کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1662646 | 1008446 | 2007 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The influence of residual stress and crystallite size on the magnetic properties of electrodeposited nanocrystalline Pd–Co alloys The influence of residual stress and crystallite size on the magnetic properties of electrodeposited nanocrystalline Pd–Co alloys](/preview/png/1662646.png)
Nanocrystalline Pd–Co alloys were obtained by electrodeposition from an ammoniacal chloride bath. The influence of the crystallite size and the residual stress on the magnetic properties of the alloys was investigated. The residual stress increased as the applied current density was increased. It was associated to the high nucleation rate during electrodeposition and correlated to the lattice strain, estimated from the XRD patterns. Also from the XRD patterns the average crystallite size and the lattice constant were determined by Scherrer's and Rietveld's methods, respectively. Both parameters were directly influenced by the applied current density. Magnetic properties such as coercivity, remanence, saturation magnetization and squareness showed strong dependence on the residual stress and crystallite size. Coercivity higher than 1 kOe was achieved when a high current density was applied. High coercivity was attributed to the presence of residual stress and to the small crystallite size of deposits.
Journal: Surface and Coatings Technology - Volume 202, Issue 1, 15 November 2007, Pages 107–113