Preparation of potassium sodium niobate in tellurite glass system doped with Er<inf>2</inf>O<inf>3</inf>
In the present study, potassium sodium niobate (KNN) doped with Er 2 O 3 in TeO 2 glasses were successfully prepared using melting-quenching method. The glass composition of 70KNN-30TeO2 mol% doped with 1 mol% of Er 2 O 3 has been chosen. A batch was subsequently melted at 800°C and 900°C for 30-60...
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| Main Authors: | , , , |
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| Format: | Journal |
| Published: |
2018
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| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84893047133&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45222 |
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| Institution: | Chiang Mai University |
| Summary: | In the present study, potassium sodium niobate (KNN) doped with Er 2 O 3 in TeO 2 glasses were successfully prepared using melting-quenching method. The glass composition of 70KNN-30TeO2 mol% doped with 1 mol% of Er 2 O 3 has been chosen. A batch was subsequently melted at 800°C and 900°C for 30-60 min and heated at the temperature ranging between 300-530°C in order to form the glass ceramics with desired crystal phases. XRD results showed that KNN crystals distributed over the glass-ceramic samples. From SEM observation, it was found that nano-crystals of several phases were precipitated in all glass-ceramic matrices. Dielectric constant increased with increasing heat treatment temperature. © 2014 Taylor and Francis Group, LLC. |
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