Characterization of Microstructural and Morphological Properties in As-deposited Ta/NiFe/IrMn/CoFe/Ta Multilayer System

doi:10.1016/j.jmst.2013.10.024

J. Mater. Sci. Technol.

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Characterization of Microstructural and Morphological Properties in As-deposited Ta/NiFe/IrMn/CoFe/Ta Multilayer System

Xianfei Wang¹^,²⁾, Shoumei Xiong¹^,²⁾

1) Department of Materials Sciences and Engineering, University of Anadolu, Eskis¸ehir 26555, Turkey
2) Department of Elementary Education, University of Bart?n, Bart?n 74100, Turkey

Received:2012-09-04 Revised:2012-10-10 Online:2014-04-15 Published:2014-04-22
Contact: R.M. ?ksüzoglu
Supported by:
This work was partially supported by TUBITAK under Grant No. MAG-106M517, the Directorate for Scientific Research Projects of Anadolu University under Grant No. BAP-050255 and the DPT (State Planning Organization of Turkey)through Project No. DPT-2004-06.

Abstract

Abstract:

Surface films that formed on molten AZ91D magnesium alloy in SO₂/air cover gases at 680 °C in a sealed furnace were characterized by scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction and Auger electron spectroscopy. It is revealed that the film formed on molten AZ91D alloy surface in cover gas with high air content can prevent the molten AZ91D alloy from oxidation and ignition. The surface film contained three elements, namely magnesium, oxygen and sulfur, and was mainly composed of MgO and MgS. The properties of the film depended on air content in the cover gas and holding time. Thermodynamic calculation showed that MgSO₄ was the stable phase, and it was concluded that the formation of MgSO₄ was important for the formation of the protective surface film in SO₂/air atmospheres.

Key words: Pulsed DC magnetron sputtering, Surface roughness, Strain and texture

Xianfei Wang, Shoumei Xiong. Characterization of Microstructural and Morphological Properties in As-deposited Ta/NiFe/IrMn/CoFe/Ta Multilayer System[J]. J. Mater. Sci. Technol., DOI: 10.1016/j.jmst.2013.10.024.

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Characterization of Microstructural and Morphological Properties in As-deposited Ta/NiFe/IrMn/CoFe/Ta Multilayer System

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