Phosphate Glassy Network Depolymerization Induced by CaO Doping

Phosphate Glassy Network Depolymerization Induced by CaO Doping

The structure of xCaO·(100 −x)P 2 O 5 glass system with 25 ≤ x ≤ 40 mol.% was investigated by means of Raman and infrared spectroscopy. The characteristic bands due to the stretching and bending vibrations were identified and analyzed by the increase of CaO content. The structural changes induced by...

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Bibliographic Details
Published in:Particulate science and technology Vol. 28; no. 3; pp. 226 - 235
Main Authors: Toloman, D., Biris, A. R., Maniu, D., Bratu, I., Giurgiu, L. M., Biris, A. S., Ardelean, I.
Format: Journal Article
Language:English
Published: Philadelphia Taylor & Francis Group 01-05-2010
Taylor & Francis Ltd
Subjects:
Bands
Bend tests
Bending vibration
calcium phosphate glasses
Depolymerization
Distortion
Glass
Infrared spectroscopy
Networks
Phosphates
Polymerization
Raman
Spectrum analysis
Stretching
Vibration
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Summary:The structure of xCaO·(100 −x)P 2 O 5 glass system with 25 ≤ x ≤ 40 mol.% was investigated by means of Raman and infrared spectroscopy. The characteristic bands due to the stretching and bending vibrations were identified and analyzed by the increase of CaO content. The structural changes induced by the CaO presence in phosphatic matrix were determined and discussed in terms of the network depolymerization process and distortion of the PO 4 tetrahedra.
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ISSN:0272-6351
1548-0046
DOI:10.1080/02726351.2010.481581