Effects of temperature and the incorporation of W on the oxidation of ZrB2 ceramics
Source abstract
Abstract
Abstract The effects of tungsten additions and temperature on the oxidation behavior of nominally pure ZrB 2 and ZrB 2 containing 4, 6 or 8 mol% of W after oxidation at temperatures ranging from 800 to 1600 °C were investigated. For pure ZrB 2 , the protective liquid/glassy layer covering the surface as a result of oxidation was evaporated above 1500 °C. For (Zr,W)B 2 specimens, the liquid/glassy layer was present after exposure up to 1600 °C. The higher stability of the liquid/glassy phase in the W-containing compositions was attributed to the presence of tungsten in the liquid/glassy phase, resulting in improved oxidation resistance for ZrB 2 samples containing W.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Nuclear materials and radiation effects
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