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Three ZrB 2 –SiC composites were prepared from polycarbosilane (PCS)-coated ZrB 2 powders. Powders with or without additions of Si or Zr were densified by hot pressing at 1800°C. Finally, the oxidation resistance of the composites was studied at 1500°C in air. The phase composition and microstructure were characterized using X-ray diffraction (XRD) and scanning electron microscopy...
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