Irregular pre-alloyed powders offer unique advantages in hot-press and pressureless sintering, with distinct functional mechanisms, thanks to their exceptional physical properties.
High‑Performance Reactors in Hot‑Press Sintering
High pressure ensures densification, shifting focus to alloy microstructure and interfacial adhesion. Their ultra-high specific surface area provides abundant atomic diffusion channels at high temperature, enabling rapid formation of a homogeneous, robust alloy matrix from Fe, Cu, Sn and Ni, and enhancing diamond wetting and chemical bonding for a stronger interface.
Structural Enhancers in Pressureless Sintering
Without external pressure, irregular particles offset densification deficits via three key aspects: tighter packing under vibration (reducing green body porosity), 3D mechanical interlocking (boosting matrix strength and toughness), and accelerated diffusion (promoting alloying to reduce micro-porosity and enhance inherent strength).
Conclusion
Irregular pre-alloyed powders adapt flexibly to both processes, improving microstructure, interfacial strength and stability, thus enhancing tool performance and service life, making them an excellent choice for high-performance diamond tools.
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