Temperature Gradient Field Theory of Nucleation
According to the proposed theory, ceramic particles present in molten metal, lose heat at a slower rate than the metallic liquid during cooling. Such condition results in the formation of a spherical thermal gradient field (TGF) around each particle. Hence, the interstitials (low temperature) of suc...
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| Format: | Conference or Workshop Item |
| Language: | English |
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IOP Publishing
2016
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/8255/1/Temperature%20Gradient%20Field%20Theory%20of%20Nucleation.pdf |
| _version_ | 1796990408297807872 |
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| author | Das, S. Ain, W. Q. Azmir, Azhari A. K., Prasada Rao |
| author_facet | Das, S. Ain, W. Q. Azmir, Azhari A. K., Prasada Rao |
| author_sort | Das, S. |
| collection | UMP |
| description | According to the proposed theory, ceramic particles present in molten metal, lose heat at a slower rate than the metallic liquid during cooling. Such condition results in the formation of a spherical thermal gradient field (TGF) around each particle. Hence, the interstitials (low temperature) of such TGFs are the regions to reach the nucleation temperature first, owing to low energy barrier than the liquid-particle interface (higher temperature). Analytics also indicate that the nucleation rate is higher at the TGF interstitials, than at the liquid-particle interface. Such TGF network results in simultaneous nucleation throughout the system, resulting in grain refinement. |
| first_indexed | 2024-03-06T11:51:07Z |
| format | Conference or Workshop Item |
| id | UMPir8255 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T11:51:07Z |
| publishDate | 2016 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | UMPir82552018-01-23T01:25:41Z http://umpir.ump.edu.my/id/eprint/8255/ Temperature Gradient Field Theory of Nucleation Das, S. Ain, W. Q. Azmir, Azhari A. K., Prasada Rao TS Manufactures According to the proposed theory, ceramic particles present in molten metal, lose heat at a slower rate than the metallic liquid during cooling. Such condition results in the formation of a spherical thermal gradient field (TGF) around each particle. Hence, the interstitials (low temperature) of such TGFs are the regions to reach the nucleation temperature first, owing to low energy barrier than the liquid-particle interface (higher temperature). Analytics also indicate that the nucleation rate is higher at the TGF interstitials, than at the liquid-particle interface. Such TGF network results in simultaneous nucleation throughout the system, resulting in grain refinement. IOP Publishing 2016 Conference or Workshop Item PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/8255/1/Temperature%20Gradient%20Field%20Theory%20of%20Nucleation.pdf Das, S. and Ain, W. Q. and Azmir, Azhari and A. K., Prasada Rao (2016) Temperature Gradient Field Theory of Nucleation. In: IOP Conference Series: Materials Science and Engineering: 2nd International Manufacturing Engineering Conference and 3rd Asia-Pacific Conference on Manufacturing Systems (iMEC-APCOMS 2015) , 12–14 November 2015 , Kuala Lumpur, Malaysia. pp. 1-8., 114 (1). ISSN 1757-8981 (Print); 1757-899X (Online) http://dx.doi.org/10.1088/1757-899X/114/1/012099 doi:10.1088/1757-899X/114/1/012099 |
| spellingShingle | TS Manufactures Das, S. Ain, W. Q. Azmir, Azhari A. K., Prasada Rao Temperature Gradient Field Theory of Nucleation |
| title | Temperature Gradient Field Theory of Nucleation |
| title_full | Temperature Gradient Field Theory of Nucleation |
| title_fullStr | Temperature Gradient Field Theory of Nucleation |
| title_full_unstemmed | Temperature Gradient Field Theory of Nucleation |
| title_short | Temperature Gradient Field Theory of Nucleation |
| title_sort | temperature gradient field theory of nucleation |
| topic | TS Manufactures |
| url | http://umpir.ump.edu.my/id/eprint/8255/1/Temperature%20Gradient%20Field%20Theory%20of%20Nucleation.pdf |
| work_keys_str_mv | AT dass temperaturegradientfieldtheoryofnucleation AT ainwq temperaturegradientfieldtheoryofnucleation AT azmirazhari temperaturegradientfieldtheoryofnucleation AT akprasadarao temperaturegradientfieldtheoryofnucleation |