The Crystallization Behaviors of SiO2-Al2O3-CaO-MgO-TiO2 Glass-Ceramic Systems

Author:

Lai Feifei,Leng Mei,Li Jiangling,Liu Qingcai

Abstract

To evaluate the crystallization behavior of Ti-bearing blast furnace slag-based glass ceramics, SiO2-Al2O3-CaO-MgO-TiO2 systems with various TiO2 were investigated. The crystallization process and mechanical properties were analyzed. The results show that with TiO2 increasing, exothermic peak temperature (Tp) decreases, and the crystallization is promoted by the introduction of TiO2. A small amount of TiO2 (≤4%) addition can significantly promote crystallization, and when TiO2 continues to increase, the crystallization is decreased slightly. The Avrami parameter (n) of all samples is less than 4, indicating that in prepared glass-ceramics, it is hard to achieve three-dimensional crystal growth. The main crystalline phase is akermanite–gehlenite. The addition of TiO2 has no obvious effect on the type of main crystalline phase. The prepared glass-ceramic with 4% TiO2 show good mechanical properties with the hardness values of 542.67 MPa. The recommended content of TiO2 is 4% for preparing glass-ceramics.

Funder

Natural Science Foundation of China

Fundamental and Frontier Research Project of Chongqing

China Postdoctoral Science Foundation

Publisher

MDPI AG

Subject

Inorganic Chemistry,Condensed Matter Physics,General Materials Science,General Chemical Engineering

Reference39 articles.

1. Present situation and development trend of blast furnace slag treatment;Wang;Iron Steel,2007

2. An approach to employ titanium-bearing blast-furnace slag to prepare Ti and Al–Si alloys

3. Study on property of composite cement prepared by titanium slag-CFBC fly ash as cement admixture;Zhang;Cement,2016

4. Glass-ceramics: Their production from wastes—A Review

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