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Abstract The oxidation behaviour in air of a hot-pressed ZrB 2 –SiC–Cf composite was investigated. Tests from 25 to 1550 °C in air were carried out at a rate of 10 °C/min… Click to show full abstract
Abstract The oxidation behaviour in air of a hot-pressed ZrB 2 –SiC–Cf composite was investigated. Tests from 25 to 1550 °C in air were carried out at a rate of 10 °C/min and 45 °C/min. Then, 6 h isothermal runs were conducted in air at 800, 1000, 1200, 1400 °C, after heating the samples in argon at 30 °C/min. Below 1000 °C the kinetics was dominated by an exponential weight loss due to fibre consumption. Above 1000 °C, weight loss started to be significantly counterbalanced by weight gain due to the formation of a layer of SiO 2 and B 2 O 3. Kinetic parameters were evaluated.
Journal Title: Corrosion Science
Year Published: 2017
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