One-step Crystallization Kinetic Parameters of the Glass-ceramics Prepared from Stainless Steel Slag and Pickling Sludge
Shen-gen ZHANG1,Jian YANG1,Bo LIU1,De-an PAN1,Chun-li WU1,Alex A. VOLINSKY2
1. Institute for Advanced Materials and Technology, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2. Department of Mechanical Engineering, University ofSouth Florida, Tampa 33620, Florida, USA
One-step Crystallization Kinetic Parameters of the Glass-ceramics Prepared from Stainless Steel Slag and Pickling Sludge
Shen-gen ZHANG1,Jian YANG1,Bo LIU1,De-an PAN1,Chun-li WU1,Alex A. VOLINSKY2
1. Institute for Advanced Materials and Technology, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2. Department of Mechanical Engineering, University ofSouth Florida, Tampa 33620, Florida, USA
ժҪ One-step crystallization is one of the most energy conserving methods for glass-ceramics preparation. However, only a few kinetics studies focused on the glass-ceramics prepared by the one-step crystallization. The one-step crystallization kinetic parameters were studied using differential scanning calorimetry. The activation energy (Ea) and the Avrami parameter (n) were calculated as 152.79 kJ��mol-1 and 4.39, respectively. These parameters indicate that continuous nucleation and three-dimensional crystal growth are the dominating mechanisms in the one-step crystallization process of the parent glass. The properties of the obtained glass-ceramics can be compared to the glass-ceramics prepared by the two-stage heat treatment and sintering method. This crystallization kinetics research can be used to evaluate the one-step crystallization potential of a parent glass.
Abstract��One-step crystallization is one of the most energy conserving methods for glass-ceramics preparation. However, only a few kinetics studies focused on the glass-ceramics prepared by the one-step crystallization. The one-step crystallization kinetic parameters were studied using differential scanning calorimetry. The activation energy (Ea) and the Avrami parameter (n) were calculated as 152.79 kJ��mol-1 and 4.39, respectively. These parameters indicate that continuous nucleation and three-dimensional crystal growth are the dominating mechanisms in the one-step crystallization process of the parent glass. The properties of the obtained glass-ceramics can be compared to the glass-ceramics prepared by the two-stage heat treatment and sintering method. This crystallization kinetics research can be used to evaluate the one-step crystallization potential of a parent glass.
��������:the National Natural Science Foundation of China;the National Key Project of the Scientific and Technical Support Program of China;the National Hi-tech R&D Program of China;The Fundamental Research Funds for the Central Universities;China Postdoctoral Science Foundation Funded Project
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E-mail: yangjian_ustb@sina.cn
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Shen-gen ZHANG,Jian YANG,Bo LIU,De-an PAN,Chun-li WU,Alex A. VOLINSKY. One-step Crystallization Kinetic Parameters of the Glass-ceramics Prepared from Stainless Steel Slag and Pickling Sludge[J]. �й������ڿ���, 2016, 23(3): 220-224.
Shen-gen ZHANG,Jian YANG,Bo LIU,De-an PAN,Chun-li WU,Alex A. VOLINSKY. One-step Crystallization Kinetic Parameters of the Glass-ceramics Prepared from Stainless Steel Slag and Pickling Sludge. Chinese Journal of Iron and Steel, 2016, 23(3): 220-224.
2016, Vol. 23 
