Metal contact quenching mechanism of sintered SrAl2O4:Eu2+, Dy3+ composite coating
Metal contact quenching mechanism of sintered SrAl2O4:Eu2+, Dy3+ composite coating
The self-sensing tribological composite coating (Cu-14Al-X/SrAl2O4:Eu2+, Dy3+) for wear indicator is quenched because of vacuum pressure-assisted sintering method, which do harm to the monitoring of coating. In this paper, we constructed a model to explain the quenching mechanism of SrAl2O4:Eu2+, Dy3+ in alloy coatings. The initial electron concentration and the energy level structures were studied. The results show that contact quenching rather than the traditional thermal quenching is the most important influencing factor for SrAl2O4:Eu2+, Dy3+. The contact metal in coatings can be as a defect level and dissipation center of electron transition, the quenching process could be well explained by the model we proposed.
Coating, Self-sensing, Tribology, Sintering
14483-14488
He, Ling
8f0e5fb9-c916-4207-990d-ad3633b81756
Wu, Xueyan
81a9f7e6-493e-4720-b360-d282cf6fac46
Li, Wensheng
dac30b69-a9c1-4da2-b213-3dd5f02f8bab
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Li, Qiankun
4fc12dec-e078-4857-b7a7-52f18d47062d
October 2017
He, Ling
8f0e5fb9-c916-4207-990d-ad3633b81756
Wu, Xueyan
81a9f7e6-493e-4720-b360-d282cf6fac46
Li, Wensheng
dac30b69-a9c1-4da2-b213-3dd5f02f8bab
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Li, Qiankun
4fc12dec-e078-4857-b7a7-52f18d47062d
He, Ling, Wu, Xueyan, Li, Wensheng, Wang, Shuncai and Li, Qiankun
(2017)
Metal contact quenching mechanism of sintered SrAl2O4:Eu2+, Dy3+ composite coating.
Journal of Materials Science: Materials in Electronics, 28 (19), .
(doi:10.1007/s10854-017-7311-x).
Abstract
The self-sensing tribological composite coating (Cu-14Al-X/SrAl2O4:Eu2+, Dy3+) for wear indicator is quenched because of vacuum pressure-assisted sintering method, which do harm to the monitoring of coating. In this paper, we constructed a model to explain the quenching mechanism of SrAl2O4:Eu2+, Dy3+ in alloy coatings. The initial electron concentration and the energy level structures were studied. The results show that contact quenching rather than the traditional thermal quenching is the most important influencing factor for SrAl2O4:Eu2+, Dy3+. The contact metal in coatings can be as a defect level and dissipation center of electron transition, the quenching process could be well explained by the model we proposed.
Text
s10854-017-7311-x
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Accepted/In Press date: 6 June 2017
e-pub ahead of print date: 24 June 2017
Published date: October 2017
Keywords:
Coating, Self-sensing, Tribology, Sintering
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Local EPrints ID: 415588
URI: http://eprints.soton.ac.uk/id/eprint/415588
PURE UUID: 2a45639d-be25-43b4-a5a1-9381a4be48c2
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Date deposited: 15 Nov 2017 17:30
Last modified: 15 Mar 2024 16:47
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Author:
Ling He
Author:
Xueyan Wu
Author:
Wensheng Li
Author:
Qiankun Li
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