Aller au menu Aller au contenu
Science et ingénierie des matériaux et des procédés

> SIMAP_Lelaboratoire > SIMAP_Actualités

Triple Lines in Metals and Ceramics


Centre de Physique des Houches, France, May 25-28, 2010

Triple Lines in Metals and Ceramics
a symposium in honor of Nicolas Eustathopoulos


The symposium has now taken place;
several of the papers presented can be found in
Scripta Materialia
Volume 62, Issue 12, Pages 887-972 (June 2010)
http://www.scriptamat.org/issues/contents?issue_key=S1359-6462%2810%29X0007-0


A triple line is the site of common contact between three phases, be they solid, liquid or vapour. Triple lines are ubiquitous in everyday life but also have considerable importance in materials science. In metals and ceramics, triple lines are found when a liquid contacts a solid, where three crystals meet, or where a liquid meets a grain boundary, at high temperature. In every one of these instances, the triple line is a site of complex phenomena that govern the processing, the microstructure development and the properties of many engineering materials. This complexity arises for a number of reasons: triple lines are dominated by capillarity, are thermodynamically and chemically complex, and furthermore are often sites of singularity, in elasticity for example.

The goal of this symposium is to bring together scientists who have contributed to our understanding of triple lines in metals and ceramics, a topic to which Dr. Nicolas Eustathopoulos has brought many seminal contributions. In solids such as metals and ceramics, interatomic bonding is dominated by chemical bonds, as opposed to physical bonds typical of low-temperature or organic systems. Emphasis will be placed here on dynamic phenomena, involving thermal activation and/or moving triple lines, that are generally observed at elevated temperature in metal and ceramics. The topics addressed will include the physics and chemistry of wetting at both free surfaces and grain boundaries, the interplay between capillarity and mechanical, physical or chemical phenomena, as well as the relation between these phenomena and materials processing, structure and performance.

The bulk of the workshop will consist in presentations by invited speakers who contribute a paper, a didactic presentation, and participate in a discussion the overall aim of which is to identify commonality in phenomena at triple lines as well as promising pathways for future research. In addition, shorter time slots will be available for contributing speakers.

We wish to thank the following for their contribution to the success of this conference: European Office of Aerospace Research and Development, Air Force Office of Scientific Research, United States Air Force Research Laboratory (www.london.af.mil); SchneiderElectric; ESA; Région Rhône-Alpes; ville de Grenoble, Institut Polytechnique de Grenoble, CNRS.

logoAFOSR            logoschneider        
                       logoregion                                
logoCNRS                  logoINPG                   logoSIMaP  

mise à jour le 6 juillet 2010

Univ. Grenoble Alpes