一种高硬度氧化铝-氧化锆复合陶瓷的制备方法
By combining co-precipitation method and aluminate modification technology with green injection molding, high-hardness alumina-zirconia ceramics were prepared, which solved the shortcomings of existing ZTA composite ceramics in terms of hardness and mechanical strength, and achieved environmentally friendly and efficient production.
CN118515471BActive Publication Date: 2026-07-17XINYI XIYI ADVANCED MATERIALS RES INST OF IND TECH CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XINYI XIYI ADVANCED MATERIALS RES INST OF IND TECH CO LTD
- Filing Date
- 2024-04-18
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing ZTA composite ceramic preparation methods cannot simultaneously achieve high hardness, chemical inertness, and maintain mechanical strength at high temperatures, and traditional methods are also environmentally polluting.
Method used
Alumina-zirconia nanocomposite powder was prepared by coprecipitation method, and aluminate was formed uniformly in alumina-zirconia ceramic by aluminate modification technology. Combined with green injection molding technology, high-performance alumina-zirconia ceramic was prepared.
Benefits of technology
The prepared alumina-zirconia ceramics have high strength, good toughness, good wear resistance, are environmentally friendly, and can be formed into complex shapes, reducing the cost of subsequent processing.
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Abstract
本发明公开了一种高硬度氧化铝‑氧化锆复合陶瓷的制备方法，该方法首先制备氧化铝‑氧化锆粉体，然后用氧化锶对氧化铝‑氧化锆粉体进行改性，最后采用Isobam胶凝剂进行绿色凝胶注模成型，经烧结得到高硬度氧化铝‑氧化锆复合陶瓷。本发明采用一种新型共沉淀法制备了氧化铝‑氧化锆纳米复合粉末，改性形成的六铝酸锶有效防止了复合陶瓷脆性破坏，并且Isobam凝胶体系环境友好，生产效率高，坯体质量好，成本更低，所制备的氧化铝‑氧化锆复合陶瓷耐磨性好、韧性好、强度高。
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