WU Dandan, YU Pingli

(College of Mater. Sci.& Eng., Huaqiao University, Quanzhou 362021)

Abstract: In this paper, a main application of stone-powder in glass--ceramics was investigated. The results showed: When less than 2mol% Fe₂O₃was introduced into glass, the crystallization parameter of glass--ceramics was possibly increased, and almost all the samples· temperature range from Tp to Tg overlapped partly, that means glass samples can be crystallized at the same temperature. When more than 2mol% Fe₂O₃ was introduced into glass, the crystallization parameter was decreased, and the temperature range from Tp to Tg was narrowed, that indicated the crystallization capability of glass was increased. In addition, added Fe₂O₃ content has not distinct impact on the main crystalline phases of glass--ceramics, and crystallization time can be greatly decreased by using micro-powder to prepare glass--ceramics. The above results were quite useful for the further application of stone-power.

Keywords: stone-power, glass--ceramics, oxide of iron, crystallization parameter