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Reinforcing method for silicon-based ceramic core with excellent mechanical property
The invention belongs to the technical field of silicon-based ceramic core preparation, and particularly relates to a silicon-based ceramic core with excellent mechanical properties. The silicon carbide ceramic is prepared from the following raw materials in parts by weight: 30-50% of porous quartz glass powder, 10-15% of a mullite mineralizer, 18-22% of a plasticizer, 10-15% of silicon carbide whiskers, 5-10% of silicon oxide, 1-5% of metal oxide sol, 3-5% of a silicon resin enhancer and the balance of silicon carbide powder. According to the invention, a layer of metal oxide sol is pre-sprayed on the surface of the silicon-based ceramic core, the silicon resin reinforcer is permeated into the silicon-based ceramic core under a vacuum condition, and the reinforced ceramic core has excellent physical properties through silicon carbide oxidation compounding and connection support of the porous quartz glass powder as a core skeleton; the high temperature resistance, the impact resistance, the high temperature resistance, the service life and the like of the product can be improved, and the excellent ceramic core with a compact internal structure and a high-strength and high-stability carbide and nitride outer layer for toughening and reinforcing can be obtained.
本发明属于硅基陶瓷型芯制备技术领域，尤其为一种力学性能优良硅基陶瓷型芯，由如下重量份数的原料配比而成：多孔石英玻璃粉30～50％、莫来石矿化剂10～15％、增塑剂18～22％、碳化硅晶须10～15％、氧化硅5～10％、金属氧化物溶胶1～5％、硅树脂强化剂3～5％、余量为碳化硅粉末；本发明在硅基陶瓷型芯表面预喷涂一层金属氧化物溶胶结合在真空条件下将硅树脂强化剂渗入硅基陶瓷型芯中，还通过碳化硅氧化复合及多孔石英玻璃粉为核心骨架的连接支撑，补强的陶瓷型芯具有优异的物理性能，可以提高产品的耐高温、抗冲击、耐高温寿命等性能，能够获得具有致密内部结构和高强度、高稳定性的碳化物及氮化物外层增韧补强的优良陶瓷型芯。
Reinforcing method for silicon-based ceramic core with excellent mechanical property
The invention belongs to the technical field of silicon-based ceramic core preparation, and particularly relates to a silicon-based ceramic core with excellent mechanical properties. The silicon carbide ceramic is prepared from the following raw materials in parts by weight: 30-50% of porous quartz glass powder, 10-15% of a mullite mineralizer, 18-22% of a plasticizer, 10-15% of silicon carbide whiskers, 5-10% of silicon oxide, 1-5% of metal oxide sol, 3-5% of a silicon resin enhancer and the balance of silicon carbide powder. According to the invention, a layer of metal oxide sol is pre-sprayed on the surface of the silicon-based ceramic core, the silicon resin reinforcer is permeated into the silicon-based ceramic core under a vacuum condition, and the reinforced ceramic core has excellent physical properties through silicon carbide oxidation compounding and connection support of the porous quartz glass powder as a core skeleton; the high temperature resistance, the impact resistance, the high temperature resistance, the service life and the like of the product can be improved, and the excellent ceramic core with a compact internal structure and a high-strength and high-stability carbide and nitride outer layer for toughening and reinforcing can be obtained.
本发明属于硅基陶瓷型芯制备技术领域，尤其为一种力学性能优良硅基陶瓷型芯，由如下重量份数的原料配比而成：多孔石英玻璃粉30～50％、莫来石矿化剂10～15％、增塑剂18～22％、碳化硅晶须10～15％、氧化硅5～10％、金属氧化物溶胶1～5％、硅树脂强化剂3～5％、余量为碳化硅粉末；本发明在硅基陶瓷型芯表面预喷涂一层金属氧化物溶胶结合在真空条件下将硅树脂强化剂渗入硅基陶瓷型芯中，还通过碳化硅氧化复合及多孔石英玻璃粉为核心骨架的连接支撑，补强的陶瓷型芯具有优异的物理性能，可以提高产品的耐高温、抗冲击、耐高温寿命等性能，能够获得具有致密内部结构和高强度、高稳定性的碳化物及氮化物外层增韧补强的优良陶瓷型芯。
Reinforcing method for silicon-based ceramic core with excellent mechanical property
一种力学性能优良硅基陶瓷型芯补强方法
ZHOU CHANGJUN (Autor:in) / GUO YUNLONG (Autor:in) / DU FENGYANG (Autor:in) / TANG RONGJUN (Autor:in) / TANG RONGBIAO (Autor:in)
24.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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