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DC Field | Value | Language |
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dc.contributor.author | Lexus Cheong, Sze Yeong | - |
dc.date.accessioned | 2017-10-06T02:00:47Z | - |
dc.date.available | 2017-10-06T02:00:47Z | - |
dc.date.issued | 2016-05 | - |
dc.identifier.uri | http://dspace.unimap.edu.my:80/xmlui/handle/123456789/49871 | - |
dc.description | Access is limited to UniMAP community. | en_US |
dc.description.abstract | Nb-8YSZ pellets were produced by two different methods – solid state (SS) processing and sol-gel (SG) synthesis, varying the content of Nb for each of them (0 –1.5% Nb). The Nb-8YSZ pellets were sintered at 1550°C, and various characterisation methods were used to obtain the properties. For SS samples, the morphology appear to be increasing in grain size (5 to 8 μm) with addition of Nb, and appears to increase in density. Nb addition also increases monoclinic phase content, and increases conductivity. Excess Nb content will lead to sub-optimal sample properties. The SG samples show different response; grain size decreases (1 to 0.5μm) with increasing Nb content, density, however, increases. Nb addition has a drastic effect on phase content, with no apparent trend. Nb also increases conductivity for SG samples. The difference between method of synthesis (SS and SG) were also studied. SG brings a reduction in phase transformation temperature, increases density and increases conductivity. For both the SS and SG samples, the mol% of Nb that gives the best conductivity value is 1.0 mol%. Also, the best conductivity value is obtained in 1.0 mol% SG sample with 8.013 x 10-6 (Ωcm)-1. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Universiti Malaysia Perlis (UniMAP) | en_US |
dc.subject | Yttria | en_US |
dc.subject | Zirconia | en_US |
dc.subject | Yttria Stablised Zirconia (YSZ) | en_US |
dc.subject | Sol-gel process | en_US |
dc.subject | Solid state (SS) | en_US |
dc.title | Synthesis and characterisation of Niobium doped Yttria stabilised Zirconia | en_US |
dc.type | Other | en_US |
dc.contributor.advisor | Dr. Banjuraizah Johar | en_US |
dc.publisher.department | School of Materials Engineering | en_US |
Appears in Collections: | School of Materials Engineering (FYP) |
Files in This Item:
File | Description | Size | Format | |
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Abstract,Acknowledgement.pdf | 224.86 kB | Adobe PDF | View/Open | |
Introduction.pdf | 312.47 kB | Adobe PDF | View/Open | |
Literature Review.pdf | 603.94 kB | Adobe PDF | View/Open | |
Methodology.pdf | 334.34 kB | Adobe PDF | View/Open | |
Results and Discussion.pdf | 1.38 MB | Adobe PDF | View/Open | |
Conclusion and Recommendation.pdf | 221.15 kB | Adobe PDF | View/Open | |
Refference and Appendics.pdf | 611.29 kB | Adobe PDF | View/Open |
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