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Joining Techniques for Fibre Ceramic Structures

Kochendörfer, Richard and Lützenburger, Nicole and Weihs, Hendrik (2004) Joining Techniques for Fibre Ceramic Structures. Advanced Composite Letters, 13 (1), pp. 75-85. Adcotec Ltd..

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Official URL: http://www.acletters.org/abstracts/13_1_6.html

Abstract

This paper shows three different joining methods for fibre ceramic materials. The so called in-situ joining method is an integral part of the manufacturing process for CMC structures via the liquid silicon infiltration (LSI) process. Stiffening elements, local patches within attachment areas, inserts etc. are permanently joined to shell structures, thus enabling highly integrated components to be realised with low manufacturing costs. Mechanical joining methods are required for the attachment of CMC thermal protection systems and the assembly of large structures which can not be manufactured as one part due to the limited size of manufacturing devices (e.g. autoclave, furnaces ). For these cases, two different principles are available. The first method takes advantage of interlocking effects of hardened castable ceramics for permanent joints and the so called ceramic rivet, which has similar properties to metallic rivets, however using only elastic and frictional properties of the CMC basic material. The last joining method presented within this paper deals with the attachment of hot structures to a cold substructure. To solve the problems associated with thermal mismatch, elastic or kinematic attachment systems, well adapted to the thermal expansion behaviour are suitable candidates.

Document Type:Article
Title:Joining Techniques for Fibre Ceramic Structures
Authors:
AuthorsInstitution or Email of Authors
Kochendörfer, RichardUNSPECIFIED
Lützenburger, NicoleUNSPECIFIED
Weihs, HendrikUNSPECIFIED
Date:2004
Journal or Publication Title:Advanced Composite Letters
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:13
Page Range:pp. 75-85
Editors:
EditorsEmail
Galiotis, CostasUNSPECIFIED
Publisher:Adcotec Ltd.
Status:Published
Keywords:joining, in-situ, CMC, screws, rivets, interlocking, hot structures, elastic, kinematic, thermal mismatch, thermal expansion
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - HT-Werkstoffe und Bauweisen (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design
Institute of Structures and Design > Space Structural Components
Deposited By: Nicole Lützenburger
Deposited On:28 Nov 2005
Last Modified:27 Apr 2009 04:42

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