10th International Conference on High Temperature Ceramic-Matrix Composites - Register before May 31st!!

Conference Topics > Topic 3 - Interphases

TOPIC 3 - INTERPHASES

The fiber/matrix interfacial domain is a decisive constituent of fiber reinforced ceramic matrices. It consists of a fiber/matrix interface or an interphase. Depending on characteristics of this domain, the composite will be either a brittle ceramic or a damage tolerant composite. Furthermore, interface/interphase engineering is an approach to designing composite with respect to service conditions. The key role of interfacial domain is to protect the reinforcing fibers against fracture. Several requirements, that may appear opposite, have to be met:

-       The fibers have to be bonded to the matrix, in order to ensure material integrity, and to end-up with a continuous medium,

-       Arrest or deflection of cracks initiated in the matrix must be able to take place at interfaces,

-       After crack deflection the loads have to be still carried by the matrix, in order to limit fiber overloading,

-       In aggressive environments, the interfaces and interphases have to be able to protect fibers against aggression from species and to fulfil the above mechanical functions.

An interface is a surface between two phases, or between the fiber and the matrix. An interphase is a film of one or several layers bonded to the fiber and the matrix. An interphase implies the presence of at least two interfaces: one with the matrix, and one with the fiber and more when the interphase consists of a multilayer.

Sub-Topics:

• New developments of interphases for oxide and non-oxide composites

• Characterization and evaluation of interface/interphase characteristics

• Performance of interfaces/interphases in severe environments

• Reinforcement of interfaces/interphases

• Composite behavior/interface characteristics relations

 

Scientific Committee:

SHAOMING DONG, Ceramics Engineering Research Center, Shanghai Institute of Ceramics, China

CEDRIC SAUDER, CEA Saclay, France

GREGORY N. MORSCHER, University of Akron, OH, USA

EDGAR LARA-CURZIO, ORNL, Oak Ridge, TN, USA,

YUKATA KAGAWA, Tokyo University of Technology, Japan

CRAIG PRZYBYLA, ARFL, Dayton, OH, USA

W. (BILL) J. CLEGG, University of Cambridge, UK

SYLVAIN JACQUES, CNRS, LCTS, Pessac, France

 

POINT OF CONTACT:

Dr. Jacques Lamon

CNRS, LMT, Ecole Normale Supérieure Paris - Saclay, France

Tel: (33) 0147402715

E-mail: lamon@lmt.ens-cachan.fr

 

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