Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Method for preparing high-strength superhard boride-carbide complex-component ceramic and application of high-strength superhard boride-carbide complex-component ceramic
The invention discloses a method for preparing high-strength superhard boride-carbide complex component ceramic and application, and belongs to the technical field of ceramic materials. The invention aims to prepare the high-strength superhard boride-carbide complex component ceramic with a wide component range by directly mixing transition metal, boron powder and carbon powder. The method comprises the following steps: 1, preparing composite powder; and 2, putting the fully mixed composite powder into a mold, and then putting the mold into a discharge plasma sintering furnace for sintering to obtain the high-strength superhard boride-carbide complex component ceramic. The grain size of the prepared high-strength superhard boride-carbide complex component ceramic is smaller, and meanwhile the strength and hardness are remarkably improved. The room temperature hardness is 32 to 36 GPa, the three-point bending strength is 600 to 800 MPa, and the fracture toughness is 6 to 7 MPa.m < 1/2 >. According to the invention, the high-strength superhard boride-carbide complex component ceramic can be obtained.
一种制备高强超硬硼化物‑碳化物复杂成分陶瓷的方法和应用，它属于陶瓷材料技术领域。本发明旨在通过过渡金属、硼粉和碳粉直接混合制备宽成分范围的高强超硬的硼化物‑碳化物复杂成分陶瓷。方法：一、制备复合粉体；二、将充分混合的复合粉体置于模具中，再放入放电等离子烧结炉内进行烧结，得到高强超硬硼化物‑碳化物复杂成分陶瓷。本发明制备的高强超硬硼化物‑碳化物复杂成分陶瓷的晶粒尺寸更加细小，同时强度和硬度均得到显著提升。室温硬度为32～36GPa，三点弯曲强度为600～800MPa，断裂韧性为6～7MPa·m1/2。本发明可获得一种高强超硬硼化物‑碳化物复杂成分陶瓷。
Method for preparing high-strength superhard boride-carbide complex-component ceramic and application of high-strength superhard boride-carbide complex-component ceramic
The invention discloses a method for preparing high-strength superhard boride-carbide complex component ceramic and application, and belongs to the technical field of ceramic materials. The invention aims to prepare the high-strength superhard boride-carbide complex component ceramic with a wide component range by directly mixing transition metal, boron powder and carbon powder. The method comprises the following steps: 1, preparing composite powder; and 2, putting the fully mixed composite powder into a mold, and then putting the mold into a discharge plasma sintering furnace for sintering to obtain the high-strength superhard boride-carbide complex component ceramic. The grain size of the prepared high-strength superhard boride-carbide complex component ceramic is smaller, and meanwhile the strength and hardness are remarkably improved. The room temperature hardness is 32 to 36 GPa, the three-point bending strength is 600 to 800 MPa, and the fracture toughness is 6 to 7 MPa.m < 1/2 >. According to the invention, the high-strength superhard boride-carbide complex component ceramic can be obtained.
一种制备高强超硬硼化物‑碳化物复杂成分陶瓷的方法和应用，它属于陶瓷材料技术领域。本发明旨在通过过渡金属、硼粉和碳粉直接混合制备宽成分范围的高强超硬的硼化物‑碳化物复杂成分陶瓷。方法：一、制备复合粉体；二、将充分混合的复合粉体置于模具中，再放入放电等离子烧结炉内进行烧结，得到高强超硬硼化物‑碳化物复杂成分陶瓷。本发明制备的高强超硬硼化物‑碳化物复杂成分陶瓷的晶粒尺寸更加细小，同时强度和硬度均得到显著提升。室温硬度为32～36GPa，三点弯曲强度为600～800MPa，断裂韧性为6～7MPa·m1/2。本发明可获得一种高强超硬硼化物‑碳化物复杂成分陶瓷。
Method for preparing high-strength superhard boride-carbide complex-component ceramic and application of high-strength superhard boride-carbide complex-component ceramic
一种制备高强超硬硼化物-碳化物复杂成分陶瓷的方法和应用
HUO SIJIA (Autor:in) / MAO MINGXUAN (Autor:in) / CHEN LEI (Autor:in) / WANG YUJIN (Autor:in) / ZHOU YU (Autor:in)
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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