Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength high-thermal-conductivity graphite ceramic composite material and preparation method thereof
The invention discloses a preparation method of a high-strength and high-thermal-conductivity graphite ceramic composite material. The graphite ceramic composite material is composed of graphite powder, a silicon carbide enhanced network and glassy carbon. The silicon carbide enhanced network is composed of a dendritic-imitated silicon carbide network and a regular silicon carbide network. The preparation process of the high-strength and high-thermal-conductivity graphite ceramic composite material comprises the process links of powder mixing, layer unit micro hot pressing forming, interlayer exhaust network construction, multiple times of repeating, pressure maintaining curing, rapid carbonization, multiple times of dipping strengthening, high-temperature sintering and the like. The preparation method of the high-strength and high-thermal-conductivity graphite ceramic composite material has the advantages of low energy consumption, low cost and the like, belongs to a pressureless sintering molding technology, and is suitable for preparation of a large-size graphite ceramic composite material; the obtained graphite ceramic composite material has the properties of high strength, high thermal conductivity, oxidation resistance, thermal shock resistance and the like, and has wide application prospects in the fields of high-temperature casting, civil and military equipment and the like.
本发明公开了一种高强度高导热石墨陶瓷复合材料的制备方法，所述的石墨陶瓷复合材料是由石墨粉末、碳化硅增强网络和玻璃炭组成；所述的碳化硅增强网络由仿树枝状碳化硅网络和规则化碳化硅网络组成。高强度高导热石墨陶瓷复合材料制备过程包括混粉、层单元微热压成形、层间排气网络构造、多次重复、保压固化、快速碳化、多次浸渍强化、高温烧结等工艺环节。本发明提供的高强度高导热石墨陶瓷复合材料制备方法具有能耗低、低成本等优点，属于无压烧结成型技术，适合大尺寸石墨陶瓷复合材料制备；所获得的石墨陶瓷复合材料兼具高强、高导热、抗氧化、抗热振等性能，在高温铸造、民用和军用设备等领域具有广阔的应用前景。
High-strength high-thermal-conductivity graphite ceramic composite material and preparation method thereof
The invention discloses a preparation method of a high-strength and high-thermal-conductivity graphite ceramic composite material. The graphite ceramic composite material is composed of graphite powder, a silicon carbide enhanced network and glassy carbon. The silicon carbide enhanced network is composed of a dendritic-imitated silicon carbide network and a regular silicon carbide network. The preparation process of the high-strength and high-thermal-conductivity graphite ceramic composite material comprises the process links of powder mixing, layer unit micro hot pressing forming, interlayer exhaust network construction, multiple times of repeating, pressure maintaining curing, rapid carbonization, multiple times of dipping strengthening, high-temperature sintering and the like. The preparation method of the high-strength and high-thermal-conductivity graphite ceramic composite material has the advantages of low energy consumption, low cost and the like, belongs to a pressureless sintering molding technology, and is suitable for preparation of a large-size graphite ceramic composite material; the obtained graphite ceramic composite material has the properties of high strength, high thermal conductivity, oxidation resistance, thermal shock resistance and the like, and has wide application prospects in the fields of high-temperature casting, civil and military equipment and the like.
本发明公开了一种高强度高导热石墨陶瓷复合材料的制备方法，所述的石墨陶瓷复合材料是由石墨粉末、碳化硅增强网络和玻璃炭组成；所述的碳化硅增强网络由仿树枝状碳化硅网络和规则化碳化硅网络组成。高强度高导热石墨陶瓷复合材料制备过程包括混粉、层单元微热压成形、层间排气网络构造、多次重复、保压固化、快速碳化、多次浸渍强化、高温烧结等工艺环节。本发明提供的高强度高导热石墨陶瓷复合材料制备方法具有能耗低、低成本等优点，属于无压烧结成型技术，适合大尺寸石墨陶瓷复合材料制备；所获得的石墨陶瓷复合材料兼具高强、高导热、抗氧化、抗热振等性能，在高温铸造、民用和军用设备等领域具有广阔的应用前景。
High-strength high-thermal-conductivity graphite ceramic composite material and preparation method thereof
一种高强度高导热石墨陶瓷复合材料及其制备方法
WU HAIHUA (Autor:in) / ZENG SHIYU (Autor:in) / GUO YONG (Autor:in) / HAO JIAHUAN (Autor:in) / LI SIWEI (Autor:in) / ZHANG HONGFU (Autor:in) / KIL HAENG-DOO (Autor:in) / WANG JIE (Autor:in) / YE XICONG (Autor:in) / HUANG CAIHUA (Autor:in)
12.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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