Phase Formation, Microstructures and Mechanical Properties of Lead-Free BNKT Ferroelectric Ceramics Doped with BZZ
| Autor: | Chatchai Kruae-In, Paponsan Puanpia, Suchittra Inthong, Orawan Takhan |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Scanning electron microscope Mechanical Engineering Ferroelectric ceramics Metallurgy chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Indentation hardness Zirconate Bismuth chemistry Mechanics of Materials visual_art Phase (matter) 0103 physical sciences visual_art.visual_art_medium General Materials Science Ceramic Composite material 0210 nano-technology |
| Zdroj: | Key Engineering Materials. :589-592 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.675-676.589 |
| Popis: | In this research, the effects of bismuth zinc zirconate (BZZ) additive on phase formation, microstructural and mechanical properties of bismuth sodium potassium titanate (BNKT) ceramics were investigated. The BZZ-doped BNKT ceramics were prepared using solid state reaction technique. The pure phase of BZZ-doped BNKT powders were achieved for a calcinations temperature of 850 °C for 4h. The obtained powders were pressed into small pellets and sintered at optimum temperature to from dense ceramics. The XRD analysis of the ceramics shows that all ceramic samples exhibited a pure phase perovskite structure. The bulk densities of samples were about 5.82-6.03 g/cm3 which measured using the Archimedes method. The mechanical properties were measured using micro hardness tester. The microstructural of sintered surface was investigated using scanning electron microscopy (SEM). Average grain size increased with increasing BZZ content. The relations of these results were discussed and compared to the previous works. |
| Databáze: | OpenAIRE |
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