<trans-title>Microstructure and Property of MoSi2-30Al2O3 Electrothermal Coating Prepared by Atmospheric Plasma Spraying</trans-title>

Yan-Zhe ZHOU; Min LIU; Kun YANG; Wei ZENG; Jin-Bing SONG; Chun-Ming DENG; Chang-Guang DENG

doi:10.15541/jim20180394

Journal of Inorganic Materials, Volume. 34, Issue 6, 646(2019)

Microstructure and Property of MoSi₂-30Al₂O₃ Electrothermal Coating Prepared by Atmospheric Plasma Spraying

Yan-Zhe ZHOU1...2, Min LIU2,*, Kun YANG2, Wei ZENG2, Jin-Bing SONG2, Chun-Ming DENG2 and Chang-Guang DENG2 |Show fewer author(s)

Author Affiliations

¹School of Materials Science and Engineering, Central South University, Changsha 410083, China

²The Key Lab of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Guangdong Institute of New Materials, Guangzhou 510650, China

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Figures & Tables(13)

1. XRD patterns of MoSi₂-30Al₂O₃ powder and coating

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2. SEM images of MoSi₂-30Al₂O₃coating

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3. Polished cross-section morphologies of electrothermal coating system (a) and MoSi₂-30Al₂O₃coating (b, c); EDS analysis of corresponding points (1,2,3)

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4. Thermogravimetric (TG) curves of MoSi₂-Al₂O₃ coating

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5. Thermogravimetric (TG) and differential scanning calorimeter (DSC) curves for MoSi₂-30Al₂O₃ coating

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6. Photograph of ceramic heating roller (a) and infrared thermal image of the heating roller during insulation stage (b)

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7. Heating t-T curves of MoSi₂-Al₂O₃heating roller

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8. Cyclic heating t-T curve of MoSi₂-30Al₂O₃heating roller

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9. Relationship between resistivity of coating and heating time

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10. Relationship between resistivity of coating and temperature

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11. XRD pattern of MoSi₂-30Al₂O₃ coating after 5 heating cycles

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$Surface (a), cross-section (b) and fracture (c) morphologies of MoSi2-30Al2O3 coating after 5 cycles; EDS analysis of corresponding point (1)$

12. Surface (a), cross-section (b) and fracture (c) morphologies of MoSi₂-30Al₂O₃coating after 5 cycles; EDS analysis of corresponding point (1)

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Table 1. Atmospheric plasma spraying parameters
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Table 1. Atmospheric plasma spraying parameters
Sample Current/A Voltage/V Distance/mm Flux of Ar/(L·min^-1) Flux of H₂/(L·min^-1) Powder feed rate/(g·min^-1)
NiAl 600 70 110 45 8 20
MgAl₂O₄ 630 75 110 40 11 19
MoSi-Al₂O₃ 600 76 110 41 12 24

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Yan-Zhe ZHOU, Min LIU, Kun YANG, Wei ZENG, Jin-Bing SONG, Chun-Ming DENG, Chang-Guang DENG. Microstructure and Property of MoSi₂-30Al₂O₃ Electrothermal Coating Prepared by Atmospheric Plasma Spraying[J]. Journal of Inorganic Materials, 2019, 34(6): 646

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