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Graphene/boron carbide composite powder for hot pressed sintering, preparation method thereof and preparation method of ceramic product
The invention discloses graphene/boron carbide composite powder for hot pressed sintering, a preparation method thereof and a preparation method of a ceramic product, and belongs to the field of ceramic materials. Boron carbide powder, graphene oxide and syrup are used as raw materials; atomization granulation and precursor carbonization processes are carried out to obtain the spherical graphene oxide/boron carbide composite powder with uniform component composition; and hot pressed sintering is performed to obtain the graphene/boron carbide composite ceramic with good component structure uniformity. According to the preparation method of the graphene/boron carbide composite powder, all the components of the composite powder are mixed in proportion and subjected to wet grinding to obtain stably-dispersed slurry, spherical composite powder with uniform components is obtained through an atomization granulation process, the obtained atomization granulation powder is subjected to carbonization and hot pressed sintering in a vacuum environment, and a graphene/boron carbide composite ceramic product with uniformly-dispersed graphene is obtained. The problems of large component segregation, difficult process amplification and the like of the graphene/boron carbide composite powder are solved, and the preparation method is suitable for preparing the graphene/boron carbide composite ceramic material with an excellent performance through hot pressed sintering.
一种热压烧结用石墨烯/碳化硼复合粉末及其制备方法以及陶瓷产品的制备方法，属于陶瓷材料领域。本发明使用碳化硼粉末、氧化石墨烯、糖浆为原料，经过雾化造粒和前驱体碳化工艺，得到成分组成均匀的球形氧化石墨烯/碳化硼复合粉末，经过热压烧结后得到成分组织均匀性好的石墨烯/碳化硼复合陶瓷，石墨烯/碳化硼复合粉末制备方法，将复合粉末各组元按配比混合湿磨得到分散稳定的浆料，采用雾化造粒工艺得到组成成分均匀的球形复合粉末，将得到的雾化造粒粉末在真空环境下进行碳化和热压烧结，得到石墨烯分散均匀的石墨烯/碳化硼复合陶瓷产品。本发明解决了石墨烯/碳化硼复合粉末成分偏析大、工艺放大困难等问题，适用于热压烧结制备性能优异的石墨烯/碳化硼复合陶瓷材料。
Graphene/boron carbide composite powder for hot pressed sintering, preparation method thereof and preparation method of ceramic product
The invention discloses graphene/boron carbide composite powder for hot pressed sintering, a preparation method thereof and a preparation method of a ceramic product, and belongs to the field of ceramic materials. Boron carbide powder, graphene oxide and syrup are used as raw materials; atomization granulation and precursor carbonization processes are carried out to obtain the spherical graphene oxide/boron carbide composite powder with uniform component composition; and hot pressed sintering is performed to obtain the graphene/boron carbide composite ceramic with good component structure uniformity. According to the preparation method of the graphene/boron carbide composite powder, all the components of the composite powder are mixed in proportion and subjected to wet grinding to obtain stably-dispersed slurry, spherical composite powder with uniform components is obtained through an atomization granulation process, the obtained atomization granulation powder is subjected to carbonization and hot pressed sintering in a vacuum environment, and a graphene/boron carbide composite ceramic product with uniformly-dispersed graphene is obtained. The problems of large component segregation, difficult process amplification and the like of the graphene/boron carbide composite powder are solved, and the preparation method is suitable for preparing the graphene/boron carbide composite ceramic material with an excellent performance through hot pressed sintering.
一种热压烧结用石墨烯/碳化硼复合粉末及其制备方法以及陶瓷产品的制备方法，属于陶瓷材料领域。本发明使用碳化硼粉末、氧化石墨烯、糖浆为原料，经过雾化造粒和前驱体碳化工艺，得到成分组成均匀的球形氧化石墨烯/碳化硼复合粉末，经过热压烧结后得到成分组织均匀性好的石墨烯/碳化硼复合陶瓷，石墨烯/碳化硼复合粉末制备方法，将复合粉末各组元按配比混合湿磨得到分散稳定的浆料，采用雾化造粒工艺得到组成成分均匀的球形复合粉末，将得到的雾化造粒粉末在真空环境下进行碳化和热压烧结，得到石墨烯分散均匀的石墨烯/碳化硼复合陶瓷产品。本发明解决了石墨烯/碳化硼复合粉末成分偏析大、工艺放大困难等问题，适用于热压烧结制备性能优异的石墨烯/碳化硼复合陶瓷材料。
Graphene/boron carbide composite powder for hot pressed sintering, preparation method thereof and preparation method of ceramic product
一种热压烧结用石墨烯/碳化硼复合粉末及其制备方法以及陶瓷产品的制备方法
LIN WENSONG (author)
2020-11-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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