کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1525142 | 1511840 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural change of Ni-Cu alloy nanowires with temperature studied by in situ X-ray absorption fine structure technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structural change of Ni-Cu alloy nanowires with temperature studied by in situ X-ray absorption fine structure technique Structural change of Ni-Cu alloy nanowires with temperature studied by in situ X-ray absorption fine structure technique](/preview/png/1525142.png)
چکیده انگلیسی
Ni-Cu alloy nanowire array, with uniform length and diameter, was well fabricated by using alternating current electrodeposition. Both X-ray diffraction and in situ heating extended X-ray absorption fine structure technique were employed to characterize its structural change with temperature. As expected, a weak concentration fluctuation of Ni and Cu atoms was found in the as-prepared nanowires. However, this concentration fluctuation can be easily eliminated by heating the as-prepared sample at 200 °C, which resulting in an approximately homogeneous Ni-Cu solid solution. From the nanostructural point of view, the serviceability temperature of Ni-Cu alloy nanowire array in magnetism could not exceed 200 °C. The Ni-Ni, Ni-Cu and Cu-Cu bonds were found to have different thermal expansion behaviors, causing the distortion of the crystal cell. An average thermal expansion coefficient (1.1 Ã 10â5 Kâ1) was obtained. The structural change of Ni-Cu alloy nanowires with temperature was discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 121, Issues 1â2, 15 May 2010, Pages 390-394
Journal: Materials Chemistry and Physics - Volume 121, Issues 1â2, 15 May 2010, Pages 390-394
نویسندگان
Guang Mo, Weidong Cheng, Quan Cai, Wei Wang, Kunhao Zhang, Xueqing Xing, Zhongjun Chen, Zhonghua Wu,