Corrosion of Ceramic and Composite Materials Part 5 pps

... with XRD and optical microscopy is a powerful tool in the evaluation of corrosion. See Fig. 5. 3, which shows optical, SEM/EDS, and XRD data for the corrosion of a mullite refractory, and the corresponding ... the manufacturers of consumable grinding and polishing supplies. One particular article that offers some new ideas was that of Damgaard and Geels [3 .5] . They emp...

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... Gases 201 5. 2.1 Oxides 202 5. 2.2 Nitrides and Carbides 209 5. 2.3 Borides 231 5. 2.4 Silicides 233 5. 2 .5 Superconductors 234 5. 3 Attack by Solids 234 5. 3.1 Silica 234 5. 3.2 Magnesia 2 35 5.3.3 Superconductors ... Superconductors 2 35 5.3.4 Attack by Metals 236 5. 4 Additional Related Reading 237 5. 5 Exercises, Questions, and Problems 238 References 238 6 CORROSION...

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... continued reaction. The reduction of oxide ceramics at various partial pressures of oxygen may also be of interest and can be obtained from the examination of Ellingham plots of ∆G°=-RT In pO 2 vs. temperature ... approach to the corrosion of glasses, especially applied to nuclear waste glass leachability. The earlier work of Newton and Paul [2.72] on a wide variety of...

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... of formation of the products. An example of the comparison of free energy of reaction and the enthalpy of reaction at several temperatures is given below for the reaction of alumina and silica ... kinetics of a reaction is on the order of 100– 150 °C. This range covers only about 10–20% of the total reaction and leads to excessive scatter in the calculated values of...

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... to evaluate the corrosion resistance of various ceramic materials. These various tests have been listed in Tables 4.1 and 4.2 and can be found in the Annual Book of ASTM Standards, volumes 2. 05, 4.01, ... 4.02, 4. 05, 12.01, 14.04, 15. 01, and 15. 02. A brief summary of each of these is given below. Standards that are in the process of being developed have not been list...

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... 19, 213–220. 6 .51 . Sieger, J.S.; Parsons, J.M. Tin penetration profiles in float glass. Am. Cer. Soc. Bull. 1974, 53 (4), 350 ; Abstract of a 257 6 Corrosion of Specific Glassy Materials Perhaps ... the bottom surface of float glass—a synthesis. J. Non-Cryst. Solids 1980, 38–39 (Pt II), 55 1 55 6. 6.47. Kondrashov, V.; Bezlyudnaya, V.; Zverev, Y. Effect of regimes and meth...

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... Metcalfe and Chap. 5, Silicon Carbide, page 223, at low partial pressures of Corrosion of Composites Materials 301 itself through the oxidation of the interface between the fiber reinforcement and ... Ceram. Soc 1982, 65 (5) , 2 65 269. Corrosion of Composites Materials 317 above 50 0°C forming A1 4 C 3 [7.77]. This phase formed as hexagonal plates with subsequent degr...

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... Westerville, OH, 19 95; 1–34. Advanced Synthesis and Processing of Composites and Advanced Ceramics; Logan K.V. Ed.; Ceramic Transactions. Am. Ceram. Soc. Westerville, OH, 19 95; Vol. 56 . Evans, A.G.; ... nitride whisker synthesis and their use in alumina composites. In Advanced Synthesis and Processing of Composites and Advanced Ceramics, Ceramic Transactions; Logan, K.V....

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... 1967, 50 (8), 407–414. 8.14. Wiederhorn, S.M.; Bolz, L.H. Stress corrosion and static fatigue of glass. J. Am. Ceram. Soc. 1970, 53 (10), 54 3 54 8. 8. 15. Wiederhorn, S.M.; Johnson, H. Effect of electrolyte ... part of the concept of improvement through chemistry changes is that of improving resistance to corrosion of the bonding phases. Bonding phases normally have a...

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... liquid will condense. A form of atmospheric corrosion and equivalent to condensation corrosion. Dissolution Corrosion The corrosion of a ceramic through the solution of its various components into ... 1497– 150 5. 9.8. Davies, G.B.; Holmes, T.M.; Gregory, O.J. Hot corrosion behavior of coated covalent ceramics. Adv. Ceram. Mater. 1988, 3 (6), 54 2 54 7. 9.9. Gogotsi, Yu...

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