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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| Format: | Thesis |
| Language: | English |
| Published: |
2005
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| Online Access: | http://eprints.utm.my/4181/ http://eprints.utm.my/4181/1/MohdHelmyHashimMFS2005.pdf |
| _version_ | 1848890739128270848 |
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| author | Hashim, Mohd. Helmy |
| author_facet | Hashim, Mohd. Helmy |
| author_sort | Hashim, Mohd. Helmy |
| building | UTeM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T20:46:51Z |
| format | Thesis |
| id | utm-4181 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:46:51Z |
| publishDate | 2005 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-41812018-01-15T07:32:09Z http://eprints.utm.my/4181/ Preparation and properties characterization of P2O5-KNO3-K2O glass 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 NonPeerReviewed application/pdf en http://eprints.utm.my/4181/1/MohdHelmyHashimMFS2005.pdf Hashim, Mohd. Helmy (2005) Preparation and properties characterization of P2O5-KNO3-K2O glass. Masters thesis, Universiti Teknologi Malaysia, Faculty of Science. |
| spellingShingle | QC Physics Hashim, Mohd. Helmy Preparation and properties characterization of P2O5-KNO3-K2O glass |
| title | 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_short | Preparation and properties characterization of P2O5-KNO3-K2O glass |
| title_sort | preparation and properties characterization of p2o5-kno3-k2o glass |
| topic | QC Physics |
| url | http://eprints.utm.my/4181/ http://eprints.utm.my/4181/1/MohdHelmyHashimMFS2005.pdf |