Powder Injection Molding of Oxide Ceramic CMC

Volker Piotter; Metin Tueluemen; Thomas Hanemann; Michael J. Hoffmann; Benjamin Ehreiser

doi:10.4028/www.scientific.net/KEM.809.148

Paper Titles

Effect of Processing Conditions on Bonding Strength at Al(Si)/Diamond Interfaces
p.115

Agglomerated Tungsten Carbide: A New Approach for Tool Surface Reinforcement
p.121

Investigation of Statistical Distribution of C/C-SiC Composite’s Mechanical Properties
p.131

Injection Moulding of Oxide Ceramic Matrix Composites: Comparing Two Feedstocks
p.140

Powder Injection Molding of Oxide Ceramic CMC
p.148

Modification of the Thermoset Injection Moulding Process for Shaping to Increase the Fibre Length in C/C-SiC Ceramics Produced by the LSI Process
p.153

Evaluation of Ceramic Matrix Composite Edge and Surface Damage
p.161

Custom-Made Reinforcement Structures Made of Inorganic Fibers Challenges, Chances and Technical Approaches
p.167

Influence of Initial Fibre Length and Content Used in the Injection Moulding of CFRP on the Properties of C/C and C/C-SiC Composites
p.171

HomeKey Engineering MaterialsKey Engineering Materials Vol. 809Powder Injection Molding of Oxide Ceramic CMC

Powder Injection Molding of Oxide Ceramic CMC

Abstract:

Ceramic Matrix Composites (CMC) offer improved mechanical properties, especially higher toughness, preferably at elevated temperatures. Fields of application are, for example, highly hot stressed components of aero engines.Processing of Ceramic Matrix Composites by powder injection molding offers attractive economic benefits, however, it represents a considerable challenge. Development of a process chain for the ceramic injection molding of Al₂O₃ short fiber CMC had started by feedstock preparation and characterization. Fiber content varied between 10 to 50 vol.% whereas for binder a well-examined system from KIT was chosen. The fiber content showed a minor effect on the rheological properties but fiber orientation depended strongly on the apparent shear profile. The sintering behavior was affected as well, i.e. higher densities were achieved.

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Periodical:

Key Engineering Materials (Volume 809)

Pages:

148-152

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.809.148

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Online since:

June 2019

Authors:

Volker Piotter*, Metin Tueluemen, Thomas Hanemann, Michael J. Hoffmann, Benjamin Ehreiser

Keywords:

Ceramic-Matrix Composite, Feedstock Viscosity, Fiber Orientation, Oxide Ceramics, Powder Injection Molding

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