Aluminum nitride ceramic piece with high thermal conductivity: Fid-Bau Portal

Aluminum nitride ceramic piece with high thermal conductivity

LIU WEIHUA / LIU QINGFENG

The invention discloses an aluminum nitride ceramic piece with high thermal conductivity, which relates to ophthalmologic operation training, and is prepared from the following raw materials: a welding rod, alloy powder, AIN powder, a dispersing agent, a sintering aid, epoxy resin, a defoaming agent, a curing agent and the like through material preparation, mixing and ball milling, defoaming, degreasing, curing and drying, sintering and the like. The preparation method comprises the following steps: preparing an organic solvent, selecting one or more of ethanol, propanol, butanol and ethylene glycol as a solvent, adding a dispersing agent and low-viscosity epoxy resin, and uniformly stirring to form a premixed solution; according to the aluminum nitride ceramic piece with the high heat conductivity, the existence rate of bubbles is reduced, the bubble removing efficiency of the aluminum nitride ceramic can be improved while the high heat conductivity of the aluminum nitride ceramic is guaranteed, the conditions of edge breakage, fragmentation and the like during machining of the aluminum nitride ceramic piece are prevented, and the production efficiency of the aluminum nitride ceramic is improved; the wear resistance, corrosion resistance and heat resistance of the aluminum nitride ceramic piece are further enhanced, and the molten metal corrosion resistance strength of the aluminum nitride ceramic piece is improved.

本发明公开了一种具有高导热的氮化铝陶瓷件，涉及眼科手术培训，包括配料、混拌球磨、除泡、脱脂、固化干燥、烧结及以下原料：焊条、合金粉、AIN粉、分散剂、烧结助剂、环氧树脂、消泡剂、固化剂等原料，配料包括有机溶剂及选用乙醇、丙醇、丁醇和乙二醇中的一种或几种做溶剂，加入分散剂和低黏度环氧树脂，搅拌均匀形成预混液。本发明一种具有高导热的氮化铝陶瓷件，减少气泡的存在率，在保证氮化铝陶瓷高导热的同时能够提高氮化铝陶瓷的除泡效率，防止氮化铝陶瓷件加工时出现崩边、碎裂等情况，提高氮化铝陶瓷的生产效率，使氮化铝陶瓷件的耐磨、耐蚀及耐热性能进一步增强，提高氮化铝陶瓷件的抗熔融金属侵蚀性强度。

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