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Influence of the ch...
Influence of the chemical composition on the phase constitution and the elastic properties of RF sputtered hydrozyapatite coatings
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Snyders, Rony (författare)
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Bousser, Etienne (författare)
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Music, Denis (författare)
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- Jensen, Jens (författare)
- Uppsala universitet,Jonfysik
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Hocquet, Stephane (författare)
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Schneider, Jochen M. (författare)
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(creator_code:org_t)
- Wiley, 2008
- 2008
- Engelska.
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Ingår i: Plasma Processes and Polymers. - : Wiley. - 1612-8850 .- 1612-8869. ; 5:2, s. 168-174
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We have studied the influence of chemical composition on the constitution and elastic properties of dense radio-frequency (RF)-sputtered hydroxyapatite (HA) coatings. The chemical composition was modified by varying the RF sputtering power density (P-D). As the P-D was increased by 240%, the Ca/P ratio measured by X-ray photoelectron spectroscopy increased from approximate to 1.51 to approximate to 1.82. X-ray diffraction indicates phase pure hexagonal HA except for the sample prepared at the highest P-D where CaO and Ca-3(PO4)(2) also form. Deviations from the stoichiometric Ca/P ratio result in reduction of the elastic modulus. For Ca/P = 1.51 +/- 0.02, the elastic modulus decreases by approximate to 15%. This maybe due to incorporation of Ca vacancies in the lattice, while for Ca/P = 1.82 +/- 0.02, the average elastic modulus decreases by approximate to 10% due to formation of additional phases.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- biomaterials
- coatings
- elastic properties
- hydroxyapatite
- magnetron sputtering
- phase constitution
- Ion physics
- Jonfysik
- Ion Physics
- Jonfysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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