Kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses
The kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses has been investigated using differential scanning calorimetery at different heating rates under non-isothermal conditions. The kinetic analysis of crystallization has been discussed using different theoretical approa...
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| Format: | Article |
| Language: | English |
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University of Novi Sad
2014-03-01
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| Series: | Processing and Application of Ceramics |
| Subjects: | |
| Online Access: | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2023%2004.pdf |
| _version_ | 1819027910289260544 |
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| author | Anusaiya Kaswan Vandana Kumari Dinesh Patidar Narendra Shai Saxena Kananbala Sharma |
| author_facet | Anusaiya Kaswan Vandana Kumari Dinesh Patidar Narendra Shai Saxena Kananbala Sharma |
| author_sort | Anusaiya Kaswan |
| collection | DOAJ |
| description | The kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses has been investigated using differential scanning calorimetery at different heating rates under non-isothermal conditions. The kinetic analysis of crystallization has been discussed using different theoretical approaches such as Ozawa model, Augis and Bennet model, Matusita model and Gao-Wang model. It is evident from this study that the activation energy of crystallization Ec is composition dependent. The activation energy decreases with increasing Sb content due to the increasing of rate of crystallization. The minimum value of the frequency factor Ko, which is defined as the number of attempts made by the nuclei per second to overcome the energy barrier, confirms the fact that glass is more stable. It has been found that Ge15Se70Sb15 glass is more stable compared to the other compositions. |
| first_indexed | 2024-12-21T05:49:58Z |
| format | Article |
| id | doaj.art-b7c316afdc2b4ece88795354558d9de9 |
| institution | Directory Open Access Journal |
| issn | 1820-6131 1820-6131 |
| language | English |
| last_indexed | 2024-12-21T05:49:58Z |
| publishDate | 2014-03-01 |
| publisher | University of Novi Sad |
| record_format | Article |
| series | Processing and Application of Ceramics |
| spelling | doaj.art-b7c316afdc2b4ece88795354558d9de92022-12-21T19:14:00ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61311820-61312014-03-0181253010.2298/PAC1401025KKinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glassesAnusaiya Kaswan0Vandana Kumari1Dinesh Patidar2Narendra Shai Saxena3Kananbala Sharma4Semi-conductor & Polymer Science Laboratory, Department of Physics, University of Rajasthan, Jaipur-302004, IndiaSemi-conductor & Polymer Science Laboratory, Department of Physics, University of Rajasthan, Jaipur-302004, IndiaSemi-conductor & Polymer Science Laboratory, Department of Physics, University of Rajasthan, Jaipur-302004, IndiaSemi-conductor & Polymer Science Laboratory, Department of Physics, University of Rajasthan, Jaipur-302004, IndiaSemi-conductor & Polymer Science Laboratory, Department of Physics, University of Rajasthan, Jaipur-302004, IndiaThe kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses has been investigated using differential scanning calorimetery at different heating rates under non-isothermal conditions. The kinetic analysis of crystallization has been discussed using different theoretical approaches such as Ozawa model, Augis and Bennet model, Matusita model and Gao-Wang model. It is evident from this study that the activation energy of crystallization Ec is composition dependent. The activation energy decreases with increasing Sb content due to the increasing of rate of crystallization. The minimum value of the frequency factor Ko, which is defined as the number of attempts made by the nuclei per second to overcome the energy barrier, confirms the fact that glass is more stable. It has been found that Ge15Se70Sb15 glass is more stable compared to the other compositions.http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2023%2004.pdfcrystallizationactivation energyfrequency factor |
| spellingShingle | Anusaiya Kaswan Vandana Kumari Dinesh Patidar Narendra Shai Saxena Kananbala Sharma Kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses Processing and Application of Ceramics crystallization activation energy frequency factor |
| title | Kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses |
| title_full | Kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses |
| title_fullStr | Kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses |
| title_full_unstemmed | Kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses |
| title_short | Kinetics of crystallization of Ge30-xSe70Sbx (x = 15, 20, 25) chalcogenide glasses |
| title_sort | kinetics of crystallization of ge30 xse70sbx x 15 20 25 chalcogenide glasses |
| topic | crystallization activation energy frequency factor |
| url | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2023%2004.pdf |
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