Process Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites

Fiber composites with a three-dimensional braided reinforcement architecture have higher fiber volume content and Z-fiber content compared to a two-dimensional braided reinforcement architecture; as a result, the shear strength increases. Porous oxide fiber composites (OFCs) have the inherent weakne...

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Autores principales:	Martin Kolloch, Georg Puchas, Niels Grigat, Ben Vollbrecht, Walter Krenkel, Thomas Gries
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	oxide fibers bobbin development 3D braiding ceramic matrix composites Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/ea3245d778f14b39ab2952edf05a346f
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spelling	oai:doaj.org-article:ea3245d778f14b39ab2952edf05a346f2021-11-11T17:54:33ZProcess Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites10.3390/ma142163381996-1944https://doaj.org/article/ea3245d778f14b39ab2952edf05a346f2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6338https://doaj.org/toc/1996-1944Fiber composites with a three-dimensional braided reinforcement architecture have higher fiber volume content and Z-fiber content compared to a two-dimensional braided reinforcement architecture; as a result, the shear strength increases. Porous oxide fiber composites (OFCs) have the inherent weakness of a low interlaminar shear strength, which can be specifically increased by the use of a three-dimensional fiber reinforcement. In this work, the braiding process chain for processing highly brittle oxide ceramic fibers is modified; as a consequence, a bobbin, which protects the filament, is developed and quantitatively evaluated on a test rig with regard to tension and filament breakage. Subsequently, a braiding process is designed which takes into account fiber-protecting aspects, and a three-dimensional reinforced demonstrator is produced and tested. After impregnation with an Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> slurry, by either a prepreg process or a vacuum-assisted process, as well as subsequent sintering, the three-dimensional braid-reinforced OFC exhibits an interlaminar shear strength (ILSS) which is higher than that of two-dimensional braid- or fabric-reinforced samples by 64–95%. The influence of the manufacturing process on the relative macropore content is investigated and correlated with the mechanical properties.Martin KollochGeorg PuchasNiels GrigatBen VollbrechtWalter KrenkelThomas GriesMDPI AGarticleoxide fibersbobbin development3D braidingceramic matrix compositesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6338, p 6338 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	oxide fibers bobbin development 3D braiding ceramic matrix composites Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	oxide fibers bobbin development 3D braiding ceramic matrix composites Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Martin Kolloch Georg Puchas Niels Grigat Ben Vollbrecht Walter Krenkel Thomas Gries Process Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites
description	Fiber composites with a three-dimensional braided reinforcement architecture have higher fiber volume content and Z-fiber content compared to a two-dimensional braided reinforcement architecture; as a result, the shear strength increases. Porous oxide fiber composites (OFCs) have the inherent weakness of a low interlaminar shear strength, which can be specifically increased by the use of a three-dimensional fiber reinforcement. In this work, the braiding process chain for processing highly brittle oxide ceramic fibers is modified; as a consequence, a bobbin, which protects the filament, is developed and quantitatively evaluated on a test rig with regard to tension and filament breakage. Subsequently, a braiding process is designed which takes into account fiber-protecting aspects, and a three-dimensional reinforced demonstrator is produced and tested. After impregnation with an Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> slurry, by either a prepreg process or a vacuum-assisted process, as well as subsequent sintering, the three-dimensional braid-reinforced OFC exhibits an interlaminar shear strength (ILSS) which is higher than that of two-dimensional braid- or fabric-reinforced samples by 64–95%. The influence of the manufacturing process on the relative macropore content is investigated and correlated with the mechanical properties.
format	article
author	Martin Kolloch Georg Puchas Niels Grigat Ben Vollbrecht Walter Krenkel Thomas Gries
author_facet	Martin Kolloch Georg Puchas Niels Grigat Ben Vollbrecht Walter Krenkel Thomas Gries
author_sort	Martin Kolloch
title	Process Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites
title_short	Process Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites
title_full	Process Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites
title_fullStr	Process Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites
title_full_unstemmed	Process Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites
title_sort	process chain development for the fabrication of three-dimensional braided oxide ceramic matrix composites
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ea3245d778f14b39ab2952edf05a346f
work_keys_str_mv	AT martinkolloch processchaindevelopmentforthefabricationofthreedimensionalbraidedoxideceramicmatrixcomposites AT georgpuchas processchaindevelopmentforthefabricationofthreedimensionalbraidedoxideceramicmatrixcomposites AT nielsgrigat processchaindevelopmentforthefabricationofthreedimensionalbraidedoxideceramicmatrixcomposites AT benvollbrecht processchaindevelopmentforthefabricationofthreedimensionalbraidedoxideceramicmatrixcomposites AT walterkrenkel processchaindevelopmentforthefabricationofthreedimensionalbraidedoxideceramicmatrixcomposites AT thomasgries processchaindevelopmentforthefabricationofthreedimensionalbraidedoxideceramicmatrixcomposites
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Process Chain Development for the Fabrication of Three-Dimensional Braided Oxide Ceramic Matrix Composites

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