Pinning/depinning dynamics of trijunction lines during faceted/nonfaceted eutectic growth
We present an in situ experimental study of decoupled- and coupled-growth patterns in a binary faceted/ nonfaceted (f/nf) eutectic alloy. Real-time optical observation is carried out at low growth velocity V (
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| Veröffentlicht in: | Journal of crystal growth 2024-06, Vol.636, p.127705, Article 127705 |
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| container_title | Journal of crystal growth |
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| creator | Mohagheghi, S. Şerefoğlu, M. Akamatsu, S. Bottin-Rousseau, S. |
| description | We present an in situ experimental study of decoupled- and coupled-growth patterns in a binary faceted/ nonfaceted (f/nf) eutectic alloy. Real-time optical observation is carried out at low growth velocity V ( |
| doi_str_mv | 10.1016/j.jcrysgro.2024.127705 |
| format | Article |
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•In situ experiments during faceted/nonfaceted (f/nf) eutectic solidification.•Irregular eutectic microstructures (fibers, C-like, tubular) of general interest.•Coupled- vs. decoupled-growth patterns: pinning/depinning trijunction lines.•Transient dynamics, pattern selection, morphological instabilities.•Experimental basis for future theoretical analysis of f/nf eutectic patterns.</description><identifier>ISSN: 0022-0248</identifier><identifier>EISSN: 1873-5002</identifier><identifier>DOI: 10.1016/j.jcrysgro.2024.127705</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>A1.Directional solidification ; A1.Eutectics ; A1.Interfaces ; A1.Morphological stability ; Condensed Matter ; Materials Science ; Nonlinear Sciences ; Pattern Formation and Solitons ; Physics</subject><ispartof>Journal of crystal growth, 2024-06, Vol.636, p.127705, Article 127705</ispartof><rights>2024 Elsevier B.V.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c293t-f2a8395e4b7896f75d9d3c3c379cf1cd42d32d1c639626df9f0c70dbf9f2ff053</cites><orcidid>0000-0003-0723-4523 ; 0000-0001-5809-0473</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0022024824001404$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://hal.science/hal-04552686$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Mohagheghi, S.</creatorcontrib><creatorcontrib>Şerefoğlu, M.</creatorcontrib><creatorcontrib>Akamatsu, S.</creatorcontrib><creatorcontrib>Bottin-Rousseau, S.</creatorcontrib><title>Pinning/depinning dynamics of trijunction lines during faceted/nonfaceted eutectic growth</title><title>Journal of crystal growth</title><description>We present an in situ experimental study of decoupled- and coupled-growth patterns in a binary faceted/ nonfaceted (f/nf) eutectic alloy. Real-time optical observation is carried out at low growth velocity V (<0.3μms−1) during directional solidification of the transparent AminoMethylPropaneDiol-Succinonitrile (AMPD-SCN) eutectic in thin samples. On a large scale, the two-phase growth front mostly exhibits irregularly spaced decoupled-growth patterns involving faceted fiber-like AMPD crystals that protrude in the liquid ahead of, and in weak diffusive interaction with the nonfaceted SCN solid. The morphological stability of low-velocity, steady-state decoupled-growth patterns is evidenced. In addition, three types of (f/nf) coupled-growth patterns with fiber-like, tubular (or “hollow”) and C-shaped morphologies, respectively, are identified. New light is cast on the pinning/depinning dynamics of trijunctions at which the two solid phases and the liquid meet in equilibrium. A discussion is initiated on the interplay between the interfacial kinetics of the more or less mobile facets and the solute diffusion field, and on the stability of triple junctions with strongly anisotropic interfaces.
