Effect of particle size on kinetics crystallization of an iron-rich glass

被引：0
作者：
M. Romero
M. Kovacova
J. Ma. Rincón
机构：
[1] Institute Eduardo Torroja for Construction Sciences-CSIC,Group of Glassy and Ceramic Materials, Department of Building Construction Systems
[2] Slovak Academy of Sciences,Department of Physical and Physicochemical Mineral Processing Methods, Institute of Geotechnics
来源：
Journal of Materials Science | 2008年 / 43卷
关键词：
Differential Thermal Analysis; Crystallization Fraction; Crystallization Kinetic; Differential Thermal Analysis Curve; Particle Size Fraction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of glass particle size on the crystallization kinetics of an iron-rich glass from a nickel leaching waste has been investigated by means of differential thermal analysis (DTA). The results show that the crystallization of a pyroxene phase occurs by bulk nucleation from a constant number of nuclei. The crystallization mode and the dimensionality of crystals are strongly dependent on the glass particle size, 100 μm being the critical size. Glass fractions with particle size >100 μm show three-dimensional crystal growth controlled by diffusion, whereas a particle size <100 μm leads to an interface reaction mechanism with two-dimensional growth of crystals.
引用
收藏
页码：4135 / 4142
页数：7
相关论文
共 104 条
  • [1] Partridge G(1994)Determination of the activation energy for crystal growth by differential thermal analysis Glass Technol 35 116-966
  • [2] Partridge G(1994)undefined Glass Technol 35 171-undefined
  • [3] James PF(1995)undefined J Non-Cryst Solids 181 1-undefined
  • [4] Pannhorst W(1997)undefined J Non-Cryst Solids 219 198-undefined
  • [5] Bocola W(1972)undefined Energia Nucleare 19 390-undefined
  • [6] Donato A(1972)undefined Energia Nucleare 19 459-undefined
  • [7] Donato A(1987)undefined Bol Soc Esp Ceram Vidr 26 227-undefined
  • [8] Bocola W(1997)undefined J Mater Sci 32 5851-undefined
  • [9] Hidalgo M(2005)undefined J Nucl Mater 345 19-undefined
  • [10] Rincón JMA(2005)undefined J Nucl Mater 345 31-undefined
12345678910