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| Content Provider | Springer Nature Link |
|---|---|
| Author | Chaowu, Zhang Fen, Wang |
| Copyright Year | 2005 |
| Abstract | The tinting phenomena of iron oxide contained glasses were studied from aspects of the electronic configuration, the iron ions coordination fields and the ions structure in glass. Several iron ion tinting forms at different redox or COD (chemical oxygen demand) conditions and their influential factors were given necessary explanations. The results reveal that the Fe$^{3+}$−O−Fe$^{2+}$ structure is the real tinting reason of iron involved glasses, whereas the Si$^{4+}$−O−Fe$^{3+}$ and Si$^{4+}$−O−Fe$^{2+}$ formulations modify the glass colours. Under oxidizing melting condition, the amount of 4/6-coordinated Fe$^{3+}$ increases and makes the glass colour yellowish. Conversely, reducing melting condition makes the 6-coordinated Fe$^{2+}$ increased and gives much blue tint to the glass. The conventional tank furnace melting the very strong reducing condition, which is of high COD glass batch, is not suitable. The high ratio of ferrous/ferric in glass can be obtained with a new refining technology which contains no or little amount of refining agent. |
| Starting Page | 8 |
| Ending Page | 11 |
| Page Count | 4 |
| File Format | |
| ISSN | 10002413 |
| Journal | Journal of Wuhan University of Technology-Mater. Sci. Ed. |
| Volume Number | 20 |
| Issue Number | 2 |
| e-ISSN | 19930437 |
| Language | English |
| Publisher | Wuhan University of Technology |
| Publisher Date | 2005-01-01 |
| Publisher Place | Wuhan |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | ferreous glass iron ions tinting structure analysis coordination theory glass melting Materials Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Science |
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