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Thermodynamic Approach to the Design of New Cermets Processed by Liquid Phase Sintering

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Thermodynamic Modeling and Materials Data Engineering

Part of the book series: Data and Knowledge in a Changing World ((DATAKNOWL))

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Abstract

High performance materials can be obtained by mixing two phases with complementary properties and adequate microstructure. The design and the processing of such materials can be defined using phase equilibrium and stability data. For example, the design of hard and tough cermets based on TiB2 is described:

selection of metallic binder (Fe or Fe2Ti) for the TiB2 grains and evaluation of the liquid phase sintering conditions with the phase diagrams,

optimization of the sintering process by addition elements chosen for their compound chemical stability to cancel impurity effects without alteration of the material constitution.

Résumé

Des matériaux à hautes caractéristiques peuvent résulter du mélange de phases présentant des propriétés complémentaires et une microstructure adaptée. La conception de tels matériaux par une approche thermodynamique est possible. L’exemple est donné pour des cermets durs et tenaces à base de TiB2:

  • sélection d’un liant métallique (Fe ou Fe2Ti) pour les grains de TiB2 et prédiction des conditions de frittage du melange TiB2 - Fe(Fe2Ti) à l’aide de diagrammes d’équilibre,

  • optimisation du procédé par addition d’éléments, choisis à partir de données de stabilité chimique pour neutraliser les impuretés, sans altérer les phases du matériau.

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Author information

Authors and Affiliations

  1. Laboratoire de Thermodynamique et Physico-Chimie Métallurgiques, (associé C.N.R.S.) E.N.S.E.E.G., BP. 75, 38402, Saint Martin d’Hères, France

    C. H. Allibert

  2. CERMEP, 54 Av. Rhin et Danube, BP. 65X, 38041, Grenoble Cedex 9, France

    H. Pastor

Authors
  1. C. H. Allibert
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  2. H. Pastor
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Editor information

Editors and Affiliations

  1. Ministère de l’Economie, Finance et Industrie SQUALPI, 21, rue Monge, F-75005, Paris, France

    Jean-Pierre Caliste

  2. 47, Avenue du Clos Toutain, F-92420, Vaucresson, France

    Albert Truyol

  3. Brookline Technologies, 5, Brookline Road, 12020, Ballstone Spa, NY, USA

    Jack H. Westbrook

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© 1998 Springer-Verlag Berlin Heidelberg

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Allibert, C.H., Pastor, H. (1998). Thermodynamic Approach to the Design of New Cermets Processed by Liquid Phase Sintering. In: Caliste, JP., Truyol, A., Westbrook, J.H. (eds) Thermodynamic Modeling and Materials Data Engineering. Data and Knowledge in a Changing World. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-72207-3_26

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  • DOI: https://doi.org/10.1007/978-3-642-72207-3_26

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-72209-7

  • Online ISBN: 978-3-642-72207-3

  • eBook Packages: Springer Book Archive

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