Title: Effects of heat treatment on structure of glass-ceramics prepared with oil shale residue
Abstract: The glass-ceramics was prepared with oil shale residue as primary material.Effects of nucleating temperature and crystallization temperature on the structure of glass-ceramics were analyzed by using DTA,XRD,SEM and FT-IR.The results show that the main crystalline phase of the glass-ceramics is hedenbergite,and anorthite is the minor crystalline phase.With increasing of heat treatment temperature,the crystals become more regular.The crystal size and crystallization rate increase first,then decrease and finally increase again.In the optimal heat treatment condition(850℃×100min+980℃×80min),the glass-ceramics forms fibroid minicrystal structure,the FT-IR absorption bands appeare obvious split,and the micro-hardness and compressive strength achieve the maximum.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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