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Title: | The effect of sintering temperature on mechanical properties of natural and synthetic Hydroxyapatite with Alumina (1%) as an additive |
Authors: | Rozaima Yusoff Sri Asliza Md Amin (Advisor) |
Keywords: | Sintering Sinter (Metallurgy) Materials engineering Hydroxyapatite -- Thermal analysis Biomedical materials Aluminum oxide |
Issue Date: | May-2008 |
Publisher: | Universiti Malaysia Perlis |
Abstract: | A multi sintering temperature of hydroxyapatite (HA) will give an affect not only for the shape, composition and arrangement of the microstructure, but also to a high impact on mechanical properties of those samples. Natural and synthetic HA adding with Alumina separately, will change a mechanical properties of pure HA to make it suitable apply to many medical application nowadays. A using of natural HA will go through with a heat treatment of cow bone to remove an impurities and protein to avoid it affected a properties of final samples. It’s different by using a synthetic HA, where this powder is then mix with alumina as an additive, PEG as a binder and Calgon as anti-agglomerate. Both type of HA will prepare using a wet method and roll the mixing on the ball milling for 16 hours. Mixing is then dry in oven for 3 hours and crush also sieve to get fine particles. Granulation is spraying on bulk mixing for 8-10% before it compact with 50MPa using un-axial load. A dense sample is dry in oven and after sinter at 1150oC and 1200oC before it will test their density and porosity, flexural test (MOR), X-ray diffraction (XRD) and scanning electron microscopic (SEM). TGA/DTA and also Malvern Mastersizer analysis is done to measure a characterization of materials before sinter. From both HA used, synthetic HA will give a higher density and strength when it sinter at higher temperature. |
URI: | http://dspace.unimap.edu.my/123456789/3376 |
Appears in Collections: | School of Materials Engineering (FYP) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Referrences and Appendix.pdf | 76.54 kB | Adobe PDF | View/Open | |
Conclusion.pdf | 57.67 kB | Adobe PDF | View/Open | |
Results and discussion.pdf | 1.16 MB | Adobe PDF | View/Open | |
Methodology.pdf | 118.53 kB | Adobe PDF | View/Open | |
Literature review.pdf | 938.58 kB | Adobe PDF | View/Open | |
Introduction.pdf | 83.9 kB | Adobe PDF | View/Open | |
Abstract, Acknowledgement.pdf | 43.5 kB | Adobe PDF | View/Open |
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