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| Title: | Characterization of -TCP/alumina composite |
| Authors: | Hazman, Seli
Shah Rizal, Kasim
Hazizan, Md. Akil
Zainal Arifin, Ahmad |
| Keywords: | Tricalcium (TCP)
Composite
Calcium phosphate
X-ray diffraction (XRD)
Calcium carbonate (CaCO3)
International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) |
| Issue Date: | 9-Jun-2010 |
| Publisher: | Universiti Malaysia Perlis |
| Department: | School of Materials Engineering & School of Environmental Engineering |
| Citation: | p.319-323 |
| Series/Report no.: | Proceedings of the International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) 2010 |
| Abstract: | Calcium phosphate composite of -tricalcium
phosphate ( -TCP) matrix with different amount of
alumina (Al2O3) was studied. -TCP powder was
initially prepared via mixing calcium carbonate and
phosphoric acid to form precursor powder. In order to
determine the optimum calcination temperature, three
different temperatures (850!C, 950!C and 1050!C)
were selected. XRD and SEM analysis were carried out
to investigate changes in producing the -TCP powder.
-TCP powder was mixed with alumina powder in four
different compositions (1, 3, 5, 10 wt %) for 2 hours
followed by drying, uniaxially pressing for pellet
forming and sintering at 3 different temperatures i.e.
950!C, 1050!C and1100!C. Vickers microhardness test
was used to determined hardness of dense structures.
The optimum temperature was detected to be around
850!C. The addition of alumina and the increase of
sintering temperatures have affected the hardness of -
TCP composites. Sample with 10wt% of alumina and
sintered at 1100!C shows the highest Vickers
microhardness value (1.578 GPa). From FESEM, it is
predicted that the hardness of sintered -TCP-alumina
composite could be a strong function of the porosity
volume fraction of the composite. |
| 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://hdl.handle.net/123456789/10161 |
| ISBN: | 978-967-5760-02-0 |
| Appears in Collections: | Conference Papers
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