,吕世琴.X射线衍射实验技术.上海科学技术出版社,1988:2838秦晓英,张立德.材料研究学报,待发表
[1] 袁江淮, 王振玉, 马冠水, 周广学, 程晓英, 汪爱英. Cr2AlC涂层相结构演变对力学性能的影响[J]. 金属学报, 2023, 59(7): 961-968.
[2] 李谦, 刘凯, 赵天亮. 弹性拉应力下Q235碳钢在5%NaCl盐雾中的成锈行为及其机理[J]. 金属学报, 2023, 59(6): 829-840.
[3] 张德印, 郝旭, 贾宝瑞, 吴昊阳, 秦明礼, 曲选辉. Y2O3 含量对燃烧合成Fe-Y2O3 纳米复合粉末性能的影响[J]. 金属学报, 2023, 59(6): 757-766.
[4] 王寒玉, 李彩, 赵璨, 曾涛, 王祖敏, 黄远. 基于纳米活性结构的不互溶W-Cu体系直接合金化及其热力学机制[J]. 金属学报, 2023, 59(5): 679-692.
[5] 刘满平, 薛周磊, 彭振, 陈昱林, 丁立鹏, 贾志宏. 后时效对超细晶6061铝合金微观结构与力学性能的影响[J]. 金属学报, 2023, 59(5): 657-667.
[6] 邵晓宏, 彭珍珍, 靳千千, 马秀良. 镁合金LPSO/SFs结构间{101¯2}孪晶交汇机制的原子尺度研究[J]. 金属学报, 2023, 59(4): 556-566.
[7] 刘来娣, 丁彪, 任维丽, 钟云波, 王晖, 王秋良. DZ445镍基高温合金高温长时间氧化形成的多层膜结构[J]. 金属学报, 2023, 59(3): 387-398.
[8] 李谦, 孙璇, 罗群, 刘斌, 吴成章, 潘复生. 镁基材料中储氢相及其界面与储氢性能的调控[J]. 金属学报, 2023, 59(3): 349-370.
[9] 刘路军, 刘政, 刘仁辉, 刘永. Nd90Al10 晶界调控对晶界扩散磁体磁性能和微观结构的影响[J]. 金属学报, 2023, 59(11): 1457-1465.
[10] 高晗, 刘力, 周笑宇, 周心怡, 蔡汶君, 周泓伶. Ti6Al4V表面微纳结构的制备及生物活性[J]. 金属学报, 2023, 59(11): 1466-1474.
[11] 杨超, 卢海洲, 马宏伟, 蔡潍锶. 选区激光熔化NiTi形状记忆合金研究进展[J]. 金属学报, 2023, 59(1): 55-74.
[12] 韩冬, 张炎杰, 李小武. 短程有序对高层错能Cu-Mn合金拉-拉疲劳变形行为及损伤机制的影响[J]. 金属学报, 2022, 58(9): 1208-1220.
[13] 刘志愿, 王永贵, 赵成玉, 杨婷, 夏爱林. p型方钴矿热电材料纳米-介观尺度微结构调控[J]. 金属学报, 2022, 58(8): 979-991.
[14] 解磊鹏, 孙文瑶, 陈明辉, 王金龙, 王福会. 制备工艺对FGH4097高温合金微观组织与性能的影响[J]. 金属学报, 2022, 58(8): 992-1002.
[15] 谷瑞成, 张健, 张明阳, 刘艳艳, 王绍钢, 焦大, 刘增乾, 张哲峰. 三维互穿结构SiC晶须骨架增强镁基复合材料制备及其力学性能[J]. 金属学报, 2022, 58(7): 857-867.