OBJECTIVES This paper aims to assess the effectiveness of 3D nanoroughness and 2D microroughness evaluations, by their correlation with contact angle measurements and shear bond strength test, in order to evaluate the effect of two different acids conditioning on the bonding efficacy of a leucite-based glass-ceramic to a composite resin. STUDY DESIGN Ceramic (IPS Empress) blocks were treated ...

Composite polymer electrolyte (CPE) membranes, comprising poly (vinylidene fluoride) (PVdF)/poly (methyl methacrylate) (PMMA), BaTiO3 as ceramic filler and LiBF4 as the lithium salt were prepared using a solution casting technique. The prepared membranes were subjected to XRD, FT-IR, impedance spectroscopy and thermal stability studies. The incorporation of nanofiller greatly enhanced the ionic...

The paper presents and discusses a method to achieve beneficial electrochemical effects mediated by interfaces in an ionic conducting polymer matrix. The beneficial effects include enhanced ionic transport, catalysis of anodic oxidation reaction, and stabilization of the lithium-electrolyte interface in lithium-based electrochemical cells. Polyethylene oxide (PEO) doped with LiN(SO2CF2CF3)2 (Li...

INTRODUCTION CAD/CAM (computer-aided design and computer-aided manufacturing) systems have refreshed the idea of chair-side production of restorations, but the fracture of ceramic veneers remains a problem. Cementation with glass fibers may improve the fracture strengths and affect the failure modes of CAD/CAM-generated ceramic veneers. Therefore, this study compared the fracture strengths of c...

An analysis of the high resolution optical spectra (at 10 or 300 K) of Sm in YAG transparent ceramics is presented. The peculiarities of the spectra in ceramics are outlined. Accurate data for the application of Sm: YAG ceramic to suppress parasitic oscillations in high power Nd: YAG ceramic composite lasers are obtained.

We demonstrate synthesis of a polymer-derived ceramic (PDC)-multiwall carbon nanotube (MWCNT) composite using microwave irradiation at 2.45 GHz. The process takes about 10 min of microwave irradiation for the polymer-to-ceramic conversion. The successful conversion of polymer coated carbon nanotubes to ceramic composite is chemically ascertained by Fourier transform-infrared and X-ray photoelec...

Silane coupling agents (SCAs) with different organofunctional groups were coated on the surfaces of Al₂O₃ ceramic particles through hydrolysis and condensation reactions, and the SCA-coated Al₂O₃ ceramic particles were dispersed in a commercial photopolymer based on interpenetrating networks (IPNs). The organofunctional groups that have high radical reactivity and are more effective in UV curin...

Componeer is an emerging esthetic solution for the treatment of discolored, fractured, or congenitally malformed teeth, which once required full-coverage restorations. Componeers combine the superior esthetic of ceramic veneers, and the bondability to tooth structure like direct composite veneers. Precontoured enamel shells with excellent color stability, no laboratory procedure, and cost effec...

INTRODUCTION Zirconium is a metal with excellent biocompatibility, which when oxidized is converted to the ceramic, zirconia. Composite-bearing materials have recently become available consisting of a metal zirconium core with an oxidized zirconia surface. The metal-ceramic composite has the wear characteristics of a ceramic bearing but with a much lower propensity for fracture. This dual advan...

Coating is one of the most effective measures to protect metallic materials from corrosion. Various types of coatings such as metallic, ceramic and polymer coatings have been investigated in a quest to find durable coatings to resist electrochemical decay of metals in industrial applications. Many polymeric composite coatings have proved to be resistant against aggressive environments. Two majo...