Materials characterization of potassium sodium niobate based tellurite glass-ceramics
In this research, materials characterization of transparent glass-ceramics containing ferroelectric potassium sodium niobate (K0.5Na 0.5)NbO3 (KNN) crystals in a tellurite glass system were studied. The samples were prepared via an incorporation method. Glass-ceramics containing KNN crystals were su...
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| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84878697959&partnerID=40&md5=eb4aaa09bdf0b8e9b96732c7d20d2300 http://cmuir.cmu.ac.th/handle/6653943832/7061 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | In this research, materials characterization of transparent glass-ceramics containing ferroelectric potassium sodium niobate (K0.5Na 0.5)NbO3 (KNN) crystals in a tellurite glass system were studied. The samples were prepared via an incorporation method. Glass-ceramics containing KNN crystals were successfully fabricated by mixing KNN calcined powder with TeO2 of about 70 and 80 mol% and melting at 800°C for 15 min in a platinum crucible. The prepared glasses were then subjected to heat treatment at 350-550°C. The optical properties of the samples were characterized by UV-Vis-NIR and ellipsometer. It was found that heat treatment temperature had significantly affected the optical properties. XRD patterns of the glass-ceramics revealed an amorphous-like structure with different degrees of crystallinity. SEM results confirmed the XRD data, where the degree of crystallinity increased with increasing heat treatment temperature. Copyright © Taylor & Francis Group, LLC. |
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