EXPERIMENTATION COLOUR OF GLAZE USING A VARIOUS STONE IN SABAH

Ceramics are the oldest art objects ever produced by humans since prehistoric times. Ceramics are made from clay and will change character when exposed to high temperatures above 1200 degrees celsius. Ceramic product is covered with a layer of glass which is a glaze and has a high resistance to temperature or heat. This research aims to document the production of glaze color systematically using various types of stone in Sabah such as Sungai Moyog stone, Lombong Mamut stone, and stone in Sports Complex, Ranau on the surface of the specimen body produced using by kaolin. In addition, this research also aims to identify the response of experimental samples using a mixture of different percentages using the formula Triaxial Line Blend on the surface of kaolin involving aspects of the material, type of combustion, and decoration techniques. The production of glaze color using natural materials which is a Sungai Moyog stone, Lombong Mamut stone, and Sports Complex stone found around Ranau and Kota Kinabalu, Sabah is an innovation in the production of color sourced from natural materials as well as efforts to develop the ceramic industry in Malaysia. It is more to the production of natural materials that have undergone the production process to produce a new glaze color. Preliminary studies using samples from color agents which are Sungai Moyog stone, Lombong Mamut stone, and Ranau Sports Complex stone were conducted experimentally. The research includes the preparation and formulation of glaze using the material until it successfully produces color pigments according to the temperature reaction and the type of combustion that has been implemented. This research also aims to study the suitability of glaze color on the surface of ceramic products such as kaolin. In conclusion, through this research, we will better understand the processes and ways how to produce glaze color in the ceramic industry by using natural materials found in the environment. Through this research as well, it is possible to identify the minerals present in the experimental materials that influence the reaction in the production of ceramic glaze color.

Effect of Rare Earth Oxides on Properties of Nano Antibacterial Ceramic Glaze

This topic is based on the research and development of inorganic silver-loaded antibacterial materials with good antibacterial activity, and the preparation of silver-loaded calcium carbonate inorganic nano-antibacterial agents by redox reaction. At the same time, the mixed rare earth oxide was added to the ceramic glaze containing silver nano antibacterial agent, and the nano antibacterial building sanitary ceramics were prepared by firing at 1180 °C in an oxidizing atmosphere. This experiment investigated the effect of adding mixed rare earth oxides on the quality and properties of glaze. Experiments show that the new glaze has stronger antibacterial effect than the nano antibacterial glaze without mixed rare earth oxide, and the glaze quality is good. After adding 0.5 wt% of mixed rare earth oxide, the whiteness, abrasion resistance, hardness and thermal shock resistance of the glaze were significantly improved.This topic is based on the research and development of inorganic silver-loaded antibacterial materials with good antibacterial activity, and the preparation of silver-loaded calcium carbonate inorganic nano-antibacterial agents by redox reaction. At the same time, the mixed rare earth oxide was added to the ceramic glaze containing silver nano antibacterial agent, and the nano antibacterial building sanitary ceramics were prepared by firing at 1180 °C in an oxidizing atmosphere. This experiment investigated the effect of adding mixed rare earth oxides on the quality and properties of glaze. Experiments show that the new glaze has stronger antibacterial effect than the nano antibacterial glaze without mixed rare earth oxide, and the glaze quality is good. After adding 0.5 wt% of mixed rare earth oxide, the whiteness, abrasion resistance, hardness and thermal shock resistance of the glaze were significantly improved.