Traces of Defects in the Electronic Structure of Porous Ni-Ti Alloys
Yükleniyor...
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Journal Mater Sci Technol
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The electronic structures of Ni-Ti shape-memory alloy samples were investigated by X-ray absorption fine structure (XAFS) spectroscopy both experimentally and theoretically. In the experimental section, the samples were measured at low temperature to determine the persistent traces of both preheating process and atomic concentration effects on the crystal and electronic structure by X-ray absorption near-edge structure (XANES) spectroscopy. As a second step, the extended-X-ray absorption fine structure (EXAFS) calculations, which are based on different choices of one electron potentials according to Ti coordinations by using the real space multiple scattering method FEFF 8.2 code, were performed. The crystallographic and electronic structures of the porous Ni-Ti alloys were tested at various temperatures ranging from 5 to 1323 K.
Açıklama
Anahtar Kelimeler
Electronic structure, Porous Ni-Ti alloys, Shape memory effect, Transition metals
Kaynak
Journal of Materials Science & Technology
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
29
Sayı
4
