Boron nitride-based ceramic welding sealing component and preparation method thereof: Fid-Bau Portal

Boron nitride-based ceramic welding sealing component and preparation method thereof

CAO JIANPING / CAO JIANHUI / LIU PING

The invention discloses a boron nitride-based ceramic welding sealing component and a preparation method thereof, and relates to the technical field of metallized ceramic processing. The boron nitride-based ceramic welding sealing component comprises a ceramic substrate and a metallization layer, wherein the ceramic substrate is prepared from an inorganic fiber-boron nitride three-dimensional net-shaped substrate, yttrium oxide, silicon oxide, titanium oxide, an additive, a binder, a dispersing agent and other raw materials. The component is prepared by the steps of preparation of the inorganic fiber-boron nitride three-dimensional net-shaped substrate, mixing, granulating, sintering for a first time, sintering for a second time and the like. The metallization layer comprises the following raw materials: of titanium powder, tungsten powder, molybdenum oxide, boric oxide, aluminum oxide and an organic binding agent. The invention further discloses a preparation method of the boron nitride-based ceramic welding sealing component composed of the metallization layer and the ceramic substrate. The boron-nitride-based ceramic welding sealing component provided by the invention has high density and tensile strength, and has excellent tensile strength, toughness and high temperature resistance.

本发明公开一种氮化硼基陶瓷焊接密封元器件及其制备方法，涉及金属化陶瓷加工技术领域。本发明公开的氮化硼基陶瓷焊接密封元器件，包括陶瓷基体和金属化层，其中陶瓷基体用无机纤维‑氮化硼三维网状基体、氧化钇、氧化硅、氧化钛、添加剂、粘结剂和分散剂等原料，经无机纤维‑氮化硼三维网状基体制备、混料、造粒、一次烧结和二次烧结等步骤而制成；金属化层原料包括钛粉、钨粉、氧化钼、氧化硼、氧化铝和有机结合剂，并公开了用金属化层和陶瓷基体组成的氮化硼基陶瓷焊接密封元器件的制备方法。本发明提供的氮化硼基陶瓷焊接密封元器件，其具有高的致密度和抗拉强度，具有优异的抗拉强度、韧性和耐高温性能。

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