金属陶瓷或者铸石中微纳米稀土添加剂及其制备方法
By soaking sand cores in rare earth solutions and treating them with mixed solvents, combined with ball milling processes, micro- and nano-rare earth additives for metal ceramics or cast stone are prepared. This solves the problems of insufficient bonding force and rare earth agglomeration, and achieves uniform particle size and improved mechanical properties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-11
- Publication Date
- 2026-07-17
AI Technical Summary
In metal-ceramic and cast stone materials, the bonding force between the metal phase and the ceramic phase is insufficient, resulting in poor overall mechanical properties. Furthermore, nano-rare earth oxides are difficult to disperse in the materials and tend to agglomerate, affecting the material properties.
Ceramic sand cores are soaked in rare earth solutions, and after preparing a mixed solvent, the sand cores are passed through the solution under negative pressure and ball milled with the addition of cermet or cast stone powder. Micro- and nano rare earth additives are prepared by combining ball milling with the process to control particle size distribution and avoid agglomeration.
The prepared micro-nano rare earth additives have uniform particle size and controllable dimensions, are adaptable to a variety of rare earth elements, and improve the bonding strength and mechanical properties of metal ceramics and cast stone, thus solving the problems of rare earth resource waste and high energy consumption in traditional methods.