THE EFFECT OF COMBINATION OF BORIC ACID AND LITHIUM CARBONATE ON SINTERING AND MICROSTRUCTURE IN SINGLE FIRING WALL TILE

Authors : Savaş ELMAS, İsmail TARHAN

Pages : 86-98

Doi:10.26900/jsp.3.010

View : 6 | Download : 3

Publication Date : 2019-04-30

Article Type : Research Paper

Abstract :The aim of this study was to determine the effect of boric acid and lithium carbonate on microstructure and sintering characteristics of wall tile after firing. Amount of Li2 insert ignore into journalissuearticles values(CO3); insert ignore into journalissuearticles values(0.1-0.3-0.6-0.9-1.2-4 wt.%); were added in wall tile corresponding to each constant amount of added of H3BO3 insert ignore into journalissuearticles values(0.1-0.3-0.6-0.9-1.2-2 wt.%); . All samples were fired in 1135 0C 35 minutes in an industrial fast firing kiln. Dry strength, fired strength, water absorption and colorimeter values of all samples were determined after firing. Scanning electron microscope insert ignore into journalissuearticles values(SEM);, x-ray diffraction insert ignore into journalissuearticles values(XRD); analysis, optical dilatometer measurements were performed in order to determine the microstructure and melting temperature for prescribed purpose insert ignore into journalissuearticles values(1-2-7-8-11-32-37);. Standard insert ignore into journalissuearticles values(1); and alternative insert ignore into journalissuearticles values(8); receipe’s thermogravimetric and diferantial thermal analyses were performed. 37 insert ignore into journalissuearticles values(2% H3BO3 + 4% Li2 insert ignore into journalissuearticles values(CO3); recipe’s sintering starting temperature was 984 0C. In the recipe 8 insert ignore into journalissuearticles values(0.3% H3BO3 + 0.1% Li2insert ignore into journalissuearticles values(CO3); is an alternative to the standard wall tile, which can be used with higher strength values. 
Keywords : Flux, Sintering, Microstructure, Boric acid, Litium carbonate, Wall tile