Crack healing of ferrosilicochromium-filled polymer-derived ceramic composites

Аннотация

In this study, SiOC/FeSiCr/SiC-ceramics were derived by using polymethylsilsesquioxane as a polymeric precursor and FeSiCr (iron-chromium-silicide) and SiC powders as ceramic fillers in a polymer-extrusion process followed by pyrolytic conversion in a nitrogen atmosphere. The crack healing properties of the ceramic in an oxidising atmosphere were subsequently investigated. The SiOC/FeSiCr/SiC-ceramics showed crack closure and strength recovery behaviour after oxidation treatments in air from 600 to 1300 °C with various holding times from 2 to 1000 min. The crack healing mechanisms at different oxidation temperatures and with various dwell times are discussed.

Язык оригинала	Английский
Страницы (с-по)	2495-2501
Число страниц	7
Журнал	Journal of the European Ceramic Society
Том	38
Номер выпуска	6
DOI	https://doi.org/10.1016/j.jeurceramsoc.2018.01.015
Состояние	Опубликовано - 1 июн 2018

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Доступ к документу

10.1016/j.jeurceramsoc.2018.01.015

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Цитировать

Schlier, L., Fu, Z., Harris, J., Greil, P., & Travitzky, N. (2018). Crack healing of ferrosilicochromium-filled polymer-derived ceramic composites. Journal of the European Ceramic Society, 38(6), 2495-2501. https://doi.org/10.1016/j.jeurceramsoc.2018.01.015

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title = "Crack healing of ferrosilicochromium-filled polymer-derived ceramic composites",

abstract = "In this study, SiOC/FeSiCr/SiC-ceramics were derived by using polymethylsilsesquioxane as a polymeric precursor and FeSiCr (iron-chromium-silicide) and SiC powders as ceramic fillers in a polymer-extrusion process followed by pyrolytic conversion in a nitrogen atmosphere. The crack healing properties of the ceramic in an oxidising atmosphere were subsequently investigated. The SiOC/FeSiCr/SiC-ceramics showed crack closure and strength recovery behaviour after oxidation treatments in air from 600 to 1300 °C with various holding times from 2 to 1000 min. The crack healing mechanisms at different oxidation temperatures and with various dwell times are discussed.",

keywords = "Crack healing, Polymer derived ceramics, Preceramic polymer, Strength recovery",

author = "Lorenz Schlier and Zongwen Fu and Joe Harris and Peter Greil and Nahum Travitzky",

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T1 - Crack healing of ferrosilicochromium-filled polymer-derived ceramic composites

AU - Schlier, Lorenz

AU - Fu, Zongwen

AU - Harris, Joe

AU - Greil, Peter

AU - Travitzky, Nahum

PY - 2018/6/1

Y1 - 2018/6/1

N2 - In this study, SiOC/FeSiCr/SiC-ceramics were derived by using polymethylsilsesquioxane as a polymeric precursor and FeSiCr (iron-chromium-silicide) and SiC powders as ceramic fillers in a polymer-extrusion process followed by pyrolytic conversion in a nitrogen atmosphere. The crack healing properties of the ceramic in an oxidising atmosphere were subsequently investigated. The SiOC/FeSiCr/SiC-ceramics showed crack closure and strength recovery behaviour after oxidation treatments in air from 600 to 1300 °C with various holding times from 2 to 1000 min. The crack healing mechanisms at different oxidation temperatures and with various dwell times are discussed.

AB - In this study, SiOC/FeSiCr/SiC-ceramics were derived by using polymethylsilsesquioxane as a polymeric precursor and FeSiCr (iron-chromium-silicide) and SiC powders as ceramic fillers in a polymer-extrusion process followed by pyrolytic conversion in a nitrogen atmosphere. The crack healing properties of the ceramic in an oxidising atmosphere were subsequently investigated. The SiOC/FeSiCr/SiC-ceramics showed crack closure and strength recovery behaviour after oxidation treatments in air from 600 to 1300 °C with various holding times from 2 to 1000 min. The crack healing mechanisms at different oxidation temperatures and with various dwell times are discussed.

KW - Crack healing

KW - Polymer derived ceramics

KW - Preceramic polymer

KW - Strength recovery

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