Easy-to-sinter titanium and tungsten co-doped zirconium carbide powder and preparation method thereof

The invention relates to the technical field of ultrahigh-temperature ceramics, in particular to easy-to-sinter titanium and tungsten co-doped zirconium carbide powder and a preparation method thereof. The chemical formula of the easy-to-sinter titanium and tungsten co-doped zirconium carbide powder...

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Bibliographische Detailangaben
Hauptverfasser: LI ZHENG, ZHANG HEJUN, LIN YANG, YANG HUANSHUN, WU SHIJIANG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to the technical field of ultrahigh-temperature ceramics, in particular to easy-to-sinter titanium and tungsten co-doped zirconium carbide powder and a preparation method thereof. The chemical formula of the easy-to-sinter titanium and tungsten co-doped zirconium carbide powder is ZrTiWyC, x is larger than 0 and smaller than or equal to 0.05, and y is larger than 0and smaller than or equal to 0.05. The preparation method comprises the following steps: subjecting ZrO2, TiO2, WO3 and carbon black which are adopted as raw materials to high-temperature carbon thermal reduction reaction under the protection of vacuum or argon to prepare the titanium and tungsten co-doped zirconium carbide powder. The titanium and tungsten co-doped zirconium carbide powder easy to sinter is small in grain size, low in oxygen content, high in phase purity, high in sintering activity and wide in application range, and can be used as a raw material for pressureless sintering ofa zirconium carbide body mate