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Short carbon fiber-reinforced boron carbide composite material and preparation method thereof
The invention relates to a short carbon fiber-reinforced boron carbide composite material and a preparation method thereof. The composite material is prepared from the following components in percentage by volume: 80-99 vt.% of boron carbide and 1-20 vt.% of short carbon fibers. The preparation method comprises the following steps: weighing boron carbide powder and short carbon fibers according toa designed component ratio of the short boron carbide composite material, adding the boron carbide powder and the short carbon fibers into a deionized water solution containing polyethylene glycol, conducting uniform mixing, and carrying out drying treatment to obtain mixed powder; and then filling a graphite mold with the mixed powder, and carrying out spark plasma sintering to obtain the shortcarbon fiber-reinforced boron carbide composite material. The preparation method is simple in process; a prepared sample is high in compactness; toughness is improved to a certain extent on the basisof keeping certain strength; and in addition, the neutron absorption performance of the composite material can be better improved, and the composite material can be better used in a nuclear reactor shielding layer.
本发明涉及一种短碳纤维增强碳化硼复合材料及其制备方法。所述复合材料包括下述组分按体积百分比组成：碳化硼80‑99vt.％，短碳纤维1‑20vt.％；其制备方法包括：按设计的短碳化硼复合材料组份配比称取碳化硼粉和短碳纤维，将其加入含有聚乙二醇的去离子水溶液中，混合均匀，经干燥处理，得到混合粉末；然后将混合粉末装入石墨模具中，进行放电等离子烧结得到短碳纤维增强碳化硼复合材料。本发明制备工艺简单，制得样品密实度高，在保留一定强度的基础上同时又对韧性有一定的提升，此外还能够更好地提升复合材料的吸中子性能，能够更好地在核反应堆屏蔽层中使用。
Short carbon fiber-reinforced boron carbide composite material and preparation method thereof
The invention relates to a short carbon fiber-reinforced boron carbide composite material and a preparation method thereof. The composite material is prepared from the following components in percentage by volume: 80-99 vt.% of boron carbide and 1-20 vt.% of short carbon fibers. The preparation method comprises the following steps: weighing boron carbide powder and short carbon fibers according toa designed component ratio of the short boron carbide composite material, adding the boron carbide powder and the short carbon fibers into a deionized water solution containing polyethylene glycol, conducting uniform mixing, and carrying out drying treatment to obtain mixed powder; and then filling a graphite mold with the mixed powder, and carrying out spark plasma sintering to obtain the shortcarbon fiber-reinforced boron carbide composite material. The preparation method is simple in process; a prepared sample is high in compactness; toughness is improved to a certain extent on the basisof keeping certain strength; and in addition, the neutron absorption performance of the composite material can be better improved, and the composite material can be better used in a nuclear reactor shielding layer.
本发明涉及一种短碳纤维增强碳化硼复合材料及其制备方法。所述复合材料包括下述组分按体积百分比组成：碳化硼80‑99vt.％，短碳纤维1‑20vt.％；其制备方法包括：按设计的短碳化硼复合材料组份配比称取碳化硼粉和短碳纤维，将其加入含有聚乙二醇的去离子水溶液中，混合均匀，经干燥处理，得到混合粉末；然后将混合粉末装入石墨模具中，进行放电等离子烧结得到短碳纤维增强碳化硼复合材料。本发明制备工艺简单，制得样品密实度高，在保留一定强度的基础上同时又对韧性有一定的提升，此外还能够更好地提升复合材料的吸中子性能，能够更好地在核反应堆屏蔽层中使用。
Short carbon fiber-reinforced boron carbide composite material and preparation method thereof
一种短碳纤维增强碳化硼复合材料及其制备方法
ZENG FANHAO (author) / GU YI (author) / CHEN HUAN (author)
2020-11-06
Patent
Electronic Resource
Chinese
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