Fabrication and mechanical characterization of rare earth permanent magnet SmCo5 films
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Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study reports mechanical properties of rare earth permanent magnet (REPM) SmCo5 thin films fabricated by RF magnetron sputtering technique. 1 mu m thick SmCo5 thin films were grown on Si (100) substrate at room temperature, and later they were annealed at 400 degrees C. Great care has been taken to decrease O-2 in the chamber throughout deposition. Mechanical and Structural properties of SmCo5 thin films were researched using the nanoindentation and in situ scanning probe microscopy (SPM), Grazing Incident X-ray Diffraction (GIXRD) and Scanning Electron Microscopy (SEM) techniques. Nanoindentation-induced plasticity of SmCo5 thin film was characterized by in situ SPM imaging of indented cross-sections. Nanoindentation results show load-displacement curves are continuous and smooth that there is no pile-up and sink-in behavior. Furthermore, both elastic modulus and nano hardness values of REPM SmCo5 exhibit peak load dependence. Nanohardness increases with increasing indentation test load, while the reduced modulus decrease with increasing indentation test load. The obtained values of the intrinsic nanohardness and intrinsic reduced modulus are 3.47 +/- 0.07 GPa and 43.09 +/- 1.60 GPa, respectively. (C) 2016 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
SmCo5 thin film, Mechanical properties, Nanoindentation
Kaynak
Journal of Alloys and Compounds
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
694
