A Study and Comparative Analysis of the Properties of Clays Sourced from Various Sources for Ceramic Pot Production

Abstract

The objectives of this research were to investigate and compare the physical properties of ceramic pots made from different clay sources. Three types of clay, namely Chiang Rai clay, Celadon clay, and Pak Kret clay, were utilized for this study. Sintering processes were conducted at three different temperatures: 1,000°C, 1,100°C, and 1,200°C, with each sintering process lasting for 6 hours and 30 minutes. The research findings revealed that the color and external characteristics of Chiang Rai clay and Celadon clay lightened as the temperature increased, while Pak Kret clay darkened under the same conditions. Furthermore, Chiang Rai clay exhibited slightly rough external characteristics with some cracks and minimal buckling. In contrast, Celadon clay displayed a smooth texture with no cracks or buckling, and Pak Kret clay also had a smooth texture with minimal cracking and buckling. A test for water absorption showed that Celadon clay fired at 1,200°C exhibited a water absorption rate of 7.43%, making it suitable for ceramic pot production. Additionally, a test for shrinkage revealed that Celadon clay fired at 1,200°C exhibited a shrinkage rate of 3.54%, indicating its suitability for use in the manufacturing of ceramic pots.