Temperature Gradient Field Theory of Nucleation

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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Main Authors: Das, S., Ain, W. Q., Azmir, Azhari, A. K., Prasada Rao
Format: Conference or Workshop Item
Language:English
Published: IOP Publishing 2016
Subjects:
TS Manufactures
Online Access:http://umpir.ump.edu.my/id/eprint/8255/
http://umpir.ump.edu.my/id/eprint/8255/
http://umpir.ump.edu.my/id/eprint/8255/
http://umpir.ump.edu.my/id/eprint/8255/1/Temperature%20Gradient%20Field%20Theory%20of%20Nucleation.pdf
id ump-8255
recordtype eprints
spelling ump-82552018-01-23T01:25:41Z 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
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TS Manufactures
spellingShingle TS Manufactures
Das, S.
Ain, W. Q.
Azmir, Azhari
A. K., Prasada Rao
Temperature Gradient Field Theory of Nucleation
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.
format Conference or Workshop Item
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.
title Temperature Gradient Field Theory of Nucleation
title_short 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_sort temperature gradient field theory of nucleation
publisher IOP Publishing
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/8255/
http://umpir.ump.edu.my/id/eprint/8255/
http://umpir.ump.edu.my/id/eprint/8255/
http://umpir.ump.edu.my/id/eprint/8255/1/Temperature%20Gradient%20Field%20Theory%20of%20Nucleation.pdf
first_indexed 2023-09-18T22:05:37Z
last_indexed 2023-09-18T22:05:37Z
_version_ 1777414688391299072

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