Table of Contents
Journal of Metallurgy
Volume 2012 (2012), Article ID 954021, 6 pages
http://dx.doi.org/10.1155/2012/954021
Research Article

Mutual Influence of Special Components in Baotou Steel Blast Furnace Slag on the Crystallization Behavior of Glass

1College of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
2College of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China

Received 18 June 2012; Revised 7 September 2012; Accepted 10 September 2012

Academic Editor: Shien-Ping Feng

Copyright © 2012 Yici Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the process of glass-ceramics prepared with Baotou steel blast furnace slag, quartz sand, and other raw materials by melting method, the mutual influence of the special components such as CaF2, REXOY, TiO2, K2O, and Na2O in the blast furnace slag on the crystallization behavior of parent glass was investigated using differential thermal analysis (DTA) and X-ray diffraction (XRD). The results show that the special components in slag can reduce the crystallization temperature and promote crystallization of glass phase, which belongs to surface crystallization of glass, and they cannot play the role of the nucleating agent; the major crystal phase composed of diopside, diopside containing aluminum and anorthite, is slightly different from the expected main crystal phase of diopside. Therefore, the nucleating agents of proper species and quantity must be added into the raw materials in order to obtain glass-ceramics. The results have important theoretical guidance meaning for realizing industrial production of Baotou steel blast furnace slag glass-ceramics preparation.