کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1474013 | 991072 | 2015 | 6 صفحه PDF | دانلود رایگان |

The phase equilibria and liquidus temperatures in the binary SiO2–ZnO system in equilibrium with air (PO2 = 21278.25 Pa) have been experimentally determined at temperatures between 1430 °C and 1690 °C. Equilibration at target temperature in an appropriate container material was achieved, followed by rapid quenching. The microstructure of the specimen was observed by a scanning electron microscope from polished sections. The phase compositions were collected by an energy-dispersive X-ray spectroscopy (EDS), and confirmed by an electron probe X-ray microanalysis (EPMA). The only binary compound was found to be Zn2SiO4. Two binary eutectics were determined at 1442 ± 2 °C and 0.52 ± 0.01 mole fraction of ZnO, and at 1497 ± 2 °C and 0.71 ± 0.01 mole fraction of ZnO, respectively. The results were compared with the earlier studies available for this system.
Journal: Journal of the European Ceramic Society - Volume 35, Issue 14, November 2015, Pages 4005–4010