Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Antioxidant compact compound tungsten carbide-based rare metal ceramic and preparation method thereof
The invention discloses antioxidant compact compound tungsten carbide-based rare metal ceramic and a preparation method thereof, and relates to the field of metal ceramic. Firstly, a silicon carbide substance is introduced through polycarbosilane, ceramic pores are filled with metal zirconium through a metal infiltration reaction, compactness is improved, and meanwhile the oxidation resistance of a ceramic matrix is enhanced; and then, a tungsten carbide enrichment layer is formed on the surface of the ceramic in a mode of combining ion injection infiltration and spraying, and the high-temperature and high-speed tungsten carbide and the metal adhesive are combined with the originally injected tungsten carbide enrichment layer into a whole during spraying. Secondly, high-proportion rare metal nano rhenium is adopted, and material surface densification of the tungsten carbide-based metal ceramic compound coating in a high-temperature environment is achieved; finally, through hydrogen reduction treatment, the oxygen content of the powder is further reduced, and the high-activity low-oxygen compound carbide rare metal ceramic with the nanocrystalline structure is produced. The ceramic prepared by the invention has the effects of oxidation resistance and compactness.
本发明公开了一种抗氧化致密复式碳化钨基稀有金属陶瓷及其制备方法，涉及金属陶瓷领域。本发明先通过聚碳硅烷引入碳化硅物质，金属锆通过金属熔渗反应填补陶瓷孔隙，提高致密性的同时强化陶瓷基体的抗氧化性；然后采用离子注渗与喷涂相结合的方式，使陶瓷表面形成碳化钨富集层，在喷涂时高温高速碳化钨及金属粘接剂便与原来注入的碳化钨富集层相互结合为一整体。其次，采用高比例的稀有金属纳米铼，实现了碳化钨基金属陶瓷复式涂层高温环境下的材料表面致密化；最后通过氢气还原处理，进一步降低粉末的氧含量，生产得到具备纳米晶结构的高活性低氧复式碳化物稀有金属陶瓷。本发明制备的陶瓷具有抗氧化、致密得效果。
Antioxidant compact compound tungsten carbide-based rare metal ceramic and preparation method thereof
The invention discloses antioxidant compact compound tungsten carbide-based rare metal ceramic and a preparation method thereof, and relates to the field of metal ceramic. Firstly, a silicon carbide substance is introduced through polycarbosilane, ceramic pores are filled with metal zirconium through a metal infiltration reaction, compactness is improved, and meanwhile the oxidation resistance of a ceramic matrix is enhanced; and then, a tungsten carbide enrichment layer is formed on the surface of the ceramic in a mode of combining ion injection infiltration and spraying, and the high-temperature and high-speed tungsten carbide and the metal adhesive are combined with the originally injected tungsten carbide enrichment layer into a whole during spraying. Secondly, high-proportion rare metal nano rhenium is adopted, and material surface densification of the tungsten carbide-based metal ceramic compound coating in a high-temperature environment is achieved; finally, through hydrogen reduction treatment, the oxygen content of the powder is further reduced, and the high-activity low-oxygen compound carbide rare metal ceramic with the nanocrystalline structure is produced. The ceramic prepared by the invention has the effects of oxidation resistance and compactness.
本发明公开了一种抗氧化致密复式碳化钨基稀有金属陶瓷及其制备方法，涉及金属陶瓷领域。本发明先通过聚碳硅烷引入碳化硅物质，金属锆通过金属熔渗反应填补陶瓷孔隙，提高致密性的同时强化陶瓷基体的抗氧化性；然后采用离子注渗与喷涂相结合的方式，使陶瓷表面形成碳化钨富集层，在喷涂时高温高速碳化钨及金属粘接剂便与原来注入的碳化钨富集层相互结合为一整体。其次，采用高比例的稀有金属纳米铼，实现了碳化钨基金属陶瓷复式涂层高温环境下的材料表面致密化；最后通过氢气还原处理，进一步降低粉末的氧含量，生产得到具备纳米晶结构的高活性低氧复式碳化物稀有金属陶瓷。本发明制备的陶瓷具有抗氧化、致密得效果。
Antioxidant compact compound tungsten carbide-based rare metal ceramic and preparation method thereof
一种抗氧化致密复式碳化钨基稀有金属陶瓷及其制备方法
13.12.2024
Patent
Elektronische Ressource
Chinesisch
Fully-compact binder-free tungsten carbide ceramic and preparation method thereof
| Europäisches Patentamt | 2022
Compact nano transition metal carbide high-entropy ceramic and preparation method thereof
| Europäisches Patentamt | 2024
Tungsten carbide-silicon nitride ceramic composite end mill and preparation method thereof
| Europäisches Patentamt | 2023
Wear-resistant silicon carbide ceramic-based compound material and preparation method thereof
| Europäisches Patentamt | 2015
Amplitude-modulated decomposition-hardening compound carbide ceramic and preparation method thereof
| Europäisches Patentamt | 2024