dc.contributor.author |
Adams, D
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dc.contributor.author |
Malgas, GF
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dc.contributor.author |
Smith, RD
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dc.contributor.author |
Massia, SP
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dc.contributor.author |
Alford, TL
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dc.contributor.author |
Mayer, JW
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dc.date.accessioned |
2007-06-12T07:39:48Z |
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dc.date.available |
2007-06-12T07:39:48Z |
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dc.date.issued |
2006-11 |
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dc.identifier.citation |
Adams, D, et al. 2006. Microwave annealing for preparation of crystalline hydroxyapatite thin films. Journal of Materials Science, vol. 41(21), pp 7150-7158 |
en |
dc.identifier.issn |
0022-2461 |
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dc.identifier.uri |
http://hdl.handle.net/10204/558
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dc.description |
Copyright: 2006 Springer |
en |
dc.description.abstract |
A sol was spun on single crystal silicon substrates at a spin-rate of 3000–5000 rpm followed by a low temperature cure to form a stable sol–gel/ silicon structure. Good quality crystalline HA films of thickness ~300–400 nm were obtained by annealing the sol–gel/Si structure in a conventional cavity applicator microwave system with a magnetron power of 1300 W, frequency of 2.45 GHz, and at a low processing temperature of 425°C for annealing times ranging from 2–60 min. X-ray Diffraction and FTIR analysis confirmed that the crystalline quality of the thin films were comparable or better than those heat-treated under the same processing conditions (temperature and time) in a Rapid Thermal Annealing (RTA) system. The RBS data suggests a composition corresponding to stoichiometric hydroxyapatite Ca10(PO4)6(OH)2, the major inorganic component of bone. The results showed that the HA film thickness decreases with increasing sol spin-rate. The HA films showed good biocompatibility because little monocyte adhesion occurred and hence no inflammatory response was activated in vitro. The potential of microwave annealing for rapid and low temperature processing of good crystalline quality HA thin films derived from sol–gel is demonstrated. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Springer |
en |
dc.subject |
Crystalline hydroxyapatite |
en |
dc.subject |
Microwave annealing |
en |
dc.subject |
HA thin films |
en |
dc.subject |
Sol-gel - silicon structures |
en |
dc.subject |
Crystal silicon substrates |
en |
dc.subject |
Materials sciences |
en |
dc.title |
Microwave annealing for preparation of crystalline hydroxyapatite thin films |
en |
dc.type |
Article |
en |
dc.identifier.apacitation |
Adams, D., Malgas, G., Smith, R., Massia, S., Alford, T., & Mayer, J. (2006). Microwave annealing for preparation of crystalline hydroxyapatite thin films. http://hdl.handle.net/10204/558 |
en_ZA |
dc.identifier.chicagocitation |
Adams, D, GF Malgas, RD Smith, SP Massia, TL Alford, and JW Mayer "Microwave annealing for preparation of crystalline hydroxyapatite thin films." (2006) http://hdl.handle.net/10204/558 |
en_ZA |
dc.identifier.vancouvercitation |
Adams D, Malgas G, Smith R, Massia S, Alford T, Mayer J. Microwave annealing for preparation of crystalline hydroxyapatite thin films. 2006; http://hdl.handle.net/10204/558. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Adams, D
AU - Malgas, GF
AU - Smith, RD
AU - Massia, SP
AU - Alford, TL
AU - Mayer, JW
AB - A sol was spun on single crystal silicon substrates at a spin-rate of 3000–5000 rpm followed by a low temperature cure to form a stable sol–gel/ silicon structure. Good quality crystalline HA films of thickness ~300–400 nm were obtained by annealing the sol–gel/Si structure in a conventional cavity applicator microwave system with a magnetron power of 1300 W, frequency of 2.45 GHz, and at a low processing temperature of 425°C for annealing times ranging from 2–60 min. X-ray Diffraction and FTIR analysis confirmed that the crystalline quality of the thin films were comparable or better than those heat-treated under the same processing conditions (temperature and time) in a Rapid Thermal Annealing (RTA) system. The RBS data suggests a composition corresponding to stoichiometric hydroxyapatite Ca10(PO4)6(OH)2, the major inorganic component of bone. The results showed that the HA film thickness decreases with increasing sol spin-rate. The HA films showed good biocompatibility because little monocyte adhesion occurred and hence no inflammatory response was activated in vitro. The potential of microwave annealing for rapid and low temperature processing of good crystalline quality HA thin films derived from sol–gel is demonstrated.
DA - 2006-11
DB - ResearchSpace
DP - CSIR
KW - Crystalline hydroxyapatite
KW - Microwave annealing
KW - HA thin films
KW - Sol-gel - silicon structures
KW - Crystal silicon substrates
KW - Materials sciences
LK - https://researchspace.csir.co.za
PY - 2006
SM - 0022-2461
T1 - Microwave annealing for preparation of crystalline hydroxyapatite thin films
TI - Microwave annealing for preparation of crystalline hydroxyapatite thin films
UR - http://hdl.handle.net/10204/558
ER -
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en_ZA |