Abstract
In order to investigate the crystal structure and morphology of perovskite manganite materials, we have been successfully synthesized LaMnO3 and La0,8Ca0,2MnO3 systems through ultrasonic mixing method. The application of these materials is the alternative cooler technology beside freon gas using with residual emission gas. Stoichiometric mixture of La2O3, MnCO3, and CaO with more than 95 % purity were be prepared by ultrasonic mixing 40 kHz 60 watts for 30 minutes to result homogen mixtures. The samples were calcinated at 800°C for 1 h and sintered at 1100°C for 3 h. The structure of the samples was examined by X-ray diffractometer (XRD) Phillips and result as single phase of perovskite manganite materials. Morphology was studied using a 5310LV Jeol scanning electron microscope (SEM) that show the same grains of perovskite manganite material. While Ca substituted for La in the sample, the grain size decreases with decreasing the volume of cell units and finally the particle size of La0.8Ca0.2MnO3 phase decreases.
Highlights
2 Experimental procedureFreon cooling systems have been used by the publicat large. the cooling system produces CFC gas that can damage Earth'sozone [1,2,3]
The perovskite manganite materials of LaMnO3 and La0,8Ca0,2MnO3 systems were prepared by ultrasonic mixing method
The 1100 oC sintering process for 3 hours against both compositions of 20 mm diameter solids ensures that LaMnO3 and La0,8Ca0,2MnO3 systems are formed as expected (Figure 1d)
Summary
2 Experimental procedureFreon cooling systems have been used by the publicat large. the cooling system produces CFC gas that can damage Earth'sozone [1,2,3]. While the better-known oxide compound perovskite manganite material is a material composition which recently studied that due to have a better value MCE and synthesize from the constituent material.This material has the formula of LaxM1-xMnO3 compound with M = Li, Na, K, Ca, Sr, Ba, and Y.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
