Bartsch, Marion and Artzt, Katia and Wischek, Janine and Eggeler, Mario and Watermeyer, Philipp and Kelm, Klemens and Manero, Albert and Raghavan, Seetha and Kenesei, Peter and Okasinski, John and Almer, Jonathan (2017) Generating 3-dimensional microstructure models of porous ceramic matrix composites by means of X-ray tomography and FIB-slicing. 41st International conference on advanced ceramics and composites, 22.-27. Jan. 2017, Daytona Beach, FL, U.S.A..
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Abstract
Ceramic matrix composites (CMC) are developed for providing a high damage tolerance compared to monolithic ceramics. The mechanical behaviour of CMCs is defined by the properties of the constituents and the complex microstructure, which is controlled by the processing parameters. In this study the 3-dimensional microstructure of an all oxide porous CMC has been characterized on different length scales, utilizing non-destructive X-ray tomography in the range from mm to μm and combined sequential focused ion beam (FIB) ablation and scanning electron microscopy in the submicron range. The derived virtual microstructures were analysed, and data were used for generating numerical models for further mechanical or thermal analyses by finite element method. The CMC material was processed at DLR by winding a continuous alumina fibre bundle, which is infiltrated by aqueous alumina slurry, onto a mandrel and further sintering of the generated ceramic ‘green body’. The result is a CMC with complex hierarchical microstructure. Fibre arrangement, fibre volume fraction, and matrix porosity can be varied in a wide range.
Item URL in elib: | https://elib.dlr.de/115788/ | ||||||||||||||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||||||||||||||
Title: | Generating 3-dimensional microstructure models of porous ceramic matrix composites by means of X-ray tomography and FIB-slicing | ||||||||||||||||||||||||||||||||||||
Authors: |
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Date: | 23 January 2017 | ||||||||||||||||||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||||||
Keywords: | microstructure, tomography, CMC, x-ray, FIB | ||||||||||||||||||||||||||||||||||||
Event Title: | 41st International conference on advanced ceramics and composites | ||||||||||||||||||||||||||||||||||||
Event Location: | Daytona Beach, FL, U.S.A. | ||||||||||||||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||||||||||||||
Event Dates: | 22.-27. Jan. 2017 | ||||||||||||||||||||||||||||||||||||
Organizer: | The American Ceramic Society | ||||||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||||||||||||||||||||
HGF - Program Themes: | propulsion systems | ||||||||||||||||||||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||||||||||||||||||||
DLR - Program: | L ER - Engine Research | ||||||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | L - Virtual Engine and Validation methods (old) | ||||||||||||||||||||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Materials Research > Experimental and Numerical Methods Institute of Materials Research > Mechanical Testing of Materials | ||||||||||||||||||||||||||||||||||||
Deposited By: | Bartsch, Dr.-Ing. Marion | ||||||||||||||||||||||||||||||||||||
Deposited On: | 22 Nov 2017 10:35 | ||||||||||||||||||||||||||||||||||||
Last Modified: | 22 Nov 2017 10:35 |
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