OBJECTIVE: The aim of this study was to investigate the effect preheating three bulk-fill and one conventional composite resin on Vickers microhardness depth cure these composites. METHODS: In study, composites-SDR Plus (SDR), Estelite BULK FILL Flow (EST), Admira® Fusion x-tra (AFX), G-ænial POSTERIOR (GP) were used as control group. samples obtained at room temperature (24°C) 55°C in T2 mode ...

in this study, ultrafine grained 2024 al alloy based b4c particles reinforced composite was produced by mechanical milling and hot extrusion. mechanical milling was used to synthesize the nanostructured al2024 in attrition mill under argon atmosphere up to 50h. a similar process was used to produce al2024-5%wt. b4c composite powder. to produce trimodal composites, milled powders were combined w...