Preface | p. xi |
Symbols | p. xiii |
Introduction: the variety of ceramic systems | |
Introduction | p. 1 |
From traditional to advanced ceramics | p. 1 |
Structural and refractory applications of engineering ceramics | p. 2 |
Electroceramics | p. 10 |
High-temperature oxide superconductors | p. 10 |
Conventional routes to ceramics | |
Introduction | p. 17 |
Precipitation from solution | p. 17 |
Powder mixing techniques | p. 19 |
Fusion routes to ceramics | p. 20 |
The need for improved synthetic routes to advanced ceramics | p. 22 |
Ceramic fabrication | |
Introduction | p. 23 |
Solid-state sintering | p. 23 |
Uniaxial pressing | p. 25 |
Hot uniaxial pressing | p. 26 |
Isostatic pressing | p. 26 |
Reaction-bonding | p. 27 |
Slip casting | p. 28 |
Injection molding | p. 28 |
Strength and toughness in ceramic systems | p. 29 |
Sol-gel processing of colloids | |
Introduction | p. 33 |
The nature of colloids | p. 33 |
The stability of colloids | p. 34 |
Sol formation through cation hydrolysis | p. 39 |
Outline of the sol-gel process for colloids | p. 40 |
Sol-gel in the nuclear industry | p. 42 |
Gel precipitation in the nuclear industry | p. 44 |
Industrial applications of sol-gel processing | p. 44 |
Summary | p. 56 |
Sol-gel processing of metal-organic compounds | |
Introduction | p. 58 |
The synthesis of metal alkoxides | p. 58 |
The physical properties of alkoxides | p. 60 |
Outline of the sol-gel process for alkoxides | p. 62 |
Development of the sol-gel process for alkoxides | p. 63 |
Alkoxide-derived coatings | p. 75 |
Monodispersed sub-micrometre oxide powders | p. 82 |
Organically modified silicates | p. 87 |
Summary | p. 88 |
Non-aqueous liquid-phase reactions | |
Introduction | p. 89 |
The reaction between silicon tetrachloride and ammonia in the liquid phase | p. 89 |
General reactions of chlorosilanes with ammonia and amines | p. 95 |
Synthesis of non-oxide ceramics other than silicon nitride using liquid-phase reactions | p. 96 |
Summary | p. 98 |
Polymer Pyrolysis | |
Introduction | p. 99 |
Synthesis of polysilanes | p. 99 |
The polysilane-polycarbosilane conversion | p. 101 |
[beta]-Silicon carbide fibres from polycarbosilanes | p. 103 |
Polysilastyrene | p. 107 |
Nitride and oxynitride fibres by polymer pyrolysis | p. 108 |
Composites, monoliths and coatings derived from polymer pyrolysis | p. 111 |
Summary | p. 113 |
Hydrothermal synthesis of ceramic powders | |
Introduction | p. 114 |
Forced hydrolysis of solutions at elevated temperatures and pressures | p. 114 |
Hydrothermal reactions using salt solutions | p. 115 |
Hydrothermal reactions involving phase transformations | p. 120 |
Hydrothermal reactions using metal reactants | p. 123 |
Summary | p. 123 |
Gas-phase reactions | |
Introduction | p. 124 |
Gas-phase nucleation | p. 124 |
Flame-hydrolysed powders | p. 127 |
Direct nitridation and carbothermic reduction | p. 128 |
Non-plasma gas-phase reactions | p. 131 |
Plasma reactions | p. 136 |
The silicon-sulphur-nitrogen system | p. 139 |
Electron-beam evaporation | p. 141 |
Summary | p. 142 |
Miscellaneous synthetic routes to ceramic materials | |
Introduction | p. 143 |
The citrate gel process | p. 143 |
Pyrolysis of metal alkoxides | p. 144 |
Rapid expansion of supercritical solutions | p. 145 |
Freeze-drying | p. 146 |
Determination of particle size | |
Introduction | p. 148 |
Gas adsorption | p. 148 |
X-ray line broadening | p. 150 |
Transmission electron microscopy | p. 150 |
Scanning electron microscopy | p. 150 |
Light scattering | p. 151 |
Small-angle X-ray and neutron scattering | p. 153 |
Sedimentation methods | p. 154 |
Chromatographic methods | p. 155 |
Sieving | p. 155 |
References | p. 156 |
Index | p. 180 |
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