Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Graphite material and workpiece anti-oxidation treatment technology and application
The invention provides a method for preparing an anti-oxidation silicon-based ceramic coating on a graphite matrix material and a surface thereof, which adopts an ultra-vacuum infiltration and stepped cracking sintering technology, and selects a special organic silicon material and an inorganic nano material to form a silicon-based nano ceramic coating inside and on the surface of a graphite material and a workpiece. Therefore, the problem that graphite materials and workpieces are oxidized and corroded under the high-temperature condition is solved, and the use performance and the service life of the graphite materials under the high-temperature environment are improved. The antioxidant silicon-based ceramic coating prepared by the preparation method is good in compactness and uniformity, and has thermal shock resistance and good high-temperature oxidation resistance; the surface flatness and thickness of the anti-oxidation silicon-based ceramic coating can be conveniently controlled by adjusting the molecular structure composition of the organic silicon material, the technological parameters of the permeation coating technology and the vacuum heat treatment temperature and time; and the preparation process can realize large-scale preparation of the graphite-based silicon-based ceramic anti-oxidation coating, is relatively simple in technological process, low in cost and good in repeatability, and can be widely applied to the field of anti-oxidation protection of various graphite materials and workpieces.
本发明提供了一种在石墨基体材料及表面制备抗氧化硅基陶瓷涂层的方法，采用超真空浸渗及阶梯式裂解烧结技术，选用特殊的有机硅材料、无机纳米材料在石墨类材料及工件内部和表面形成硅基纳米陶瓷涂层，从而解决石墨材料及工件在高温条件下被氧化腐蚀问题，提高石墨类材料的高温环境下使用性能和工作寿命。该制备方法所得抗氧化硅基陶瓷涂层的致密性和均匀性好，具有抗热冲击性和良好的高温抗氧化性能；通过调整有机硅材料分子结构组成，渗透镀膜技术工艺参数、真空热处理温度及时间，可以方便控制抗氧化硅基陶瓷涂层表面平整度和厚度；且该制备工艺可实现规模化制备石墨基硅基陶瓷抗氧化涂层，工艺过程相对简单，成本低、重复性好，可以广泛应用于各种石墨材料及工件抗氧化保护领域。
Graphite material and workpiece anti-oxidation treatment technology and application
The invention provides a method for preparing an anti-oxidation silicon-based ceramic coating on a graphite matrix material and a surface thereof, which adopts an ultra-vacuum infiltration and stepped cracking sintering technology, and selects a special organic silicon material and an inorganic nano material to form a silicon-based nano ceramic coating inside and on the surface of a graphite material and a workpiece. Therefore, the problem that graphite materials and workpieces are oxidized and corroded under the high-temperature condition is solved, and the use performance and the service life of the graphite materials under the high-temperature environment are improved. The antioxidant silicon-based ceramic coating prepared by the preparation method is good in compactness and uniformity, and has thermal shock resistance and good high-temperature oxidation resistance; the surface flatness and thickness of the anti-oxidation silicon-based ceramic coating can be conveniently controlled by adjusting the molecular structure composition of the organic silicon material, the technological parameters of the permeation coating technology and the vacuum heat treatment temperature and time; and the preparation process can realize large-scale preparation of the graphite-based silicon-based ceramic anti-oxidation coating, is relatively simple in technological process, low in cost and good in repeatability, and can be widely applied to the field of anti-oxidation protection of various graphite materials and workpieces.
本发明提供了一种在石墨基体材料及表面制备抗氧化硅基陶瓷涂层的方法，采用超真空浸渗及阶梯式裂解烧结技术，选用特殊的有机硅材料、无机纳米材料在石墨类材料及工件内部和表面形成硅基纳米陶瓷涂层，从而解决石墨材料及工件在高温条件下被氧化腐蚀问题，提高石墨类材料的高温环境下使用性能和工作寿命。该制备方法所得抗氧化硅基陶瓷涂层的致密性和均匀性好，具有抗热冲击性和良好的高温抗氧化性能；通过调整有机硅材料分子结构组成，渗透镀膜技术工艺参数、真空热处理温度及时间，可以方便控制抗氧化硅基陶瓷涂层表面平整度和厚度；且该制备工艺可实现规模化制备石墨基硅基陶瓷抗氧化涂层，工艺过程相对简单，成本低、重复性好，可以广泛应用于各种石墨材料及工件抗氧化保护领域。
Graphite material and workpiece anti-oxidation treatment technology and application
石墨类材料及工件抗氧化处理技术和应用
ZHOU XIDONG (Autor:in) / LIU LANYING (Autor:in)
19.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
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