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Boron carbide-titanium boride lightweight high-strength composite ceramic material and preparation method thereof
The invention provides a boron carbide-titanium boride lightweight high-strength composite ceramic material and a preparation method thereof. The boron carbide-titanium boride lightweight high-strength composite ceramic material is prepared from, by mass, 28.20-82.05% of boron carbide (B4C) powder, 8.20-32.75% of titanium carbide (TiC) powder and 9.75-39.05% of amorphous boron (B) powder through the following steps: weighing the titanium carbide powder and the amorphous boron powder, mixing the titanium carbide powder and the amorphous boron powder through a roller mixer, carrying out rotary evaporation, drying and sieving to obtain TiC-B mixed powder, placing the TiC-B mixed powder in a hot pressing sintering furnace, carrying out heat treatment to obtain primary B4C-TiB2 composite powder, weighing the primary B4C-TiB2 composite powder and boron carbide powder, carrying out ball-milling mixing on the powder through a planetary ball mill, carrying out rotary evaporation, drying and sieving to obtain B4C-TiB2 composite powder, placing the B4C-TiB2 composite powder in a graphite mold, and carrying out hot pressing sintering in a hot pressing furnace. According to the invention, the product has the advantages of good sinterability, fracture toughness and conductivity, capability of being processed through electric sparks, uniform TiB2 aggregate dispersion, controllable components, high bending strength and the like.
本发明提供一种碳化硼‑硼化钛轻质高强复合陶瓷材料及其制备方法，由如下组分及其质量百分比：碳化硼(B4C)粉28.20‑82.05％、碳化钛(TiC)粉8.20‑32.75％、无定型硼(B)粉9.75‑39.05％，经如下步骤制备而成：称取碳化钛粉和无定型硼粉；碳化钛粉和无定型硼粉通过滚筒混料机进行混合、旋转蒸发、烘干，过筛后得到TiC‑B混合粉体；将TiC‑B混合粉体置于热压烧结炉中热处理后获得初级B4C‑TiB2复合粉体；称取初级B4C‑TiB2复合粉体、碳化硼粉体；将粉体通过行星球磨机进行球磨混合、旋转蒸发、烘干，过筛后得到B4C‑TiB2复合粉体；将B4C‑TiB2复合粉体置于石墨模具中在热压炉中进行热压烧结。本发明产品具有良好的烧结性、断裂韧性、导电性，能通过电火花进行加工，TiB2团聚体分散均匀，组分可控，弯曲强度高等优点。
Boron carbide-titanium boride lightweight high-strength composite ceramic material and preparation method thereof
The invention provides a boron carbide-titanium boride lightweight high-strength composite ceramic material and a preparation method thereof. The boron carbide-titanium boride lightweight high-strength composite ceramic material is prepared from, by mass, 28.20-82.05% of boron carbide (B4C) powder, 8.20-32.75% of titanium carbide (TiC) powder and 9.75-39.05% of amorphous boron (B) powder through the following steps: weighing the titanium carbide powder and the amorphous boron powder, mixing the titanium carbide powder and the amorphous boron powder through a roller mixer, carrying out rotary evaporation, drying and sieving to obtain TiC-B mixed powder, placing the TiC-B mixed powder in a hot pressing sintering furnace, carrying out heat treatment to obtain primary B4C-TiB2 composite powder, weighing the primary B4C-TiB2 composite powder and boron carbide powder, carrying out ball-milling mixing on the powder through a planetary ball mill, carrying out rotary evaporation, drying and sieving to obtain B4C-TiB2 composite powder, placing the B4C-TiB2 composite powder in a graphite mold, and carrying out hot pressing sintering in a hot pressing furnace. According to the invention, the product has the advantages of good sinterability, fracture toughness and conductivity, capability of being processed through electric sparks, uniform TiB2 aggregate dispersion, controllable components, high bending strength and the like.
本发明提供一种碳化硼‑硼化钛轻质高强复合陶瓷材料及其制备方法，由如下组分及其质量百分比：碳化硼(B4C)粉28.20‑82.05％、碳化钛(TiC)粉8.20‑32.75％、无定型硼(B)粉9.75‑39.05％，经如下步骤制备而成：称取碳化钛粉和无定型硼粉；碳化钛粉和无定型硼粉通过滚筒混料机进行混合、旋转蒸发、烘干，过筛后得到TiC‑B混合粉体；将TiC‑B混合粉体置于热压烧结炉中热处理后获得初级B4C‑TiB2复合粉体；称取初级B4C‑TiB2复合粉体、碳化硼粉体；将粉体通过行星球磨机进行球磨混合、旋转蒸发、烘干，过筛后得到B4C‑TiB2复合粉体；将B4C‑TiB2复合粉体置于石墨模具中在热压炉中进行热压烧结。本发明产品具有良好的烧结性、断裂韧性、导电性，能通过电火花进行加工，TiB2团聚体分散均匀，组分可控，弯曲强度高等优点。
Boron carbide-titanium boride lightweight high-strength composite ceramic material and preparation method thereof
一种碳化硼-硼化钛轻质高强复合陶瓷材料及其制备方法
WANG WEIMIN (author) / HE QIANGLONG (author) / TIAN TIAN (author) / GUO WENCHAO (author)
2021-09-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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