Now showing items 11-20 of 3752
Comparison of two bond strength testing methodologies for bilayered all-ceramics
(Elsevier B.V., 2007-05-01)
Objectives. This study compared the shear bond strength (SBS) and microtensile (MTBS) testing methodologies for core and veneering ceramics in four types of all-ceramic systems.Methods. Four different ceramic veneer/core ...
Use of Sludge as Ceramic Materials
(Trans Tech Publications Ltd, 2010-01-01)
Nowadays, with increase amounts of sludge derived from the treatment of domestic sewage put pressure into research on systems for the adequate use of these materials. The aim of the present work is to study the use of ...
Advanced ceramics: Evaluation of the mechanism of stock removal and ground surface quality
The aim of this work is to evaluate the mechanism of stock removal and the ground surface quality of advanced ceramics machined by a surface grinding process using diamond grinding wheels. The analysis of the grinding ...
Monofilamentary Ag/Bi:2212 tapes - Effects of silver powder addition
(Trans Tech Publications Ltd, 2005-12-01)
The Bi-Sr-Ca-Cu-O system has been one of the most studied superconducting ceramic materials for industry applications. The most of the studies with this aim are on silver/ceramic composites, due to the benefits and great ...
Adherence of Streptococcus mutans to uncoated and saliva-coated glass-ceramics and composites
This study sought to investigate the surface roughness and the adherence of Streptococcus mutans (in the presence and absence of saliva) to ceramics and composites. The early dental biofilms formed in situ on the materials ...
Fatigue failure load of two resin-bonded zirconia-reinforced lithium silicate glass-ceramics: Effect of ceramic thickness
Objectives: To evaluate the effect of ceramic thickness on the fatigue failure load of two zirconia-reinforced lithium silicate (ZLS) glass-ceramics, adhesively cemented to a dentin analogue material. Methods: Disc-shaped ...
Characterization of ceramic powders used in the inCeram systems to fixed dental Prosthesis
(ABM, ABC, ABPol, 2007-03-01)
InCeram (Vita Zahnfabrik- Germany) is known as a high strength ceramic being used for core crowns and for fixed partial denture frameworks. InCeram system consists of slip-casting technique which is used for to build the ...
Properties advanced of the silicon nitride based ceramics and recent performance on automotive parts manufacture by machining process: Advanced Ceramics, demand Forecast
Automotive parts manufacture by machining process using silicon nitride-based ceramic tool development in Brazil already is a reality. Si 3N4-based ceramic cutting tools offer a high productivity due to their excellent hot ...
Fractal approach to ac impedance spectroscopy studies of ceramic materials
A novel fractal model for grain boundary regions of ceramic materials was developed. The model considers laterally inhomogeneous distribution of charge carriers in the vicinity of grain boundaries as the main cause of the ...
Effect of mechanical cycling on the flexural strength of densely sintered ceramics
(Elsevier B.V., 2014)