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Zirconium diboride-based ultra-high-temperature ceramic material as well as preparation method and preparation device thereof
The invention discloses a zirconium diboride-based ultra-high-temperature ceramic material as well as a preparation method and a preparation device thereof. The preparation method comprises the following steps: S1, preparing a zirconium diboride ceramic green body; s2, putting the zirconium diboride ceramic green body into a heating element, electrifying and sintering, wrapping the green body by the heating element, and preparing the heating element from a conductive material under the sintering conditions that a direct-current power supply outputs at constant power, the output power is 1300-2300W and the holding time is 10-90s, and then cutting off the power supply and naturally cooling. The heating element can be rapidly heated through high-power electrification, a high-temperature thermal field is formed between the upper surface and the lower surface of the heating element, heat is conducted into the green body through thermal radiation, so that the green body is sintered, densification is completed, the effect that the compact ultrahigh-temperature ceramic is prepared within a short sintering period at an extremely high heating rate is achieved, and the service life of the ceramic is prolonged. The traditional sintering mode of high energy consumption and long time consumption of ultrahigh-temperature ceramic sintering is broken through, and large-batch production can be carried out in an extremely short period.
本发明公开了一种二硼化锆基超高温陶瓷材料及其制备方法和制备装置，S1，制备二硼化锆陶瓷坯体；S2，将二硼化锆陶瓷坯体放入加热元件中通电进行烧结，加热元件将坯体包裹，加热元件由导电材料制成，烧结条件为：直流电源恒功率输出，输出功率为1300～2300W，保持时间10～90s，然后断开电源自然冷却。加热元件经过大功率通电就可快速升温，加热元件上下面之间就形成高温温场，通过热辐射把热量传导到坯体中，使得坯体烧结，从而完成致密化，实现了极快的升温速率，在较短的烧结周期内制得致密的超高温陶瓷，打破了超高温陶瓷烧结耗能多、耗时长的传统烧结模式，能够在极短周期内进行大批量生产。
Zirconium diboride-based ultra-high-temperature ceramic material as well as preparation method and preparation device thereof
The invention discloses a zirconium diboride-based ultra-high-temperature ceramic material as well as a preparation method and a preparation device thereof. The preparation method comprises the following steps: S1, preparing a zirconium diboride ceramic green body; s2, putting the zirconium diboride ceramic green body into a heating element, electrifying and sintering, wrapping the green body by the heating element, and preparing the heating element from a conductive material under the sintering conditions that a direct-current power supply outputs at constant power, the output power is 1300-2300W and the holding time is 10-90s, and then cutting off the power supply and naturally cooling. The heating element can be rapidly heated through high-power electrification, a high-temperature thermal field is formed between the upper surface and the lower surface of the heating element, heat is conducted into the green body through thermal radiation, so that the green body is sintered, densification is completed, the effect that the compact ultrahigh-temperature ceramic is prepared within a short sintering period at an extremely high heating rate is achieved, and the service life of the ceramic is prolonged. The traditional sintering mode of high energy consumption and long time consumption of ultrahigh-temperature ceramic sintering is broken through, and large-batch production can be carried out in an extremely short period.
本发明公开了一种二硼化锆基超高温陶瓷材料及其制备方法和制备装置，S1，制备二硼化锆陶瓷坯体；S2，将二硼化锆陶瓷坯体放入加热元件中通电进行烧结，加热元件将坯体包裹，加热元件由导电材料制成，烧结条件为：直流电源恒功率输出，输出功率为1300～2300W，保持时间10～90s，然后断开电源自然冷却。加热元件经过大功率通电就可快速升温，加热元件上下面之间就形成高温温场，通过热辐射把热量传导到坯体中，使得坯体烧结，从而完成致密化，实现了极快的升温速率，在较短的烧结周期内制得致密的超高温陶瓷，打破了超高温陶瓷烧结耗能多、耗时长的传统烧结模式，能够在极短周期内进行大批量生产。
Zirconium diboride-based ultra-high-temperature ceramic material as well as preparation method and preparation device thereof
一种二硼化锆基超高温陶瓷材料及其制备方法和制备装置
QIAO ZHONGKANG (author) / WANG FUHAO (author) / WU WUYI (author) / YAN GAOSHENG (author) / HU SHULING (author) / SHEN SHENGPING (author)
2024-10-22
Patent
Electronic Resource
Chinese
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