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中南大学学报(自然科学版)

Journal of Central South University

第31卷    第1期    总第131期    2000年2月

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文章编号:1004-0609(2000)01-0117, -03
钛渣中TiO2作晶核剂对玻璃晶化的影响
李 彬1,齐琳琳2,隋智通3

(1.佳木斯大学化学与药学院,佳木斯154002; 2.西南交通大学,成都610031;

3.东北大学材料与冶金学院,沈阳110006)

摘 要:

 

关键字: 钛渣;二氧化钛;晶核剂;玻璃晶化

Effect of TiO2 in slags bearing titanium on nucleation and crystallization of glass
LI Bin1, QI Lin-lin2, SUI Zhi-tong3

1. School of Chemistry and Pharmacy, Jiamusi University, Jiamusi 154002, P.R.China;
2. Southwest Jiaotong University, Chengdu 610031, P.R.China;
3. School of Materials and Metallurgy, Northeastern University, Shenyang 110006, P.R.China

Abstract:The glass ceramics were prepared by using titanium slags and ferrous tailings as the raw materials, in which TiO2 functioned as the nucleation agents. The effect of TiO2 content on the crystallization was studied. The crystallization process was investigated by DTA, XRD and SEM. It was showed that the bulk crystallization process occurs when the content of TiO2 is 10%. The activation energy for crystal growth, Ec=190.6 kJ·mol-1, and the kinetic parameter m=3 were evaluated by DTA and kinetic method. The main crystal phase of glass ceramic is hedenbergite and has good strength property. It was found that TiO2 and Fe2O3 can efficiently induce nucleation and crystallization. When the TiO2 content is fewer than 10%, the surface crystallization occurs.

 

Key words: slags bearing titanium; titania; nucleation; glass crystallization

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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