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Processing of yttrium aluminosilicate (YAS) glasses for dental composites

Processamento de vidros de aluminosilicatos de ítrio (YAS) para compósitos odontológicos

Two series of silicate glasses were processed to micron-size, sub-micron size, and nanoparticles using three different milling systems: ball milling, attrition, and high-energy milling. The effect of milling time and media size on particle size and contamination were investigated in aqueous and isopropanol suspensions. The particle size was determined using a laser-diffraction particle size analyzer and scanning electron microscopy. The smallest glass particles with a median particle size of 0.3 µm were achieved by a two-step comminution process in a high energy mill.

comminution; dental composites; glass fillers; nano-particles; particle processing


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