Main Article Content
Abstract
ABSTRACT
The making of La0,8Ca0,2MnO3 cathode material of solid oxide fuel cell from lanthanum oxide (La2O3), calcium oxide (CaO), and manganese carbonate hydrate (MnCO3.H2O) has been done using tape casting method. Time of firing the La0,8Ca0,2MnO3 varied. The values of t = 30 minutes, 60 minutes and 120 minutes. Microstructure of these materials was analyzed and characterized by means of their electric conductivity, XRD (x ray diffraction) and SEM (scanning electron microscope). It is found that formulated micro structure is orthorhombic. The result of measurement shows that density is in linear (positive) correlation with increasing of holding time of firing, porosity and coefficient of thermal expansion is negatively correlated with density and electric conductivity is in linear (positive) correlation with increase density.
Diterima: 26 Pebruari 2007, Disetujui: 13 Mei 2007
Keywords
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors submitting manuscripts should understand and agree that copyright of manuscripts of the article shall be assigned/transferred to Jurnal Keteknikan Pertanian. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA) where Authors and Readers can copy and redistribute the material in any medium or format, as well as remix, transform, and build upon the material for any purpose, but they must give appropriate credit (cite to the article or content), provide a link to the license, and indicate if changes were made. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.