Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Preparation method of ultrahigh-temperature ceramic material
The invention relates to the technical field of ultrahigh-temperature ceramic materials, in particular to a preparation method of an ultrahigh-temperature ceramic material, which comprises the following steps: uniformly mixing silicon-yttrium alloy powder I with zirconium boride and graphite to obtain initial powder; carrying out ball milling treatment on the initial powder in an inert atmosphere, and then carrying out molding processing to prepare a ceramic biscuit material; and the ceramic biscuit material and the silicon yttrium alloy powder II are subjected to reactive melt infiltration at the temperature of 1200-1500 DEG C, and the ZrB2-YSi2-SiC ultra-high-temperature ceramic material is obtained. The high-density ultrahigh-temperature ceramic material is prepared by adopting a reactive melt infiltration method, and in a high-temperature service environment, the dual-doped modified ZrB2 ceramic forms a compact oxide layer under a high-temperature oxidation condition, so that the oxidation corrosion resistance of the material is improved.
本发明涉及超高温陶瓷材料技术领域，具体涉及一种超高温陶瓷材料的制备方法，包括以下步骤：将硅钇合金粉体I与硼化锆、石墨均匀混合，得到初始粉末；在惰性气氛下，对初始粉末进行球磨处理，然后进行成型加工，制得陶瓷素坯材料；将陶瓷素坯材料与硅钇合金粉体II在1200～1500℃下进行反应熔体浸渗，得到ZrB2‑YSi2‑SiC超高温陶瓷材料。本发明采用反应熔体浸渗的方法制备高致密超高温陶瓷材料，在高温服役环境下，双元掺杂改性ZrB2陶瓷在高温氧化条件下形成致密氧化层，以期提高材料的抗氧化腐蚀性能。
Preparation method of ultrahigh-temperature ceramic material
The invention relates to the technical field of ultrahigh-temperature ceramic materials, in particular to a preparation method of an ultrahigh-temperature ceramic material, which comprises the following steps: uniformly mixing silicon-yttrium alloy powder I with zirconium boride and graphite to obtain initial powder; carrying out ball milling treatment on the initial powder in an inert atmosphere, and then carrying out molding processing to prepare a ceramic biscuit material; and the ceramic biscuit material and the silicon yttrium alloy powder II are subjected to reactive melt infiltration at the temperature of 1200-1500 DEG C, and the ZrB2-YSi2-SiC ultra-high-temperature ceramic material is obtained. The high-density ultrahigh-temperature ceramic material is prepared by adopting a reactive melt infiltration method, and in a high-temperature service environment, the dual-doped modified ZrB2 ceramic forms a compact oxide layer under a high-temperature oxidation condition, so that the oxidation corrosion resistance of the material is improved.
本发明涉及超高温陶瓷材料技术领域，具体涉及一种超高温陶瓷材料的制备方法，包括以下步骤：将硅钇合金粉体I与硼化锆、石墨均匀混合，得到初始粉末；在惰性气氛下，对初始粉末进行球磨处理，然后进行成型加工，制得陶瓷素坯材料；将陶瓷素坯材料与硅钇合金粉体II在1200～1500℃下进行反应熔体浸渗，得到ZrB2‑YSi2‑SiC超高温陶瓷材料。本发明采用反应熔体浸渗的方法制备高致密超高温陶瓷材料，在高温服役环境下，双元掺杂改性ZrB2陶瓷在高温氧化条件下形成致密氧化层，以期提高材料的抗氧化腐蚀性能。
Preparation method of ultrahigh-temperature ceramic material
一种超高温陶瓷材料的制备方法
LIU YONGSHENG (Autor:in) / ZHANG BINGHUI (Autor:in) / CAO YEJIE (Autor:in) / LYU YUNLEI (Autor:in) / DONG NING (Autor:in) / WANG JING (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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