Particle Size Distribution of Cerate-Zirconate Powder Prepared via Three Different Methods

Abstract:

Ceramics powder of BaCe_0.54Zr_0.36Y_0.1O_2.95 (BCZY) was synthesized using three different methods namely sol-gel (SG), supercritical fluid (SC) and sol-gel assisted supercritical fluids (SGSF).The respective prepared samples were denoted as S1, S2 and S3. The calcined powder (T= 1100 °C) was analyzed using particle size analyzer (PSA), Pcynometer and scanning electron microscope (SEM). PSA showed a single particle size distribution (PSD) for all samples except for S3 which exhibits bimodial particle distribution. PSD of the samples were in the range of 295-396 nm for the primary powder and 712-820 nm for secondary powder. High relative powder density for S1, S2, S3 were recorded at 95 %, 93 % and 99 %, respectively. Morphology of the calcined powders by SEM micrograph revealed that S1 is in spherical shape, S2 is in cubic structure and S3 showed a mixture of spherical and rod-like structure. It was found that SG and SC produce a single shape of powder with lower density compared with SGSF.

• Periodical: Advanced Materials Research (Volume 1108)
• Pages: 67-72
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1108.67
• Online since: June 2015
• Authors: Najwa Adni Ibarahim, Nafisah Osman*, Mohd Azlan Mohd Ishak
• Keywords: Perovskite-Type Oxide, Sol-Gel, Supercritical Fluid Method

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