Preparation and properties characterization of P2O5-KNO3-K2O glass
A series of glass based on 50P2O5-xKNO3-(50-x) K2O system where 0 < x £ 50 mol % has successfully been prepared using melt-quenched technique. The glass crystallinity has been confirmed using X-Ray Diffraction (XRD) analysis while the microhardness is measured using Vickers indenter. It is found...
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2005
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my-utm-ep.41812018-01-15T07:32:09Z Preparation and properties characterization of P2O5-KNO3-K2O glass 2005-10 Hashim, Mohd. Helmy QC Physics A series of glass based on 50P2O5-xKNO3-(50-x) K2O system where 0 < x £ 50 mol % has successfully been prepared using melt-quenched technique. The glass crystallinity has been confirmed using X-Ray Diffraction (XRD) analysis while the microhardness is measured using Vickers indenter. It is found that the microhardness is in the range of 146 Hv to178 Hv as the mol % of KNO3 content increases. The glass density, which is measured using the digital balance, is found to be in the range of 2.3820 gcm-3 to 2.4232 gcm-3 as the mol % of KNO3 content increases. The molecular bond structures and the characteristic of H-OH molecular vibrations in the glass are investigated using Infrared absorption spectrometer in the range of 370 cm-1 to 3800 cm-1. It has been found that the nitrogen incorporated into the glass network by replacing the bridging oxygen. It is also found out that the increase in the mol % of KNO3 content will cause the corrosion rate of the glass in pH 1, pH 3, pH 5 and pH 7 solutions to fall from 5.83 x 10-3 gcm-2min-1 to 0.25 x 10-3 gcm-2min-1. All of the solutions experience the increase in pH value after the 20 minutes corrosion test. 2005-10 Thesis http://eprints.utm.my/id/eprint/4181/ http://eprints.utm.my/id/eprint/4181/1/MohdHelmyHashimMFS2005.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science |
| institution |
Universiti Teknologi Malaysia |
| collection |
UTM Institutional Repository |
| language |
English |
| topic |
QC Physics |
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QC Physics Hashim, Mohd. Helmy Preparation and properties characterization of P2O5-KNO3-K2O glass |
| description |
A series of glass based on 50P2O5-xKNO3-(50-x) K2O system where 0 < x £ 50 mol % has successfully been prepared using melt-quenched technique. The glass crystallinity has been confirmed using X-Ray Diffraction (XRD) analysis while the microhardness is measured using Vickers indenter. It is found that the microhardness is in the range of 146 Hv to178 Hv as the mol % of KNO3 content increases. The glass density, which is measured using the digital balance, is found to be in the range of 2.3820 gcm-3 to 2.4232 gcm-3 as the mol % of KNO3 content increases. The molecular bond structures and the characteristic of H-OH molecular vibrations in the glass are investigated using Infrared absorption spectrometer in the range of 370 cm-1 to 3800 cm-1. It has been found that the nitrogen incorporated into the glass network by replacing the bridging oxygen. It is also found out that the increase in the mol % of KNO3 content will cause the corrosion rate of the glass in pH 1, pH 3, pH 5 and pH 7 solutions to fall from 5.83 x 10-3 gcm-2min-1 to 0.25 x 10-3 gcm-2min-1. All of the solutions experience the increase in pH value after the 20 minutes corrosion test. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Hashim, Mohd. Helmy |
| author_facet |
Hashim, Mohd. Helmy |
| author_sort |
Hashim, Mohd. Helmy |
| title |
Preparation and properties characterization of P2O5-KNO3-K2O glass |
| title_short |
Preparation and properties characterization of P2O5-KNO3-K2O glass |
| title_full |
Preparation and properties characterization of P2O5-KNO3-K2O glass |
| title_fullStr |
Preparation and properties characterization of P2O5-KNO3-K2O glass |
| title_full_unstemmed |
Preparation and properties characterization of P2O5-KNO3-K2O glass |
| title_sort |
preparation and properties characterization of p2o5-kno3-k2o glass |
| granting_institution |
Universiti Teknologi Malaysia, Faculty of Science |
| granting_department |
Faculty of Science |
| publishDate |
2005 |
| url |
http://eprints.utm.my/id/eprint/4181/1/MohdHelmyHashimMFS2005.pdf |
| _version_ |
1747814498601795584 |