| Autor: |
Violeta Popescu, Andreia Molea, Laura Silaghi-Dumitrescu, Cristina Prejmerean, Ioana Perhaiţa, Doina Prodan, Violeta Paşcalău, Marioara Moldovan, Lazar Diana, Stanca Boboia |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Key Engineering Materials. 587:43-51 |
| ISSN: |
1662-9795 |
| DOI: |
10.4028/www.scientific.net/kem.587.43 |
| Popis: |
In the present study, Zn-hydroxyapatite (Zn-HA) was synthesized, the powder was thermally treated at different temperatures and then characterized. The Zn-HA powder was characterized mainly by FTIR and XRD, but have been performed investigations like SEM, BET and size distribution. The addition of ZnO in hydroxyapatite causes alleged interactions with the existing groups in HA, which amend the corresponding signals to these groups in the IR spectra. X-ray diffractograms for samples (untreated and heat-treated) have been recorded and microstructural parameters for the all samples have been calculated. The obtained average sizes of the crystallites and the network tensions support the idea that Zn-HA powders are nanostructured. The SEM images and size distributions for Zn-HA indicate a cluster of crystals with nanometer-scale of the population-base. Was determined the adsorption-desorption isotherms for Zn-HA powder at 100 o C and 800 o C. The dates obtained from the analysis of particle size distribution indicates for the Zn-HA powder an size distribution for granules in the range from 0.05 to 0.3μm |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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