Preliminary study of oxidation behavior of Mo-50Re alloy at different temperature using positron annihilation lifetime spectroscopy

Zhejie Zhu; Wei Yang; Jianjian Shi; Tongguang Zhai; Yichu Wu

doi:10.4028/www.scientific.net/DDF.373.134

Preliminary study of oxidation behavior of Mo-50Re alloy at different temperature using positron annihilation lifetime spectroscopy

Zhejie Zhu, Wei Yang, Jianjian Shi, Tongguang Zhai, Yichu Wu

Chemical and Materials Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

The oxidized Mo-50Re alloys in air at 573 K and 873 K for various times were investigated by X-Ray diffraction and positron annihilation lifetime spectroscopy. The results indicated that main orthogonal phase MoO₃ together with small amount of monoclinic phase Mo₈O₂₃ were formed on on the surface of the specimens, and the oxide film of specimens oxidized at 873 K were much thicker than that of specimens oxidized at 573 K. Meanwhile, when Mo-50Re specimens oxidized in air at 873K, the defect's size within interface layer of the specimens was larger, and the oxide film on the surface of the specimens contained much more defects. Faster oxidation process were observed occured at 873K, which was likely due to the formation of larger-size interfacial defects.

Original language	English
Title of host publication	Positron Annihilation - ICPA-17
Editors	C.Q. He , Y.C. Wu , N. Qi , Z.Q. Chen
Pages	134-137
Number of pages	4
Volume	373 DDF
DOIs	https://doi.org/10.4028/www.scientific.net/DDF.373.134
State	Published - 2016
Event	17th International Conference onPositron Annihilation, ICPA-17 - Wuhan, China Duration: Sep 20 2016 → Sep 25 2016

Conference

Conference	17th International Conference onPositron Annihilation, ICPA-17
Country/Territory	China
City	Wuhan
Period	9/20/16 → 9/25/16

Bibliographical note

Funding Information:
This research is supported by the National Natural Science Foundation of China under grants 11675123 and J1210061. T. Zhai was sponsored by the US NSF through a grant DMR-1207115.

Publisher Copyright:
© 2016 Trans Tech Publications, Switzerland.

Keywords

Mo-re alloy
Oxidation
Positron
X-Ray diffraction

ASJC Scopus subject areas

Radiation
Materials Science (all)
Condensed Matter Physics

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10.4028/www.scientific.net/DDF.373.134

Cite this

@inproceedings{d0e9e19493934ddabeb84f5844fdf918,

title = "Preliminary study of oxidation behavior of Mo-50Re alloy at different temperature using positron annihilation lifetime spectroscopy",

abstract = "The oxidized Mo-50Re alloys in air at 573 K and 873 K for various times were investigated by X-Ray diffraction and positron annihilation lifetime spectroscopy. The results indicated that main orthogonal phase MoO3 together with small amount of monoclinic phase Mo8O23 were formed on on the surface of the specimens, and the oxide film of specimens oxidized at 873 K were much thicker than that of specimens oxidized at 573 K. Meanwhile, when Mo-50Re specimens oxidized in air at 873K, the defect's size within interface layer of the specimens was larger, and the oxide film on the surface of the specimens contained much more defects. Faster oxidation process were observed occured at 873K, which was likely due to the formation of larger-size interfacial defects.",

keywords = "Mo-re alloy, Oxidation, Positron, X-Ray diffraction",

author = "Zhejie Zhu and Wei Yang and Jianjian Shi and Tongguang Zhai and Yichu Wu",

note = "Funding Information: This research is supported by the National Natural Science Foundation of China under grants 11675123 and J1210061. T. Zhai was sponsored by the US NSF through a grant DMR-1207115. Publisher Copyright: {\textcopyright} 2016 Trans Tech Publications, Switzerland.; 17th International Conference onPositron Annihilation, ICPA-17 ; Conference date: 20-09-2016 Through 25-09-2016",

