Liquid phase sintering, in the temperature range of 1173-1273K for 1h in air, of crystalline earth mud blended with calcia and sodium hydroxide, shows strong adhesion of grains due to formation of intergranular silicate phase which renders it a white ceramic composite. The tiles sintered at 1223K for 1h in air show cold crushing strength (CCS) of 30 MPa. The sintered tiles show density of 1.97 g.cm-3 and open porosity of 12.6%. They are inert in boiling water and show high chemical stability.
Origin
Regional Resarch Labs, Bhubaneswar, India
Journal Title
Trans Indian Ceram Soc 61 1 Jan-March 2002 23-25
Sector
Special Glass
Class
S 2463