Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testing

Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testing

Volcanic ash (VA) corrosion is a critical factor accelerating the failure of thermal barrier coatings (TBCs). The service life of the TBCs corroded by molten VA is controlled by its penetration depth. Here theoretical model as well as experimental testing is carried out to systematically investigate...

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Main Authors: Bingbing Yin, Zhiyuan Liu, Li Yang, Rudder Wu, Yichun Zhou
Format: Article
Language:English
Published: Elsevier 2019-06-01
Series:Results in Physics
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379719303626
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spelling doaj-affcc3c130384ce89997c8750379e1c32020-11-24T21:34:38ZengElsevierResults in Physics2211-37972019-06-0113Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testingBingbing Yin0Zhiyuan Liu1Li Yang2Rudder Wu3Yichun Zhou4Key Laboratory of Low Dimensional Materials & Application Technology (Ministry of Education), Xiangtan University, Hunan 411105, China; Key Laboratory of Key Film Materials & Application for Equipment of Hunan Province, School of Materials Science and Engineering, Xiangtan University, Hunan 411105, ChinaKey Laboratory of Low Dimensional Materials & Application Technology (Ministry of Education), Xiangtan University, Hunan 411105, China; Key Laboratory of Key Film Materials & Application for Equipment of Hunan Province, School of Materials Science and Engineering, Xiangtan University, Hunan 411105, ChinaCorresponding authors at: Key Laboratory of Low Dimensional Materials & Application Technology (Ministry of Education), Xiangtan University, Hunan 411105, China.; Key Laboratory of Low Dimensional Materials & Application Technology (Ministry of Education), Xiangtan University, Hunan 411105, China; Key Laboratory of Key Film Materials & Application for Equipment of Hunan Province, School of Materials Science and Engineering, Xiangtan University, Hunan 411105, ChinaKey Laboratory of Low Dimensional Materials & Application Technology (Ministry of Education), Xiangtan University, Hunan 411105, China; Key Laboratory of Key Film Materials & Application for Equipment of Hunan Province, School of Materials Science and Engineering, Xiangtan University, Hunan 411105, ChinaCorresponding authors at: Key Laboratory of Low Dimensional Materials & Application Technology (Ministry of Education), Xiangtan University, Hunan 411105, China.; Key Laboratory of Low Dimensional Materials & Application Technology (Ministry of Education), Xiangtan University, Hunan 411105, China; Key Laboratory of Key Film Materials & Application for Equipment of Hunan Province, School of Materials Science and Engineering, Xiangtan University, Hunan 411105, ChinaVolcanic ash (VA) corrosion is a critical factor accelerating the failure of thermal barrier coatings (TBCs). The service life of the TBCs corroded by molten VA is controlled by its penetration depth. Here theoretical model as well as experimental testing is carried out to systematically investigate the factors influencing the penetration depth of VA. The results demonstrate that the most significant factor is the temperature, followed by the infiltration time and VA amount, while both exhibit more obvious effect than the surface roughness of TBCs. Furthermore, a theoretical approach to inhibit the penetration of VA is also proposed based on Cassie model. Keywords: Thermal barrier coatings, Volcanic ash, Modeling, Infiltrationhttp://www.sciencedirect.com/science/article/pii/S2211379719303626
collection DOAJ
language English
format Article
sources DOAJ
author Bingbing Yin
Zhiyuan Liu
Li Yang
Rudder Wu
Yichun Zhou
spellingShingle Bingbing Yin
Zhiyuan Liu
Li Yang
Rudder Wu
Yichun Zhou
Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testing
Results in Physics
author_facet Bingbing Yin
Zhiyuan Liu
Li Yang
Rudder Wu
Yichun Zhou
author_sort Bingbing Yin
title Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testing
title_short Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testing
title_full Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testing
title_fullStr Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testing
title_full_unstemmed Factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: Theoretical calculation and experimental testing
title_sort factors influencing the penetration depth of molten volcanic ash in thermal barrier coatings: theoretical calculation and experimental testing
publisher Elsevier
series Results in Physics
issn 2211-3797
publishDate 2019-06-01
description Volcanic ash (VA) corrosion is a critical factor accelerating the failure of thermal barrier coatings (TBCs). The service life of the TBCs corroded by molten VA is controlled by its penetration depth. Here theoretical model as well as experimental testing is carried out to systematically investigate the factors influencing the penetration depth of VA. The results demonstrate that the most significant factor is the temperature, followed by the infiltration time and VA amount, while both exhibit more obvious effect than the surface roughness of TBCs. Furthermore, a theoretical approach to inhibit the penetration of VA is also proposed based on Cassie model. Keywords: Thermal barrier coatings, Volcanic ash, Modeling, Infiltration
url http://www.sciencedirect.com/science/article/pii/S2211379719303626
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AT zhiyuanliu factorsinfluencingthepenetrationdepthofmoltenvolcanicashinthermalbarriercoatingstheoreticalcalculationandexperimentaltesting
AT liyang factorsinfluencingthepenetrationdepthofmoltenvolcanicashinthermalbarriercoatingstheoreticalcalculationandexperimentaltesting
AT rudderwu factorsinfluencingthepenetrationdepthofmoltenvolcanicashinthermalbarriercoatingstheoreticalcalculationandexperimentaltesting
AT yichunzhou factorsinfluencingthepenetrationdepthofmoltenvolcanicashinthermalbarriercoatingstheoreticalcalculationandexperimentaltesting
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