Mullite

  • ID: 2183031
  • Book
  • 509 Pages
  • John Wiley and Sons Ltd
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Mullite is certainly one of the most important ceramic materials, although it occurs only rarely in natural rocks. Mullite is a main constituent of potteries, porcelains, sanitary ceramics, refractories and of structural clay products. Besides its importance for conventional ceramics, mullite is a strong candidate material for advanced structural and functional ceramics and for composites. Reasons for the importance of mullite are its outstanding properties: low thermal expansion, low thermal and electrical conductivities, excellent creep resistance and stability in harsh high temperature environments.

Besides its importance for ceramics, mullite has also attracted interest from mineralogists and chemists. This is due to the fact that mullite has a complex real crystal structure, the phase is able to incorporate big amounts of foreign atoms, and that there exists a whole family of mullite–type crystal structures related to actual mullite. The crystal chemistry of mullite opens a wide field of new material developments with specific properties.

This volume gives an overview on the recent knowledge of mullite, mullite ceramics, and mullite matrix composites. It was an important aim of the authors to bring together the expertise of crystallographers, chemists, material scientists and of engineers in order to achieve a better understanding and an improvement of the properties of mullite, but also to identify new application fields of these materials.

The book addresses materials scientists, solid state chemists and physicists, crystallographers and mineralogists alike.
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GENERAL INTRODUCTION

CRYSTAL CHEMISTRY OF MULLITE AND RELATED PHASES

The mullite–type family of crystal structures

The real structure of mullite

Foreign atom incorporation in mullite

Mullite–type gels and glasses

BASIC PROPERIES OF MULLITE

Mechanical properties of mullite

Thermal properties of mullite

Miscelllaneous properties

Structure–controlled formation of mullite

Phase transformation of mullite

Spectroscopic data

PHASE EQUILIBRIA AND STABILITY OF MULLITE

The Al2O3–SiO2 phase diagram

Influence of environmental conditions on the stability of mullite

Ternary X–Al2O3–SiO2 phase diagrams

SYNTHESIS AND PROCESSING OF MULLITE CERAMICS

Mullite synthesis

Processing of mullite ceramics

Mechanical properties

Thermal properties

Miscellaneous properties

Application of mullite ceramics

MULLITE COATINGS

Chemical gas phase deposited mullite coatings

Plasma and flame sprayed mullite coatings

Application of mullite coatings

MULLITE FIBERS

Mullite whiskers

Sol–gel derived continuous mullite fibers

Melt grown continuous mullite fibers

MULLITE MATRIX COMPOSITES

Whisker reinforced mullitematrix composites

Continuous fiber reinforced mullite matrix composites

Platelet and particle reinforced composites

Metal reinforced mullite composites

Applications of mullite composites
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"This new book is a detailed survey of this important engineering material ... In this book the reader will find an comprehensive overview on the recent knowledge of mullite."

Metall

"ein neueres zusammenfassendes Werk fehlte...bisher. ...Das Buch sollte in keiner technisch–mineralogischen bzw. werkstoffwissenschaftlichen Bibliothek fehlen."

Der Aufschluss

03/2008
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