Alloying effect on K-shell fluorescence parameters of porous NiTi shape memory alloys
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, vol.192, pp.55-60, 2014 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 192
- Publication Date: 2014
- Doi Number: 10.1016/j.elspec.2014.01.002
- Journal Name: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.55-60
- Karadeniz Technical University Affiliated: Yes
Abstract
The K-alpha,K-beta shell production cross-sections and K-beta/K-alpha intensity ratios of porous Ni -49 at% Ti shape memory alloys were determined using energy dispersive X-ray fluorescence (EDXRF) technique. Also, the alloying effect on the K shell fluorescence parameters was investigated. The samples were excited by 59.5 key gamma-rays from an Am-241 annular radioactive source. The K X-rays emitted by the samples were counted by an Ultra-LEGe detector with a resolution of 150 eV at 5.9 key. The structure analyses of the samples were also made using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The deviations between the present results and theoretical values, calculated for pure Ti and Ni, were attributed to charge transfer phenomena and/or rearrangement of valance shell electrons and porosity. (C) 2014 Elsevier B.V. All rights reserved.