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Hot-pressed liquid-phase sintered boron carbide composite ceramic and preparation method thereof
The invention provides hot-pressed liquid-phase sintered boron carbide composite ceramic and a preparation method thereof.The preparation method comprises the following steps that raw materials are weighed, and the raw materials comprise, by mass, 69-81 wt% of boron carbide powder, 6-10 wt% of titanium carbide powder, 8-10 wt% of a sintering aid, 0.3-0.5 wt% of a dispersing agent, 3-5 wt% of a binder and 2-5 wt% of a plasticizer; uniformly mixing the raw materials, and performing spray granulation; the preparation method comprises the following steps: pre-pressing into a green body, and carrying out hot pressed sintering at the sintering temperature of 1840-1900 DEG C under the sintering pressure of 25-30 MPa to obtain the boron carbide composite ceramic. According to the preparation method, a process scheme of in-situ reaction and hot-pressed sintering of the liquid-phase sintering aid is adopted, the preparation method has the advantages of simplicity and convenience in operation, low production cost and high efficiency, the in-situ reaction and the liquid-phase hot-pressed sintering are synergistically reinforced, the high-strength and high-performance boron carbide composite ceramic can be prepared, and the preparation method has a very good application prospect.
本发明提供了一种热压液相烧结碳化硼复合陶瓷及其制备方法，所述制备方法包括以下步骤：称取原料，按质量百分数计包括：碳化硼粉69‑81wt％、碳化钛粉6‑10wt％、烧结助剂8‑10wt％、分散剂0.3‑0.5wt％、粘结剂3‑5wt％、增塑剂2‑5wt％；将原料混合均匀，喷雾造粒；预压成生坯，热压烧结得到碳化硼复合陶瓷，烧结温度为1840‑1900℃，烧结压力为25‑30MPa。本发明采用原位反应配合液相烧结助剂热压烧结的工艺方案，具有操作简便、生产成本低、效率高的优点，原位反应及液相热压烧结协同强化，可以制得高强度、高性能的碳化硼复合陶瓷，具有很好的应用前景。
Hot-pressed liquid-phase sintered boron carbide composite ceramic and preparation method thereof
The invention provides hot-pressed liquid-phase sintered boron carbide composite ceramic and a preparation method thereof.The preparation method comprises the following steps that raw materials are weighed, and the raw materials comprise, by mass, 69-81 wt% of boron carbide powder, 6-10 wt% of titanium carbide powder, 8-10 wt% of a sintering aid, 0.3-0.5 wt% of a dispersing agent, 3-5 wt% of a binder and 2-5 wt% of a plasticizer; uniformly mixing the raw materials, and performing spray granulation; the preparation method comprises the following steps: pre-pressing into a green body, and carrying out hot pressed sintering at the sintering temperature of 1840-1900 DEG C under the sintering pressure of 25-30 MPa to obtain the boron carbide composite ceramic. According to the preparation method, a process scheme of in-situ reaction and hot-pressed sintering of the liquid-phase sintering aid is adopted, the preparation method has the advantages of simplicity and convenience in operation, low production cost and high efficiency, the in-situ reaction and the liquid-phase hot-pressed sintering are synergistically reinforced, the high-strength and high-performance boron carbide composite ceramic can be prepared, and the preparation method has a very good application prospect.
本发明提供了一种热压液相烧结碳化硼复合陶瓷及其制备方法，所述制备方法包括以下步骤：称取原料，按质量百分数计包括：碳化硼粉69‑81wt％、碳化钛粉6‑10wt％、烧结助剂8‑10wt％、分散剂0.3‑0.5wt％、粘结剂3‑5wt％、增塑剂2‑5wt％；将原料混合均匀，喷雾造粒；预压成生坯，热压烧结得到碳化硼复合陶瓷，烧结温度为1840‑1900℃，烧结压力为25‑30MPa。本发明采用原位反应配合液相烧结助剂热压烧结的工艺方案，具有操作简便、生产成本低、效率高的优点，原位反应及液相热压烧结协同强化，可以制得高强度、高性能的碳化硼复合陶瓷，具有很好的应用前景。
Hot-pressed liquid-phase sintered boron carbide composite ceramic and preparation method thereof
一种热压液相烧结碳化硼复合陶瓷及其制备方法
CHENG XIANGQIAN (author) / XIE FANGMIN (author) / HONG YUZHE (author) / WU GUOPING (author) / GUO DAIDONG (author) / XIONG LIJUN (author) / YU MINGLIANG (author) / QI MINGJIE (author) / CAI NINGNING (author) / YANG LIANJIANG (author)
2022-06-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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