The Influence of Bi2O3-ZnO-B2O3 Glass melting in Quartz Glass Crucible and Corundum Crucible on Properties
Bi2O3-ZnO-B2O3 series lead-free low-melting glass was prepared by high temperature melt-quenching method using quartz glass crucible and corundum crucible under the same conditions.The glass powder of Bi2O3-ZnO-B2O3 series was characterized by X-ray powder diffractometer,Thermal dilatometer,X-ray photoelectron spectroscopy,FTIR spectrometer and Raman spectroscopy.The differences between the Bi2O3-ZnO-B2O3 glass powders melted in quartz glass crucible and corundum crucible were compared,and the effects of two types of crucible materials(quartz glass crucible and corundum crucible)on the properties of the glass were analyzed.The results showed that when preparing bismuthate glass with less SiO2 and Al2O3 or more Bi2O3,using a quartz glass crucible for melting glass with excellent properties and small experimental errors.However,if corundum crucible was used,it will corrode the inner wall of the crucible,leading to the introduction of Al2O3 into the glass melt.While this improved the thermal stability of the glass,it reduced its chemical stability.
quartz glass cruciblelow melting point glass powderwater resistanceacid resistance
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