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Method for sintering boron carbide-titanium boride material through spark plasma reaction
The invention belongs to the field of material preparation, and particularly relates to a method for sintering a boron carbide-titanium boride material through spark plasma reaction. Amorphous boron powder, titanium powder and graphite powder are adopted as raw materials, and the boron carbide-titanium boride material is obtained through spark plasma sintering. According to the method, the amorphous boron powder, the titanium powder and the graphite powder react in the sintering process to synthesize a required phase, the sintering densification temperature can be effectively reduced, the material microstructure is more uniform, meanwhile, the raw material cost can be reduced, and integration of the phase synthesis process and the densification process is achieved. The prepared ceramic material has ultrahigh hardness and good fracture toughness on the basis of guaranteeing basic complete compactness, the compactness is 98.46 +/-0.03%, the Vickers hardness is 25.69 +/-1.49 GPa, and thefracture toughness is 7.39 +/-0.88 MPa.m < 1/2 >.
本发明属于材料制备领域，具体涉及一种放电等离子反应烧结碳化硼‑硼化钛材料的方法。采用无定形的硼粉、钛粉以及石墨粉为原料，经过放电等离子烧结得到碳化硼‑硼化钛材料。本发明的制备方法，采用烧结过程中无定形的硼粉、钛粉以及石墨粉间发生反应，合成所需物相，能有效降低烧结致密化温度，材料微观组织更加均匀的同时可以降低原料成本，实现物相合成和致密化过程的一体化。本发明制备的陶瓷材料在保证基本完全致密的基础上，具有超高硬度以及良好的断裂韧性，致密度为98.46±0.03％，维氏硬度为25.69±1.49GPa，断裂韧性为7.39±0.88MPa.m。
Method for sintering boron carbide-titanium boride material through spark plasma reaction
The invention belongs to the field of material preparation, and particularly relates to a method for sintering a boron carbide-titanium boride material through spark plasma reaction. Amorphous boron powder, titanium powder and graphite powder are adopted as raw materials, and the boron carbide-titanium boride material is obtained through spark plasma sintering. According to the method, the amorphous boron powder, the titanium powder and the graphite powder react in the sintering process to synthesize a required phase, the sintering densification temperature can be effectively reduced, the material microstructure is more uniform, meanwhile, the raw material cost can be reduced, and integration of the phase synthesis process and the densification process is achieved. The prepared ceramic material has ultrahigh hardness and good fracture toughness on the basis of guaranteeing basic complete compactness, the compactness is 98.46 +/-0.03%, the Vickers hardness is 25.69 +/-1.49 GPa, and thefracture toughness is 7.39 +/-0.88 MPa.m < 1/2 >.
本发明属于材料制备领域，具体涉及一种放电等离子反应烧结碳化硼‑硼化钛材料的方法。采用无定形的硼粉、钛粉以及石墨粉为原料，经过放电等离子烧结得到碳化硼‑硼化钛材料。本发明的制备方法，采用烧结过程中无定形的硼粉、钛粉以及石墨粉间发生反应，合成所需物相，能有效降低烧结致密化温度，材料微观组织更加均匀的同时可以降低原料成本，实现物相合成和致密化过程的一体化。本发明制备的陶瓷材料在保证基本完全致密的基础上，具有超高硬度以及良好的断裂韧性，致密度为98.46±0.03％，维氏硬度为25.69±1.49GPa，断裂韧性为7.39±0.88MPa.m。
Method for sintering boron carbide-titanium boride material through spark plasma reaction
一种放电等离子反应烧结碳化硼-硼化钛材料的方法
YIN ZENGBIN (author) / WANG SHUO (author) / YUAN JUNTANG (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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