Electronic structure and bonding in Mo3Si, Mo5Si3, and Mo„Si,Al...2 alloys investigated by x-ray photoelectron spectroscopy and density-functional theory
نویسندگان
چکیده
D. A. Pankhurst,1 Z. Yuan,2 D. Nguyen-Manh,3,* M.-L. Abel,2 G. Shao,2 J. F. Watts,2 D. G. Pettifor,1 and P. Tsakiropoulos2 1Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, United Kingdom 2School of Engineering, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom 3UKAEA Fusion, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, United Kingdom sReceived 16 July 2004; published 18 February 2005d
منابع مشابه
Mo-Si-B Alloy Development
Alloys consisting of the phases α-Mo (Mo solid solution), Mo3Si, and Mo5SiB2 (“T2”) were fabricated by ingot and powder metallurgy. A novel powder-metallurgical processing technique was developed which allows the fabrication of silicide alloys with a continuous α-Mo matrix. In these alloys the relatively ductile and tough α-Mo matrix acts as a “binder” for brittle silicide particles. An alloy p...
متن کاملAtomic-scale X-ray structural analysis of self-assembled monolayers on Silicon
Two related self-assembled monolayers (SAMs), 4-bromostyrene (BrSty) and 4-bromophenylacetylene (BPA), are photochemically grown from solution on to the monohydride-terminated Si(111) surface. The atomic-scale structures of the resulting SAMs are examined by X-ray standing waves (XSW), X-ray reflectivity (XRR), X-ray fluorescence, atomic-force microscopy (AFM), X-ray photoelectron spectroscopy ...
متن کاملProperties of amorphous carbon–silicon alloys deposited by a high plasma density source
The addition of silicon to hydrogenated amorphous carbon can have the advantageous effect of lowering the compressive stress, improving the thermal stability of its hydrogen, and maintaining a low friction coefficient up to high humidity. Most experiments to date have been on hydrogenated amorphous carbon–silicon alloys (a-C12xSix :H) deposited by rf plasma enhanced chemical vapor deposition. T...
متن کاملValence band study of thermoelectric Zintl-phase SrZn2Sb2 and YbZn2Sb2: X-ray photoelectron spectroscopy and density functional theory
The electronic structure of SrZn2Sb2 and YbZn2Sb2 is investigated using density functional theory and high-resolution x-ray photoemission spectroscopy. Both traditional Perdew-Burke-Ernzerhof and state-of-theart hybrid Heyd-Scuseria-Ernzerhof functionals have been employed to highlight the importance of proper treatment of exchange-dependent Zn 3d states, Yb 4f states, and band gaps. The role o...
متن کاملFirst-principles study of electronic structures and stability of body-centered cubic Ti–Mo alloys by special quasirandom structures
The electronic structures and structural properties of body-centered cubic Ti-Mo alloys were studied by first-principles calculations. The special quasirandom structures (SQS) model was adopted to emulate the solid solution state of the alloys. The valence band electronic structures of Ti-Mo and Ti-Mo-Fe alloys were measured by hard x-ray photoelectron spectroscopy. The structural parameters an...
متن کامل