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PRECURSOR-DERIVED CERAMICS: SYNTHESIS, STRUCTURE AND HIGH- TEMPERATURE MECHANICAL PROPERTIES

2008 Edition, July 2008

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ISBN: 9783527613830
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Product Details:

  • Revision: 2008 Edition, July 2008
  • Published Date: July 2008
  • Status: Active, Most Current
  • Document Language:
  • Published By: John Wiley and Sons (WILEY)
  • Page Count: 302
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Preface

The preparation of inorganic materials by thermolysis of preceramic compounds has gained substantial interest during recent years. The general idea of this process route is that elementorganic precursor molecules already contain structural units of the residual inorganics formed by thermolysis, thus providing novel paths of controlling composition, atomic array and microstructure of materials. Of special interest is the manufacture of amorphous or nanocrystalline covalently bonded inorganics on the basis of silicon, boron, carbon and nitrogen, revealing a potential of properties not known from conventionally prepared materials. In order to develop a sound basis for a successful use of such materials and to judge their potential for application, there is a need for profound basic research in the field of their synthesis and processing and in the characterization of their structure and properties.

It was with this intention, when in 1995 the Japanese Science and Technology Corporation (JST) and the Max-Planck-Institut fur Metallforschung (MPI-MF) signed a five-year contract for the cooperation on the synthesis of nanostructured materials by precursor thermolysis and the investigation of their superplastic behavior. It is the aim of this international cooperation to combine studies of elementorganic chemistry, materials processing and materials characterization in order to tailor the microstructure and thus the properties of covalent materials. Of special interest are nano-grained materials and their mechanical properties at high temperatures and to study superplasticity and other dynamic grain boundary phenomena. This cooperation is the most recent item in a long lasting and fruitful cooperation of the Max-Planck-Institut fur Metallforschung and its representatives together with Japanese scientists and institutions active in materials research. In the light of this cooperation an international workshop on Grain Boundary Dynamics of Precursor-Derived Covalent Ceramics was arranged in order to present the status quo in the field of precursor-derived materials and to discuss the mid-term results in this project with the worldwide leading scientists in this research field.

As directors of this cooperation project on the German and Japanese side respectively, we would like to take the opportunity to thank the Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. and the Japanese Science and Technology Corporation for their generous support of the joint research programm. We also would like to thank all the scientists who participated in the workshop for their contributions to the scientific presentations and discussions. We would like to express our special thanks to Dr. W. Hasenclever, former Secretary General of the Max-Planck-Gesellschaft, Dr. J. Roemer-Mahler (Bundesministerium fur Bildung, Forschung und Technologie, BMBF) and Professor Dr. Dr. h.c. mult. Gunter Petzow, Emeritus of the Max-Planck-Institut fur Metallforschung for their introductory contributions on the globalization of research and Japanese-German Research Cooperations.

The organizers of the workshop gratefully acknowledge the financial support given by Deutsche Forschungsgemeinschaft (DFG), Bonn/Germany; Dr. Ernst-Rudolf- SchloeDmann Stiftung, Germany; Japan Science and Technology Corporation (JST), Japan; Max-Planck-Gesellschaft zur Forderung der Wissenschaften e. V. (MPG), MunchedGermany