Publication: Characteristics of 45S5 bioglass-ceramics using natural raw materials
0
0
Issued Date
2012
Resource Type
File Type
application/pdf
ISSN
10226680
Other identifier(s)
2-s2.0-84860829095
Rights Holder(s)
Scopus
Bibliographic Citation
Advanced Materials Research. Vol 506, No. (2012), p.174-177
Suggested Citation
Leenakul W., Pisitpipathsin N., Kantha P., Tawichai N., Tigunta S., Eitssayeam S., Rujijanagul G., Pengpat K., Munpakdee A. Characteristics of 45S5 bioglass-ceramics using natural raw materials. Advanced Materials Research. Vol 506, No. (2012), p.174-177. doi:10.4028/www.scientific.net/AMR.506.174 Retrieved from: https://hdl.handle.net/20.500.14740/7056
Abstract
The aim of this work was to analyze the effect of using rice husk ash (RHA) and bovine bone as raw materials of glass-ceramics based on the SiO 2-Na 2O-CaO-P 2O 5 system on their physical, mechanical properties and bioactivity. All of the investigated compositions were prepared by melting the glass mixtures at 1300°C for 3 h. The resulting glass samples were heated at different temperatures ranging from 600 to 1000°C with fixed dwell-time for 2 h for crystallization. Phase identification of the prepared glass ceramics was carried out by X-Ray diffraction (XRD) and scanning electron microscope (SEM) techniques. In addition, in vitro test was carried out in stimulated body fluid (SBF). Differential thermal analysis (DTA) showed that the glass transition occurred at 505°C and crystallization at 700°C. The main crystalline phase form in most glass ceramics is a sodium calcium silicate. The optimum heat treatment temperature, at which the maximum mechanical value (620 HV) could be obtained, is around 1000°C. After incubation in SBF for 7 days, all of the samples show good bioactivity in vitro, as evident by the formation of bone like apatite phase. © (2012) Trans Tech Publications.
Subject(s)
45S5 bioglass
Bioactive
Bone like apatite
Bovine bone
Crystalline phase
Glass mixture
Glass samples
Heat treatment temperature
In-vitro
In-vitro tests
Phase identification
Rice husk ash
Sintering temperatures
Biological materials
Bone
Differential thermal analysis
Glass transition
Mechanical properties
Phosphate minerals
Physical properties
Scanning electron microscopy
Sintering
Sodium
X ray diffraction
Glass ceramics
Bioactive
Bone like apatite
Bovine bone
Crystalline phase
Glass mixture
Glass samples
Heat treatment temperature
In-vitro
In-vitro tests
Phase identification
Rice husk ash
Sintering temperatures
Biological materials
Bone
Differential thermal analysis
Glass transition
Mechanical properties
Phosphate minerals
Physical properties
Scanning electron microscopy
Sintering
Sodium
X ray diffraction
Glass ceramics