Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines

Thermal barrier coating (TBC) systems reduce the temperature of the metallic substrate of aerospace engines, resulting in improved component durability, better fuel economy and performance. Scientific research and innovation on TBC systems evolves rapidly and diversely over the years. Hence, an unde...

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Main Authors: Khor, Khiam Aik, Yu, L. G.
Other Authors: -
Format: Conference Paper
Language:English
Published: 2021
Subjects:
Online Access:https://hdl.handle.net/10356/154621
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author Khor, Khiam Aik
Yu, L. G.
author2 -
author_facet -
Khor, Khiam Aik
Yu, L. G.
author_sort Khor, Khiam Aik
collection NTU
description Thermal barrier coating (TBC) systems reduce the temperature of the metallic substrate of aerospace engines, resulting in improved component durability, better fuel economy and performance. Scientific research and innovation on TBC systems evolves rapidly and diversely over the years. Hence, an understanding of the research and innovation pathways on TBC systems is extremely important for the future development of aerospace engines. This study examines research publications and patents on TBC during 1980–2019. While USA led the TBC publication output from 1980 to 2010, China takes the lead after 2011 and India too is emerging noticeably on TBC research. The citation impact of publications reveal key topic shifts. Distinct peaks identified for (1) materials sciences during 1998–2003; (2) energy during 2001–2007, and (3) chemical engineering during 2009–2018. The visual mappings of author keywords of the publications reveal the progress of TBC technology. Results show shifts in deposition techniques for TBC coating preparation, and thermal management in the engines. The journal papers cited by patents have low correlation to the highly cited papers. This paper introduced an innovation relevance indicator to gauge the relevance of an institution’s scientific research to technological innovation. This novel indicator reveals the industry relevant work among the active institutions and companies with patents in TBC technologies. Universities with significant number TBC patents fall into two broad categories, (1) those who have high (> 70%) collaborations on patents filed, and (2) those that filed patents without existing external collaborations.
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spelling ntu-10356/1546212021-12-29T07:36:13Z Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines Khor, Khiam Aik Yu, L. G. - Talent Recruitment and Career Support (TRACS) - Thermal Barrier Coating Environmental Barrier Coating Thermal barrier coating (TBC) systems reduce the temperature of the metallic substrate of aerospace engines, resulting in improved component durability, better fuel economy and performance. Scientific research and innovation on TBC systems evolves rapidly and diversely over the years. Hence, an understanding of the research and innovation pathways on TBC systems is extremely important for the future development of aerospace engines. This study examines research publications and patents on TBC during 1980–2019. While USA led the TBC publication output from 1980 to 2010, China takes the lead after 2011 and India too is emerging noticeably on TBC research. The citation impact of publications reveal key topic shifts. Distinct peaks identified for (1) materials sciences during 1998–2003; (2) energy during 2001–2007, and (3) chemical engineering during 2009–2018. The visual mappings of author keywords of the publications reveal the progress of TBC technology. Results show shifts in deposition techniques for TBC coating preparation, and thermal management in the engines. The journal papers cited by patents have low correlation to the highly cited papers. This paper introduced an innovation relevance indicator to gauge the relevance of an institution’s scientific research to technological innovation. This novel indicator reveals the industry relevant work among the active institutions and companies with patents in TBC technologies. Universities with significant number TBC patents fall into two broad categories, (1) those who have high (> 70%) collaborations on patents filed, and (2) those that filed patents without existing external collaborations. This study is supported by the Ministry of Education Singapore AcRF Tier 1 grant RG141/17. 2021-12-29T07:36:13Z 2021-12-29T07:36:13Z 2020 Conference Paper Khor, K. A. & Yu, L. G. (2020). Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines. -, 125, 1763-1781. https://dx.doi.org/10.1007/s11192-020-03667-3 https://hdl.handle.net/10356/154621 10.1007/s11192-020-03667-3 2-s2.0-85089498957 125 1763 1781 en RG141/17 © Akadémiai Kiadó, Budapest, Hungary 2020
spellingShingle -
Thermal Barrier Coating
Environmental Barrier Coating
Khor, Khiam Aik
Yu, L. G.
Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines
title Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines
title_full Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines
title_fullStr Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines
title_full_unstemmed Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines
title_short Revealing key topics shifts in thermal barrier coatings (TBC) as indicators of technological developments for aerospace engines
title_sort revealing key topics shifts in thermal barrier coatings tbc as indicators of technological developments for aerospace engines
topic -
Thermal Barrier Coating
Environmental Barrier Coating
url https://hdl.handle.net/10356/154621
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