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Influence of Ta2O5 doping on mechanical and biological properties of silicate glass-ceramics

Materials Science-Poland
Volume 34 (2016): Issue 1 (March 2016)
By:
Open Access
|Apr 2016

Figures & Tables

Fig. 1

The DSC thermogram of tantalum based glassceramics showing crystallization temperature (Tc).
The DSC thermogram of tantalum based glassceramics showing crystallization temperature (Tc).

Fig. 2

Comparative X-ray diffraction patterns of (a) Ta0, (b) Ta0.1, (c) Ta0.5, (d) Ta1, (e)
Comparative X-ray diffraction patterns of (a) Ta0, (b) Ta0.1, (c) Ta0.5, (d) Ta1, (e)

Fig. 3

Change in crystallite size with Ta2O5 concentration using Scherer’s formula.
Change in crystallite size with Ta2O5 concentration using Scherer’s formula.

Fig. 4

SEM micrographs of surfaces of glass-ceramics (a) Ta0, (b) Ta0.1, (c) Ta0.5, (d) Ta1 and (e) Ta3, respectively.
SEM micrographs of surfaces of glass-ceramics (a) Ta0, (b) Ta0.1, (c) Ta0.5, (d) Ta1 and (e) Ta3, respectively.

Fig. 5

The variation of grain size and porosity with change in Ta2O5 concentration (mol%).
The variation of grain size and porosity with change in Ta2O5 concentration (mol%).

Fig. 6

Apparent density and compressive strength as function of Ta2O5 concentration in mol%.
Apparent density and compressive strength as function of Ta2O5 concentration in mol%.

Fig. 7

The XRD patterns for (a) Ta0, (b) TA0.1, (c) Ta0.5, (d) Ta1 and (e) Ta3 glass-ceramics after 30-day immersion in Stimulated Body Fluid (SBF).
The XRD patterns for (a) Ta0, (b) TA0.1, (c) Ta0.5, (d) Ta1 and (e) Ta3 glass-ceramics after 30-day immersion in Stimulated Body Fluid (SBF).

Fig. 8

SEM-EDX micrographs of surfaces of glassceramics (a) Ta0, (b) Ta0.1, (c) Ta0.5, (d) Ta1 and (e) Ta3 after soaking in SBF for 30 days.
SEM-EDX micrographs of surfaces of glassceramics (a) Ta0, (b) Ta0.1, (c) Ta0.5, (d) Ta1 and (e) Ta3 after soaking in SBF for 30 days.

Glass transition temperature Tg and crystallization temperature Tc_

Sample IDChemical composition (mol%)Glass transition temperature [Tg] °CCrystallization temperature [Tc] °C
Ta046.1SiO2–0Ta2O5–26.9CaO–24.4Na2O–2.6P2O5546.9837.7
Ta01 46.0SiO2–0.1Ta2O5–26.9CaO–24.4Na2O–2.6P2O5540.1824.6
Ta05 45.6SiO2–0.5Ta2O5–26.9CaO–24.4Na2O–2.6P2O5506.8818.9
Ta145.1SiO2–1Ta2O5–26.9CaO–24.4Na2O–2.6P2O5449.4763.1
Ta343.1SiO2–3Ta2O5–26.9CaO–24.4Na2O–2.6P2O5312.4709.6
DOI: https://doi.org/10.1515/msp-2016-0013 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 13 - 18
Submitted on: Jan 17, 2015
Accepted on: Nov 23, 2015
Published on: Apr 27, 2016
Published by: Sciendo
In partnership with: Paradigm Publishing Services
Publication frequency: 4 times per year
Keywords:
compressive strength,
bioactivity,
TaO,
glass-ceramics
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2016 Madeeha Riaz, Rehana Zia, Farhat Saleemi, Farooq Bashir, Riaz Ahmad, Tousif Hossain, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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