The thermal barrier coatings (TBCs) by gas tunnel-type plasma spraying exhibited ceramic-composite features consisting of a host oxide matrix ceramic with an embedded second phase material. The densities of the composite TBC were found to be higher than those sprayed with 100wt% ZrO2 or Al2O3. In the coatings produced with powder mixtures of 50wt%, the embedded splats are found to have a relati...

During the past decade, zirconia-based ceramics have been successfully introduced into the clinic to fabricate fixed dental prostheses (FDPs), along with a dental computer-aided/computer-aided manufacturing (CAD/CAM) system. In this article (1) development of dental ceramics, (2) the current status of dental CAD/CAM systems, (3) CAD/CAM and zirconia restoration, (4) bond between zirconia and ve...

The aim of this work is to synthesize and investigate the performance of yttria-doped zirconia solgel coatings in the chemical corrosion prevention of zircaloy-4 (zirconium alloy) in a 1 N H2SO4 environment. The influence of four different molar ratios of water to alkoxide, namely 1, 4, 12, and 20, on the coating quality and its corrosion prevention performance was investigated. Differential th...

Titanium and zirconia are the biomaterials used in medicine and dentistry for restorations and implants. However, the adhesion of zirconia to other materials is weak. The implant fixation of titanium and zirconia is slow. This is due to the chemical and bio-inertness. The performance can be improved by coating with other materials. This mini review will discuss the coating methods with zirconia...

Background: Reinforcement of dental acrylics with fillers has yielded positive results. Different proportions have been added to strengthen the acrylics, but no consensus reached. Aim: The purpose this study was investigate effects addition different concentrations yttria-stabilized zirconium (YSZ) obtained from residues generated CAD-CAM milling YSZ on microstructure and mechanical properties ...

ZrO2 is an attractive host matrix for luminescence material because of its excellent physical properties, such as low phonon energy and wide band gap. In this work, the highly transparent Tm2O3 Yb2O3 co-doped yttria stabilized zirconia (YSZ) (abbreviated Yb/Tm: YSZ) single crystals were grown by optical floating zone method. The YSZ samples in cubic phase at room temperature when Yb3+ Tm3+ repl...

Yttria-stabilized zirconia (YSZ) is a widely recognized ceramic of distinct electrical, mechanical and optical properties. Although YSZ an intrinsically paramagnetic solid, it could potentially transform to magnetic semiconductor by incorporating in its crystalline structure isolated atoms bearing unpaired valence electrons. Based on this hypothesis motivated the latest advances doped with rare...

Ti(β) alloys have become an important class in the biomedical field due to low Young’s modulus, excellent physical properties, and biocompatibility. However, their like biocompatibility and, also, wear resistance, can be still enhanced. To improve those a composites approach applied. This research shows new of composite structure fabrication by powder metallurgy methods which for stabile yttria...

This study is an effort to cover and interconnect multiple aspects of the fabrication yttria-stabilized zirconia (YSZ) from powder preparation a solid electrolyte suitable for utilization in oxide cells. Thus, series YSZ electrolytes was prepared, differing content Y2O3 dopant method preparation. Combustion synthesis along with thermal decomposition precursors used 8 18 mol.%. Post-synthesis tr...