Scholars' Mine
Missouri S&T
Research Repository
Curtis Laws Wilson Library
400 W. 14th Street
Rolla, MO 65409-0060
scholarsmine@mst.edu
| Title: | Determining kinetic parameters for isothermal crystallization of glasses |
| Author (s): | Ray, C.S. Zhang, T. Reis, Signo Tadeu Dos Brow, Richard K. |
| Department/Lab Affiliations: | Materials Research Center Materials Science & Engineering University Transportation Center |
| Keywords: | Avrami parameter kinetic parameters non-isothermal crystallization |
| Issue Date: | 2007-02-16 |
| Publisher: | Wiley/ Blackwell (Formerly Blackwell or Blackwell Synergy) |
| Citation: | Ray, C.S., Zhang, T., Reis, S.T., and Brow, Richard K. "Determining Kinetic Parameters for Isothermal Crystallization of Glasses.", Journal of the American Ceramic Society, vol. 90, no. 3, pp. 769-773, 2007. |
| Abstract: | Non-isothermal crystallization techniques are frequently used to determine the kinetic parameters for crystallization in glasses. The techniques are experimentally simple and quick, compared with isothermal techniques. However, the analytical models used for non-isothermal data analysis, that were derived from models originally developed for describing isothermal transformation kinetics, are fundamentally flawed. The present paper describes a technique for determining the kinetic parameters for isothermal crystallization in glasses, which eliminates most of the common problems that generally make the study of isothermal crystallization laborious and time consuming. In this technique, the volume fraction of a glass that is crystallized as a function of time during an isothermal hold was determined in a separate experiment using differential thermal analysis. The activation energy (345±10 kJ/mole) and Avrami parameter (0.89±0.09) for crystallization of Li2O·2SiO2 glass determined by the present technique are consistent with the similar values reported in the literature. |
| Type: | Article - Journal text |
| In Title: | Journal of the American Ceramic Society |
| Copyright Notice: | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. Pre-print: author can archive; Post-print: author can archive FULL COPYRIGHT INFORMATION: |
| Publisher URL: | |
| Link to this page: |
| title | Determining kinetic parameters for isothermal crystallization of glasses |
| contributor.author | Ray, C.S. |
| contributor.author | Zhang, T. |
| contributor.author | Reis, Signo Tadeu Dos |
| contributor.author | Brow, Richard K. |
| contributor.deptlab | Materials Research Center |
| contributor.deptlab | Materials Science & Engineering |
| contributor.deptlab | University Transportation Center |
| subject | Avrami parameter |
| subject | kinetic parameters |
| subject | non-isothermal crystallization |
| date.issued | 2007-02-16 |
| publisher | Wiley/ Blackwell (Formerly Blackwell or Blackwell Synergy) |
| identifier.citation | Ray, C.S., Zhang, T., Reis, S.T., and Brow, Richard K. "Determining Kinetic Parameters for Isothermal Crystallization of Glasses.", Journal of the American Ceramic Society, vol. 90, no. 3, pp. 769-773, 2007. |
| identifier.pub.URI | |
| description.abstract | Non-isothermal crystallization techniques are frequently used to determine the kinetic parameters for crystallization in glasses. The techniques are experimentally simple and quick, compared with isothermal techniques. However, the analytical models used for non-isothermal data analysis, that were derived from models originally developed for describing isothermal transformation kinetics, are fundamentally flawed. The present paper describes a technique for determining the kinetic parameters for isothermal crystallization in glasses, which eliminates most of the common problems that generally make the study of isothermal crystallization laborious and time consuming. In this technique, the volume fraction of a glass that is crystallized as a function of time during an isothermal hold was determined in a separate experiment using differential thermal analysis. The activation energy (345±10 kJ/mole) and Avrami parameter (0.89±0.09) for crystallization of Li2O·2SiO2 glass determined by the present technique are consistent with the similar values reported in the literature. |
| type | Article - Journal |
| type.DCMIType | text |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| rights | Pre-print: author can archive; Post-print: author can archive |
| rights.URI | |
| rights.URI | |
| relation.isPartOf | Journal of the American Ceramic Society |
| date.available | 2008-08-05T21:48:12Z |
| identifier.persist.URI |