Processing of yttrium aluminosilicate (YAS) glasses for dental composites

Abstract

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.

Enhancing In Vitro Bioactivity of Melt‐Derived 45S5 Bioglass® by Comminution in a Stirred Media Mill

“…The enhanced fracturing in water was correlated with the hydrolyzing effect of water on siloxane bonds. More recently, Velez et al . investigated the feasibility of different mill geometries for the production of submicrometer particles from yttrium aluminosilicate glasses used in dentistry.…”

Estimation of properties of a photoinitiated silorane‐based composite with potential for orthopaedic applications

“…9,16 Furthermore, novel silanized filler particles have not been explored to achieve a solid resin/filler particle interface and subsequent improved mechanical properties. [17][18][19] This situation may be rectified by developing validated methods for estimating their properties. In the present contribution, we give details of such a method, with reference to four properties of particular importance to materials to be used as bone stabilizers, namely, maximum exotherm temperature (T max ), flexural strength (r B ), flexural modulus (E B ), and fracture toughness (K IC ).…”