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Title: | La-Doped CaCu3Ti4O12 ceramics synthesized under argon environment |
Authors: | N. Shafiza, Afzan S. D., Hutagalung Zainal A., Ahmad mrsabar@eng.usm.my |
Keywords: | CaCu3Ti4O12 (CCTO) La-doped Argon environment X-ray Diffraction (XRD Microelectronics International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) |
Issue Date: | 9-Jun-2010 |
Publisher: | Universiti Malaysia Perlis |
Citation: | p.174-178 |
Series/Report no.: | Proceedings of the International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) 2010 |
Abstract: | The properties of undoped and La-doped CaCu3Ti4O12 (CCTO) ceramics synthesized via solid state reaction under argon environment had been studied. La-doped CCTOs found to have higher dielectric constant than undoped CCTO. X-ray Diffraction (XRD) analysis indicated that all of the samples have single-phase cubic structure (space group) with no trace of other impurity phases. However, compared with undoped CCTO, minor shifts are observed in the peak positions for La-doped specimens, which are attributed to the lattice expansion caused by ionic size effects (as La3+ is bigger than Ca2+). The lattice parameter estimated from XRD patterns of undoped CCTO were found to be 7.348 Å and the increases in lattice parameter of La-doped CCTO from 7.348 – 7.377 Å, suggesting that La ions have effectively substituted into the Ca site of CCTO |
Description: | International Conference on X-Rays and Related Techniques in Research and Industry (ICXRI 2010) jointly organized by Universiti Malaysia Perlis (UniMAP) and X-Ray Application Malaysia Society (XAPP), 9th - 10th June 2010 at Aseania Resort Langkawi, Malaysia. |
URI: | http://dspace.unimap.edu.my/123456789/9062 |
ISBN: | 978-967-5760-02-0 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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La-Doped CaCu3Ti4O12 Ceramics Synthesized under Argon Environment.pdf | Access is limited to UniMAP community | 583.91 kB | Adobe PDF | View/Open |
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