Low-pressure-responsive heat-storage ceramics for automobiles

The accumulated heat energy of a heat-storage material is typically released over time. If a heat-storage material could preserve its accumulated heat energy for a prolonged period, the applicability of such materials would be expanded greatly. Herein we report a newly fabricated heat-storage materi...

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Autores principales: Ohkoshi, Shin-ichi, Tokoro, Hiroko, Nakagawa, Kosuke, Yoshikiyo, Marie, Jia, Fangda, Namai, Asuka
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6751172/
https://www.ncbi.nlm.nih.gov/pubmed/31534163
http://dx.doi.org/10.1038/s41598-019-49690-0
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author Ohkoshi, Shin-ichi
Tokoro, Hiroko
Nakagawa, Kosuke
Yoshikiyo, Marie
Jia, Fangda
Namai, Asuka
author_facet Ohkoshi, Shin-ichi
Tokoro, Hiroko
Nakagawa, Kosuke
Yoshikiyo, Marie
Jia, Fangda
Namai, Asuka
author_sort Ohkoshi, Shin-ichi
collection PubMed
description The accumulated heat energy of a heat-storage material is typically released over time. If a heat-storage material could preserve its accumulated heat energy for a prolonged period, the applicability of such materials would be expanded greatly. Herein we report a newly fabricated heat-storage material that can store latent heat energy for a long period and release the heat energy upon demand by applying an extremely low pressure. This material is a block-type lambda trititanium pentoxide (block-type λ-Ti(3)O(5)). The block-type λ-phase accumulates a large heat energy of 237 kJ L(−1) and exhibits a pressure-induced phase transition to beta trititanium pentoxide. The pressure-induced phase transition occurs by applying only several tens of bars, and half of the fraction transforms by 7 MPa (70 bar). Such a low-pressure-responsive heat-storage ceramic is effective to reuse excessive heat in automobiles or waste heat at industrial factories.
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spelling pubmed-67511722019-09-30 Low-pressure-responsive heat-storage ceramics for automobiles Ohkoshi, Shin-ichi Tokoro, Hiroko Nakagawa, Kosuke Yoshikiyo, Marie Jia, Fangda Namai, Asuka Sci Rep Article The accumulated heat energy of a heat-storage material is typically released over time. If a heat-storage material could preserve its accumulated heat energy for a prolonged period, the applicability of such materials would be expanded greatly. Herein we report a newly fabricated heat-storage material that can store latent heat energy for a long period and release the heat energy upon demand by applying an extremely low pressure. This material is a block-type lambda trititanium pentoxide (block-type λ-Ti(3)O(5)). The block-type λ-phase accumulates a large heat energy of 237 kJ L(−1) and exhibits a pressure-induced phase transition to beta trititanium pentoxide. The pressure-induced phase transition occurs by applying only several tens of bars, and half of the fraction transforms by 7 MPa (70 bar). Such a low-pressure-responsive heat-storage ceramic is effective to reuse excessive heat in automobiles or waste heat at industrial factories. Nature Publishing Group UK 2019-09-18 /pmc/articles/PMC6751172/ /pubmed/31534163 http://dx.doi.org/10.1038/s41598-019-49690-0 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Ohkoshi, Shin-ichi
Tokoro, Hiroko
Nakagawa, Kosuke
Yoshikiyo, Marie
Jia, Fangda
Namai, Asuka
Low-pressure-responsive heat-storage ceramics for automobiles
title Low-pressure-responsive heat-storage ceramics for automobiles
title_full Low-pressure-responsive heat-storage ceramics for automobiles
title_fullStr Low-pressure-responsive heat-storage ceramics for automobiles
title_full_unstemmed Low-pressure-responsive heat-storage ceramics for automobiles
title_short Low-pressure-responsive heat-storage ceramics for automobiles
title_sort low-pressure-responsive heat-storage ceramics for automobiles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6751172/
https://www.ncbi.nlm.nih.gov/pubmed/31534163
http://dx.doi.org/10.1038/s41598-019-49690-0
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