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All Journal BULETIN FISIKA
Putu Ekayani Sri Tussniari
Udayana University
Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics

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Characterization Porosity on Ceramic Body Stoneware Based Kalimantan Clay Putu Ekayani Sri Tussniari; I Gusti Agung Putra Adnyana; Made Cingah
BULETIN FISIKA Vol 19 No 1 (2018): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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It has been made ceramic body stoneware using a mixture of Kalimantan clay, RRC feldspar, Belitung kaolin, Belitung quartz and Bukit Jimbaran limestone further coded BPC-1. This study aims to determine the value of dry shrinkage, the effect of sintering temperature of 900oC and 1200oC against firing shrinkage, and the influence of sintering temperature of 900oC and 1200oC against porosity in the ceramic body stoneware. Ceramic stoneware burned with a temperature variation of 900oC and 1200oC. The results show the value of dry shrinkage in ceramic stoneware of 2.9%. Stoneware ceramic firing shrinkage at a temperature of 900 oC combustion of 1.3%, and the combustion at a temperature 1200oC of 3.8%. Porosity ceramic stoneware at a temperature of 900oC combustion showed porosity of 10.5%, while the combustion at a temperature 1200oC of 5.5%. Show that the combustion temperature greatly affects the value of dry shrinkage, firing shrinkage and porosity of stoneware ceramics. The higher the combustion temperature the higher the shrinkage and the decreasing the porosity.
Characterization of Salacca Zalacca for Dye Sensitized Solar Cell (DSSC) Nyoman Wendri; Putu Ekayani Sri Tussniari; Hery Suyanto
BULETIN FISIKA Vol 20 No 2 (2019): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Snake fruit (salacca zalacca) characterization for Dye Sensitized Solar Cell (DSSC) material was conducted using Fourier transform Infrared (FTIR) and Principle Component Analysis (PCA) method. Dragon fruit and mangos teen were used as validator since they are containing anthocyanin. Data shows that snake fruit and mangos teen are in one cluster. Therefore, snake fruit can be used as DSSC material. DSSC fabrication using sandwich method that contains counter electrode, electrolyte and working electrode. The working electrode was made of thin film of titanium dioxide (TiO2) into indium Tin Oxide (ITO) which then was soaked in dye snake fruit as time function of 6, 12 and 24 hours. Result showed that the longer time of soaking, the current and efficient increased. In twenty four hours soaking, the current, voltage and efficiency were 6 mA, 9.16 V and 0.011 % respectively.
Co-Authors Adnyana, I Gusti Agung Putra Hery Suyanto Made Cingah Nyoman Wendri