Preparation of Potassium Sodium Niobate in Tellurite Glass System Doped with Er2O3
P Yongsiri, P Mhuangthong, A Munpakdee… - Ferroelectrics, 2014 - Taylor & Francis
P Yongsiri, P Mhuangthong, A Munpakdee, K Pengpat
Ferroelectrics, 2014•Taylor & FrancisIn the present study, potassium sodium niobate (KNN) doped with Er2O3 in TeO2 glasses
were successfully prepared using melting-quenching method. The glass composition of
70KNN-30TeO2 mol% doped with 1 mol% of Er2O3 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 …
were successfully prepared using melting-quenching method. The glass composition of
70KNN-30TeO2 mol% doped with 1 mol% of Er2O3 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 …
In the present study, potassium sodium niobate (KNN) doped with Er2O3 in TeO2 glasses were successfully prepared using melting-quenching method. The glass composition of 70KNN-30TeO2 mol% doped with 1 mol% of Er2O3 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.
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