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Title: | Effect of La2O3 addition on microstructure, morphology and pressure sensing behaviour of PZT based ceramics sintered in Al2O3 environment |
Authors: | Mohammad Hafizuddin, Hj. Jumali Tio, Ying Ying Norhashimah, Ramli Muhammad, Mat Salleh Muhammad, Yahaya hafizhj@ukm.my |
Keywords: | PLZT Solid state reaction Tetragonal structure Morphological analysis Pressure sensing behaviour International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) |
Issue Date: | 9-Jun-2010 |
Publisher: | Universiti Malaysia Perlis |
Citation: | p.158-161 |
Series/Report no.: | Proceedings of the International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) 2010 |
Abstract: | Effect of La2O3 addition on microstructure, morphology and pressure sensing behaviour of (Pb1-x, Lax)(Zr0.52, Ti0.48)O3 based ceramics was studied in three different compositions of La2O3, namely x = 0.10, 0.12 and 0.15. The samples were prepared through a conventional solid-state reaction method using high purity metal oxides powders. In order to control the PbO losses due to high sintering temperature, a novel approach was explored whereby the samples were sintered in Al2O3 environment. Structural investigation using XRD revealed that all samples exhibited a tetragonal crystal structure. However the c/a ratios exhibited a decreasing trend as the La2O3 content increased, indicating that (Pb1-x, Lax)(Zr0.52, Ti0.48)O3 crystals gradually evolved towards pseudocubic structure. SEM micrographs showed that in all samples the grains have uniform pebble stone morphology. The average grain size reduced from ~ 4.5 μm to ~ 3.0 μm with the increment of La2O3 content. The performance of pressure sensing behaviour which was investigated using custom-made pressure chamber showed that sample with composition of x = 0.10 exhibited the best piezoelectric properties with high pressure sensitivity, good stability and repeatability. |
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/123456789/9008 |
ISBN: | 978-967-5760-02-0 |
Appears in Collections: | Conference Papers |
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Effect of La2O3 addition on microstructure, morphology and pressure sensing behaviour of PZT based ceramics sintered in Al2O3 environment.pdf | Access is limited to UniMAP community | 255.23 kB | Adobe PDF | View/Open |
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