Corrosion of High-Performance Ceramics

ISBN-13: 9783642773921 / Angielski / Miękka / 2011 / 181 str.

Yury G. Gogotsi; Vladimir A. Lavrenko; T. a. Maximova

Opis

"Corrosion of High-Performance Ceramics" is a comprehensive survey of the state of the art of this new field of research. It presents the first generalized description of the corrosion of engineering ceramics and its effect on their mechanical properties (based on Si3N4, SiC, AlN, B4C, BN, Al2O3, ZrO2). Researchers, engineers and graduate students are provided with a guide to the performance of non-oxide and oxide ceramicsin corrosive environments. Keywords: high-temperature oxidation; hot corrosion; corrosion in acids, alkalis and molten salts; effects of corrosion on the physico-mechanical properties of ceramics; stress corrosion; corrosion protection; development of oxidation-resistant ceramics; role of purity, donations and microstructure.

Spis treści

1. Introduction.- 2. Oxidation in Oxygen and Air.- 2.1 Silicon Nitride Ceramics.- 2.1.1 Thermodynamics of Si3N4 Oxidation.- 2.1.2 Composition of Oxide Layer.- 2.1.3 Effect of Phase and Chemical Composition of Ceramics.- 2.1.4 Oxidation of Porous Ceramics.- 2.1.5 Oxidation of Dense Ceramics.- 2.1.6 Peculiarities of Oxidation Kinetics.- 2.2 Silicon Carbide Ceramics.- 2.2.1 Thermodynamics of SiC Oxidation.- 2.2.2 Composition of Oxide Layer.- 2.2.3 Hot-Pressed and Sintered SiC.- 2.2.4 Self-Bonded and Recrystallized SiC.- 2.3 Aluminium Nitride Ceramics.- 2.4 Boron Carbide Ceramics.- 2.5 Boron Nitride Ceramics.- 2.6 Ceramic Matrix Composites.- 2.6.1 Nonoxide Matrix Composites.- 2.6.2 Oxide Matrix Composites.- 3. Gaseous Corrosion of Ceramics.- 3.1 Hot Corrosion.- 3.1.1 Silicon Nitride Ceramics.- 3.1.2 Silicon Carbide Ceramics.- 3.1.3 Oxide Ceramics.- 3.2 Water Vapour Corrosion.- 3.2.1 Nonoxide Ceramics.- 3.2.2 Zirconia Ceramics.- 3.3 Corrosion in Carbon Oxide Environments.- 3.4 Corrosion in Halogen- and Chalcogen-Containing Environments.- 4. Corrosion in Liquid Media.- 4.1 Corrosion in Solutions.- 4.1.1 Silicon Nitride Ceramics.- 4.1.2 Silicon Carbide Ceramics.- 4.1.3 Aluminium Nitride Ceramics.- 4.1.4 Boron Carbide Ceramics.- 4.1.5 Boron Nitride Ceramics.- 4.1.6 Oxide Ceramics.- 4.2 Molten Salt and Alkali Corrosion.- 5. Corrosion Effect on Ceramic Properties.- 5.1 Preoxidation of Ceramics.- 5.1.1 Silicon Nitride Ceramics.- 5.1.2 Silicon Carbide Ceramics.- 5.1.3 Aluminium Nitride Ceramics.- 5.1.4 Zirconia Ceramics.- 5.2 Effect of Corrosion in Different Environments.- 5.2.1 Hot Corrosion.- 5.2.2 Molten Salt Corrosion.- 5.2.3 Corrosion in Solutions.- 6. Mechanical Properties and Corrosion.- 6.1 Effect of Oxidation on Results of High-Temperature Mechanical Tests.- 6.1.1 Silicon Nitride Ceramics.- 6.1.2 Silicon Carbide Ceramics.- 6.1.3 Boron Carbide Ceramics.- 6.2 Effect of Salts on High-Temperature Strength.- 6.3 Failure of Ceramics Affected by Long-Term Mechanical Loading in Corrosive Environment.- 6.3.1 Silicon Nitride Ceramics.- 6.3.2 Silicon Carbide Ceramics.- 6.3.3 Alumina Ceramics.- 6.3.4 Zirconia Ceramics.- 6.3.5 Salt-Assisted Strength Degradation.- 6.3.6 Triboxidation.- 6.4 Lifetime Prediction in View of Environmental Effects.- 7. Corrosion Protection and Development of Corrosion-Resistant Ceramics.- 7.1 Chemical-Vapour Deposited Coatings.- 7.2 Sprayed and Sputtered Coatings.- 7.3 Impregnation and Other Methods of Protection.- 7.4 Choice of Optimum Ceramic Composition.- References.