Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites

Hardness is one of the important mechanical properties of high-temperature structural ceramics and their composites. In spite of the extensive use of the materials in high-temperature applications, there are few theoretical models for analyzing their temperature-dependent hardness. To fill this gap...

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Autores principales:	Wang Ruzhuan, Li Dingyu, Li Weiguo
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	ceramics and composites hardness temperature-dependent model Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/389ab2a5ec6745c9888197ded58f9da9
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spelling	oai:doaj.org-article:389ab2a5ec6745c9888197ded58f9da92021-12-05T14:10:57ZTemperature dependence of hardness prediction for high-temperature structural ceramics and their composites2191-909710.1515/ntrev-2021-0041https://doaj.org/article/389ab2a5ec6745c9888197ded58f9da92021-06-01T00:00:00Zhttps://doi.org/10.1515/ntrev-2021-0041https://doaj.org/toc/2191-9097Hardness is one of the important mechanical properties of high-temperature structural ceramics and their composites. In spite of the extensive use of the materials in high-temperature applications, there are few theoretical models for analyzing their temperature-dependent hardness. To fill this gap in the available literature, this work is focused on developing novel theoretical models for the temperature dependence of the hardness of the ceramics and their composites. The proposed model is just expressed in terms of some basic material parameters including Young’s modulus, melting points, and critical damage size corresponding to plastic deformation, which has no fitting parameters, thereby being simple for materials scientists and engineers to use in the material design. The model predictions for the temperature dependence of hardness of some oxide ceramics, non-oxide ceramics, ceramic–ceramic composites, diamond–ceramic composites, and ceramic-based cermet are presented, and excellent agreements with the experimental measurements are shown. Compared with the experimental measurements, the developed model can effectively save the cost when applied in the material design, which could be used to predict at any targeted temperature. Furthermore, the models could be used to determine the underlying control mechanisms of the temperature dependence of the hardness of the materials.Wang RuzhuanLi DingyuLi WeiguoDe Gruyterarticleceramics and compositeshardnesstemperature-dependent modelTechnologyTChemical technologyTP1-1185Physical and theoretical chemistryQD450-801ENNanotechnology Reviews, Vol 10, Iss 1, Pp 586-595 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ceramics and composites hardness temperature-dependent model Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801
spellingShingle	ceramics and composites hardness temperature-dependent model Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801 Wang Ruzhuan Li Dingyu Li Weiguo Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites
description	Hardness is one of the important mechanical properties of high-temperature structural ceramics and their composites. In spite of the extensive use of the materials in high-temperature applications, there are few theoretical models for analyzing their temperature-dependent hardness. To fill this gap in the available literature, this work is focused on developing novel theoretical models for the temperature dependence of the hardness of the ceramics and their composites. The proposed model is just expressed in terms of some basic material parameters including Young’s modulus, melting points, and critical damage size corresponding to plastic deformation, which has no fitting parameters, thereby being simple for materials scientists and engineers to use in the material design. The model predictions for the temperature dependence of hardness of some oxide ceramics, non-oxide ceramics, ceramic–ceramic composites, diamond–ceramic composites, and ceramic-based cermet are presented, and excellent agreements with the experimental measurements are shown. Compared with the experimental measurements, the developed model can effectively save the cost when applied in the material design, which could be used to predict at any targeted temperature. Furthermore, the models could be used to determine the underlying control mechanisms of the temperature dependence of the hardness of the materials.
format	article
author	Wang Ruzhuan Li Dingyu Li Weiguo
author_facet	Wang Ruzhuan Li Dingyu Li Weiguo
author_sort	Wang Ruzhuan
title	Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites
title_short	Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites
title_full	Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites
title_fullStr	Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites
title_full_unstemmed	Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites
title_sort	temperature dependence of hardness prediction for high-temperature structural ceramics and their composites
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/389ab2a5ec6745c9888197ded58f9da9
work_keys_str_mv	AT wangruzhuan temperaturedependenceofhardnesspredictionforhightemperaturestructuralceramicsandtheircomposites AT lidingyu temperaturedependenceofhardnesspredictionforhightemperaturestructuralceramicsandtheircomposites AT liweiguo temperaturedependenceofhardnesspredictionforhightemperaturestructuralceramicsandtheircomposites
_version_	1718371528919220224

Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites

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