Now showing items 51-60 of 3754
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 grounded by a plane tangential grinding process with diamond grinding wheels. The analysis of the ...
Preparation of lanthanum doped Bi4Ti3O12 ceramics by the polymeric precursor method
Lanthanum-modified bismuth titanate, Bi4 - xLaxTi3O12 (BLT) ceramics, with x ranging from 0 to 0.75 were prepared by the polymeric precursor method. Orthorhombicity of the system is decreased with the increase of lanthanum ...
Influence of the Sintering Type in Ceramics Blocks for Cad-Cam
(Univ Costa Rica, Fac Odontologia, 2016-01-01)
The aim of this study was to characterize the influence of the sintering type in the flexural strength and hardness of ceramic blocks for CAD-CAM. Four type of ceramic blocks were selected and distributed according to the ...
OBTENTION OF POWDERED CERAMIC MATERIAL BY PYROLYSIS OF POLY [(DIMETHYLSILOXANE)-CO-(DIMETHYLSILAZANE)] COPOLYMERS AS PRECURSORS
(Sociedad Chilena de Química, 2006)
Stress distribution in ceramic restorations over natural tooth using finite element analysis. lithium disilicate x aluminum oxide material
Background: Data on stress distribution in tooth-restoration interface with different ceramic restorative materials are limited. The aim of this chapter was to assess the stress distribution in the interface of ceramic ...
Synthesis and structural characterization of carbon-rich SiCxOy derived from a Ni-containing hybrid polymer
(Elsevier Sci LtdOxfordInglaterra, 2008)
Porous texture of a ceramic material made with pore formers agents
(Functional Nanomaterials, 2017-01)
Porous ceramic materials have high permeability, high surface area, high thermal shock resistance, and others, that make it interesting for various applications in filters, membranes, support for catalytic reactions, etc. ...
Effects of incorporating natural minerals on production and bioactivity of bioactive glass ceramics
(Inst Chemical Technology, 2016-05)
Two glass-ceramics composition were produced from natural minerals. Quartzes and feldspars were pre-selected on the basis of their purities studied by X-ray diffraction (XRD) and chemical analysis. Prepared compositions ...
Transparent Er3+-activated lead fluorogermanate glass ceramics
Transparent glass ceramics containing β-PbF2:Er 3+ nanocrystals were obtained through appropriate thermal treatments of a glass of molar composition 60PbGeO3-10PbF2-30CdF 2 doped with 0.5 mol% Er3+. Their optical properties, ...