Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment

Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment

Using TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> mixed powder as spray-feed, an electrical-heating coating was successfully fabricated by atmospheric plasma spraying technology. The phase composition, microstructure, and electrical-heating performance of the...

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Main Authors: Xiyang Li, Kun Yang, Dezhi Wang, Chunming Deng, Yanzhe Zhou
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Coatings
Subjects:
tio<sub>2</sub>-15mgal<sub>2</sub>o<sub>4</sub> coating
electrical-heating property
atmospheric plasma spraying
resistivity
hydrogen heat treatment
Online Access:https://www.mdpi.com/2079-6412/10/2/177
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spelling doaj-9afd07e1ce66481e88a0b4511d7cff922020-11-24T21:45:05ZengMDPI AGCoatings2079-64122020-02-0110217710.3390/coatings10020177coatings10020177Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat TreatmentXiyang Li0Kun Yang1Dezhi Wang2Chunming Deng3Yanzhe Zhou4School of Materials Science and Engineering, Central South University, Changsha 410083, ChinaGuangdong Institute of New Materials, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Key Lab of Guangdong for Modern Surface Engineering Technology, Guangzhou 510650, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaGuangdong Institute of New Materials, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Key Lab of Guangdong for Modern Surface Engineering Technology, Guangzhou 510650, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaUsing TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> mixed powder as spray-feed, an electrical-heating coating was successfully fabricated by atmospheric plasma spraying technology. The phase composition, microstructure, and electrical-heating performance of the coating were characterized by XRD, SEM, and cyclic electrification tests, respectively. The coating samples were heat-treated at 350 &#176;C in a hydrogen atmosphere. The results show that TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> coating can be heated over 300 &#176;C within 30 m at 55.1 V which preserves heat for a long time. Before heat treatment, the available heating temperature of the coating decreases significantly with electrification cycles. The resistivity of coating rises rapidly during the cyclic electricity test. After hydrogen heat treatment, the electrical-heating property of coatings is significantly enhanced.https://www.mdpi.com/2079-6412/10/2/177tio<sub>2</sub>-15mgal<sub>2</sub>o<sub>4</sub> coatingelectrical-heating propertyatmospheric plasma sprayingresistivityhydrogen heat treatment
collection DOAJ
language English
format Article
sources DOAJ
author Xiyang Li
Kun Yang
Dezhi Wang
Chunming Deng
Yanzhe Zhou
spellingShingle Xiyang Li
Kun Yang
Dezhi Wang
Chunming Deng
Yanzhe Zhou
Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment
Coatings
tio<sub>2</sub>-15mgal<sub>2</sub>o<sub>4</sub> coating
electrical-heating property
atmospheric plasma spraying
resistivity
hydrogen heat treatment
author_facet Xiyang Li
Kun Yang
Dezhi Wang
Chunming Deng
Yanzhe Zhou
author_sort Xiyang Li
title Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment
title_short Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment
title_full Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment
title_fullStr Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment
title_full_unstemmed Property of TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment
title_sort property of tio<sub>2</sub>-15mgal<sub>2</sub>o<sub>4</sub> electrical-heating coating prepared by atmospheric plasma spraying and hydrogen heat treatment
publisher MDPI AG
series Coatings
issn 2079-6412
publishDate 2020-02-01
description Using TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> mixed powder as spray-feed, an electrical-heating coating was successfully fabricated by atmospheric plasma spraying technology. The phase composition, microstructure, and electrical-heating performance of the coating were characterized by XRD, SEM, and cyclic electrification tests, respectively. The coating samples were heat-treated at 350 &#176;C in a hydrogen atmosphere. The results show that TiO<sub>2</sub>-15MgAl<sub>2</sub>O<sub>4</sub> coating can be heated over 300 &#176;C within 30 m at 55.1 V which preserves heat for a long time. Before heat treatment, the available heating temperature of the coating decreases significantly with electrification cycles. The resistivity of coating rises rapidly during the cyclic electricity test. After hydrogen heat treatment, the electrical-heating property of coatings is significantly enhanced.
topic tio<sub>2</sub>-15mgal<sub>2</sub>o<sub>4</sub> coating
electrical-heating property
atmospheric plasma spraying
resistivity
hydrogen heat treatment
url https://www.mdpi.com/2079-6412/10/2/177
work_keys_str_mv AT xiyangli propertyoftiosub2sub15mgalsub2subosub4subelectricalheatingcoatingpreparedbyatmosphericplasmasprayingandhydrogenheattreatment
AT kunyang propertyoftiosub2sub15mgalsub2subosub4subelectricalheatingcoatingpreparedbyatmosphericplasmasprayingandhydrogenheattreatment
AT dezhiwang propertyoftiosub2sub15mgalsub2subosub4subelectricalheatingcoatingpreparedbyatmosphericplasmasprayingandhydrogenheattreatment
AT chunmingdeng propertyoftiosub2sub15mgalsub2subosub4subelectricalheatingcoatingpreparedbyatmosphericplasmasprayingandhydrogenheattreatment
AT yanzhezhou propertyoftiosub2sub15mgalsub2subosub4subelectricalheatingcoatingpreparedbyatmosphericplasmasprayingandhydrogenheattreatment
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