| Autor: |
Rahmat Azmi, Rafezi Ahmad Khairel, Shamsul Baharin Jamaludin, Sri Asliza, K. Mohd Zaheruddin |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Applied Mechanics and Materials. 699:99-104 |
| ISSN: |
1662-7482 |
| DOI: |
10.4028/www.scientific.net/amm.699.99 |
| Popis: |
Ni deposited Hydroxyapatite powder was prepared by electroless deposition technique without sensitization and activation treatments. The composition and phase of deposition were studied. The surface morphologies and composition of initial pure HA powder, as received Ni deposited HA powder and compacted Ni deposited HA powder after sintering were characterized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) respectively. The phases in the powder before and after sintering were investigated by x-ray diffraction (XRD). From the experiment, with the increase of reduction agent, the plating time becomes shorter and optimal concentration of reduction agent and powder ratio is 3:1. The result shows that Ni succesfully deposited on HA powder and confirmed by EDX result. The Ni grain size distribution of 75nm to 250nm can be clearly observed on the HA surface from the micrograph after sintering. Decomposition of hydroxyapatite into α-TCP (α tricalcium phosphate) and TTCP (tetracalcium phosphate) did not occur in nickel deposited HA before and after sintering. On the other hand, a sharp Ni peak were detected |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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