Thermal Expansion of Ceramic for a Building Materials

Studies on mechanical strength, thermal expansion of layering porcelains to alumina and zirconia ceramic core materials.

The aim of this study was to evaluate and clarify the various mechanical properties and behavior of layering porcelains (Tokuyama Dental Ceramic, IPS Empress 2, Cerabien, Vitadura, Creation) used for veneering high-strength ceramic core materials. The layering porcelains studied exhibited the following range of mechanical properties: compressive strength at 586-1091 MPa, bending strength at 30-...

Negative thermal expansion materials: technological key for control of thermal expansion.

Most materials expand upon heating. However, although rare, some materials contract upon heating. Such negative thermal expansion (NTE) materials have enormous industrial merit because they can control the thermal expansion of materials. Recent progress in materials research enables us to obtain materials exhibiting negative coefficients of linear thermal expansion over -30 ppm K-1. Such giant ...

Waste Management of Building Ceramic Materials Using the DfD Technique: Sustainable Development and Environmentally Friendly

Nowadays, in modern societies, growing activities in construction affairs and their economic development have been resulted construction wastes and so much demolition in the past three decades. Most of these wastes have not been treated and therefore caused severe damages to the environment. In this research, after reviewing construction and demolition management methods and their accesso...

MEDICAL USE OF CERAMIC MATERIALS

Factors Affecting Thermal Stress Resistance of Ceramic Materials

ing from temperature gradients in a cylinder were derived by Duhamel (1838).‘ Since that time, about thirty papers have appeared which mainly consider the calculation of thermal stresses in an infinite cylinder subjected to temperature gradients. It is apparent that thermal stresses are not a new or uninvestigated phenomenon. The first quantitative treatment of thermal stress fracture in cerami...