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Influence of fiber orientation and matrix processing on the tensile and creep performance of Nextel 610 reinforced polymer derived ceramic matrix composites

Volkmann, Eike and Tushtev, Kamen and Koch, Dietmar and Wilhelmi, Christian and Grathwohl, Georg and Rezwan, Kurosch (2014) Influence of fiber orientation and matrix processing on the tensile and creep performance of Nextel 610 reinforced polymer derived ceramic matrix composites. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing (614), pp. 171-179. Elsevier. DOI: 10.1016/j.msea.2014.07.027 ISSN 0921-5093

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Official URL: http://dx.doi.org/10.1016/j.msea.2014.07.027

Abstract

The tensile and creep performance of two Nextels 610(N610) reinforced polymer derived ceramic composites (UMOX™, OXIPOL) is studied up to 1200C. Independent of the fiber orientation(45 or 0/90deg) all samples exhibit a segment where the strain rate was constant. The creep performance in 45deg is matrix dominated and shows a more pronounced primary creep regime, due to changes within the matrix. The following creep regime with a constant strain rate might be attributed to viscous flow of the SiOC within the matrix based on activation energy(283kJ/mol) and stress exponent (0.6). In0/90 deg orientation the creep and tensile performance is independent of oxidation, but directly influenced by grain structure of the fiber. The coarser and non-uniform microstructure of the fibers in UMOX™ decreases the stationary creep rates and changes the diffusiona lcreep mechanism. The possibility to modify the microstructure of the fiber during the manufacturing process might be used to adjust e.g. the strength and creep stability of these materials related to the desired applications.

Item URL in elib:https://elib.dlr.de/93414/
Document Type:Article
Title:Influence of fiber orientation and matrix processing on the tensile and creep performance of Nextel 610 reinforced polymer derived ceramic matrix composites
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Volkmann, EikeUniversität BremenUNSPECIFIED
Tushtev, KamenUniversität BremenUNSPECIFIED
Koch, Dietmardietmar.koch (at) dlr.deUNSPECIFIED
Wilhelmi, ChristianEADS Innovation WorksUNSPECIFIED
Grathwohl, GeorgUniversität BremenUNSPECIFIED
Rezwan, KuroschUniversität BremenUNSPECIFIED
Date:2014
Journal or Publication Title:Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.msea.2014.07.027
Page Range:pp. 171-179
Publisher:Elsevier
ISSN:0921-5093
Status:Published
Keywords:Ceramic-matrix composites(CMCs) Oxides Creep High-temperature properties
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Deposited By: Koch, Dietmar
Deposited On:22 Dec 2014 16:24
Last Modified:06 Sep 2019 15:28

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