In situ high-temperature X-ray study of ZnO–TeO2 glass crystallization under ultrasonic treatment

Abstract The crystallization behavior of x ZnO · 100 − x TeO 2 ( x = 20−30 mol%) glasses after ultrasonic treatment in an alcohol suspension of ZnO particles was investigated using in situ high-temperature X-ray diffraction experiments in an ultra-fast measurement system. The ultrasonic treatment strongly affected the first and second crystallization temperatures of a 20ZnO · 80TeO 2 glass (α-TeO 2 and Zn 2 Te 3 O 8 crystallizations, respectively). An unstable phase, ZnTeO 3 typically seen in non-treated glasses, was not observed after the ultrasonic treatment. The first crystallization temperature of a 30ZnO · 70TeO 2 glass was only slightly affected by the ultrasonic treatment. The ultrasonic treatment is assumed to promote the formation of the nucleus with the Zn 2 Te 3 O 8 -like atomic order through rearrangements of Zn atoms during crystallization process.