RKKP bioactive glass-ceramic material through an aqueous sol-gel process
作者： Mariangela Lombardi , Ilaria Cacciotti , Alessandra Bianco , Laura Montanaro
DOI: 10.1016/J.CERAMINT.2014.10.064
关键词:
摘要: Abstract In this work, the synthesis of RKKP bioactive glass composition by an aqueous sol-gel method is reported. A complete and systematic characterisation produced material was carried out. Characteristic functional groups were detected Fourier transform infrared ( FT-IR ) spectroscopy, thermal behaviour investigated simultaneous thermogravimetric differential analysis TG-DTA ), crystallisation kinetics phase evolution followed X-ray diffraction XRD analyses. The microstructure pellets thermally treated at properly selected temperatures means Scanning Electron Microscopy (SEM) equipped with Energy Dispersive X-Ray Spectrometry (EDS). Thermal dilatometry (peak temperature 1100 °C) performed on bars pressed 400 MPa; final densities microstructures also evaluated. expected glass-in-glass separation carbonation induced shelf-aging powders in common atmosphere experimentally demonstrated. After treatment high temperature, experienced a drastic evolution, developing highly porous matrix, agreement de-densification phenomenon dilatometry.
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