year = "2016",

doi = "10.4028/www.scientific.net/DDF.373.134",

language = "English",

isbn = "9783038356059",

volume = "373 DDF",

pages = "134--137",

editor = "{He }, C.Q. and {Wu }, Y.C. and {Qi }, N. and {Chen }, Z.Q.",

booktitle = "Positron Annihilation - ICPA-17",

}

Zhu, Z, Yang, W, Shi, J, Zhai, T & Wu, Y 2016, Preliminary study of oxidation behavior of Mo-50Re alloy at different temperature using positron annihilation lifetime spectroscopy. in CQ He , YC Wu , N Qi & ZQ Chen (eds), Positron Annihilation - ICPA-17. vol. 373 DDF, pp. 134-137, 17th International Conference onPositron Annihilation, ICPA-17, Wuhan, China, 9/20/16. https://doi.org/10.4028/www.scientific.net/DDF.373.134

Preliminary study of oxidation behavior of Mo-50Re alloy at different temperature using positron annihilation lifetime spectroscopy. / Zhu, Zhejie; Yang, Wei; Shi, Jianjian et al.
Positron Annihilation - ICPA-17. ed. / C.Q. He ; Y.C. Wu ; N. Qi ; Z.Q. Chen . Vol. 373 DDF 2016. p. 134-137.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Preliminary study of oxidation behavior of Mo-50Re alloy at different temperature using positron annihilation lifetime spectroscopy

AU - Zhu, Zhejie

AU - Yang, Wei

AU - Shi, Jianjian

AU - Zhai, Tongguang

AU - Wu, Yichu

N1 - Funding Information: This research is supported by the National Natural Science Foundation of China under grants 11675123 and J1210061. T. Zhai was sponsored by the US NSF through a grant DMR-1207115. Publisher Copyright: © 2016 Trans Tech Publications, Switzerland.

PY - 2016

Y1 - 2016

N2 - The oxidized Mo-50Re alloys in air at 573 K and 873 K for various times were investigated by X-Ray diffraction and positron annihilation lifetime spectroscopy. The results indicated that main orthogonal phase MoO3 together with small amount of monoclinic phase Mo8O23 were formed on on the surface of the specimens, and the oxide film of specimens oxidized at 873 K were much thicker than that of specimens oxidized at 573 K. Meanwhile, when Mo-50Re specimens oxidized in air at 873K, the defect's size within interface layer of the specimens was larger, and the oxide film on the surface of the specimens contained much more defects. Faster oxidation process were observed occured at 873K, which was likely due to the formation of larger-size interfacial defects.

AB - The oxidized Mo-50Re alloys in air at 573 K and 873 K for various times were investigated by X-Ray diffraction and positron annihilation lifetime spectroscopy. The results indicated that main orthogonal phase MoO3 together with small amount of monoclinic phase Mo8O23 were formed on on the surface of the specimens, and the oxide film of specimens oxidized at 873 K were much thicker than that of specimens oxidized at 573 K. Meanwhile, when Mo-50Re specimens oxidized in air at 873K, the defect's size within interface layer of the specimens was larger, and the oxide film on the surface of the specimens contained much more defects. Faster oxidation process were observed occured at 873K, which was likely due to the formation of larger-size interfacial defects.

KW - Mo-re alloy

KW - Oxidation

KW - Positron

KW - X-Ray diffraction

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DO - 10.4028/www.scientific.net/DDF.373.134

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AN - SCOPUS:85016645181

SN - 9783038356059

VL - 373 DDF

SP - 134

EP - 137

BT - Positron Annihilation - ICPA-17

A2 - He , C.Q.

A2 - Wu , Y.C.

A2 - Qi , N.

A2 - Chen , Z.Q.

T2 - 17th International Conference onPositron Annihilation, ICPA-17

Y2 - 20 September 2016 through 25 September 2016

ER -

Preliminary study of oxidation behavior of Mo-50Re alloy at different temperature using positron annihilation lifetime spectroscopy

Abstract

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Bibliographical note

Keywords

ASJC Scopus subject areas

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