Article ID Journal Published Year Pages File Type
5436727 Boletín de la Sociedad Española de Cerámica y Vidrio 2016 5 Pages PDF
Abstract
This work provides a novel method for increasing the mechanical strength of porcelain materials. To achieve this was used a ceramic powder prepared from sodium feldspar and clay. This powder was wetted up to 8 wt.% with water and pieces of rectangular section are formed by uniaxial pressing at 21 MPa. The dried specimens were then sintered in a laboratory furnace (1,218 °C). These specimens were subjected to a chemical ion exchange treatment in order to increase their mechanical properties, also known chemical tempering. Temperature and time were varied during chemical treatment according to a factorial design. The results showed an increase of ∼74% in breaking force of porcelain material, providing a reduction of the material thickness greater than 15%. Therefore, the process of chemical tempering can be used to increase the breaking force and consequently decreasing the thickness, saving raw materials and energy in the production process.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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