•In situ experiments during faceted/nonfaceted (f/nf) eutectic solidification.•Irregular eutectic microstructures (fibers, C-like, tubular) of general interest.•Coupled- vs. decoupled-growth patterns: pinning/depinning trijunction lines.•Transient dynamics, pattern selection, morphological instabilities.•Experimental basis for future theoretical analysis of f/nf eutectic patterns.</description><subject>A1.Directional solidification</subject><subject>A1.Eutectics</subject><subject>A1.Interfaces</subject><subject>A1.Morphological stability</subject><subject>Condensed Matter</subject><subject>Materials Science</subject><subject>Nonlinear Sciences</subject><subject>Pattern Formation and Solitons</subject><subject>Physics</subject><issn>0022-0248</issn><issn>1873-5002</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFUE1LAzEQDaJgrf4F2auH3c3HJrt7sxS1QkEPevAU0ny0WdqkJNtK_71ZtnqVgZnHzHvDzAPgHsECQcTKruhkOMV18AWGuCoQrmtIL8AENTXJKYT4EkxSxnmaNtfgJsYOwqREcAK-3q1z1q1LpfcjytTJiZ2VMfMm64PtDk721rtsa52OmTqEgWSE1L1WpfPuDDN96HViyixd8t1vbsGVEduo7851Cj6fnz7mi3z59vI6ny1ziVvS5waLhrRUV6u6aZmpqWoVkSnqVhokVYUVwQpJRlqGmTKtgbKGapUANgZSMgUP496N2PJ9sDsRTtwLyxezJR96sKIUs4YdUeKykSuDjzFo8ydAkA9m8o7_mskHM_loZhI-jkKdPjlaHXiUVjuplQ3paa68_W_FD0VCgvY</recordid><startdate>20240615</startdate><enddate>20240615</enddate><creator>Mohagheghi, S.</creator><creator>Şerefoğlu, M.</creator><creator>Akamatsu, S.</creator><creator>Bottin-Rousseau, S.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0003-0723-4523</orcidid><orcidid>https://orcid.org/0000-0001-5809-0473</orcidid></search><sort><creationdate>20240615</creationdate><title>Pinning/depinning dynamics of trijunction lines during faceted/nonfaceted eutectic growth</title><author>Mohagheghi, S. ; Şerefoğlu, M. ; Akamatsu, S. ; Bottin-Rousseau, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c293t-f2a8395e4b7896f75d9d3c3c379cf1cd42d32d1c639626df9f0c70dbf9f2ff053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>A1.Directional solidification</topic><topic>A1.Eutectics</topic><topic>A1.Interfaces</topic><topic>A1.Morphological stability</topic><topic>Condensed Matter</topic><topic>Materials Science</topic><topic>Nonlinear Sciences</topic><topic>Pattern Formation and Solitons</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mohagheghi, S.</creatorcontrib><creatorcontrib>Şerefoğlu, M.</creatorcontrib><creatorcontrib>Akamatsu, S.</creatorcontrib><creatorcontrib>Bottin-Rousseau, S.</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Journal of crystal growth</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mohagheghi, S.</au><au>Şerefoğlu, M.</au><au>Akamatsu, S.</au><au>Bottin-Rousseau, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pinning/depinning dynamics of trijunction lines during faceted/nonfaceted eutectic growth</atitle><jtitle>Journal of crystal growth</jtitle><date>2024-06-15</date><risdate>2024</risdate><volume>636</volume><spage>127705</spage><pages>127705-</pages><artnum>127705</artnum><issn>0022-0248</issn><eissn>1873-5002</eissn><abstract>We present an in situ experimental study of decoupled- and coupled-growth patterns in a binary faceted/ nonfaceted (f/nf) eutectic alloy. Real-time optical observation is carried out at low growth velocity V (<0.3μms−1) during directional solidification of the transparent AminoMethylPropaneDiol-Succinonitrile (AMPD-SCN) eutectic in thin samples. On a large scale, the two-phase growth front mostly exhibits irregularly spaced decoupled-growth patterns involving faceted fiber-like AMPD crystals that protrude in the liquid ahead of, and in weak diffusive interaction with the nonfaceted SCN solid. The morphological stability of low-velocity, steady-state decoupled-growth patterns is evidenced. In addition, three types of (f/nf) coupled-growth patterns with fiber-like, tubular (or “hollow”) and C-shaped morphologies, respectively, are identified. New light is cast on the pinning/depinning dynamics of trijunctions at which the two solid phases and the liquid meet in equilibrium. A discussion is initiated on the interplay between the interfacial kinetics of the more or less mobile facets and the solute diffusion field, and on the stability of triple junctions with strongly anisotropic interfaces.
•In situ experiments during faceted/nonfaceted (f/nf) eutectic solidification.•Irregular eutectic microstructures (fibers, C-like, tubular) of general interest.•Coupled- vs. decoupled-growth patterns: pinning/depinning trijunction lines.•Transient dynamics, pattern selection, morphological instabilities.•Experimental basis for future theoretical analysis of f/nf eutectic patterns.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.jcrysgro.2024.127705</doi><orcidid>https://orcid.org/0000-0003-0723-4523</orcidid><orcidid>https://orcid.org/0000-0001-5809-0473</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | A1.Directional solidification A1.Eutectics A1.Interfaces A1.Morphological stability Condensed Matter Materials Science Nonlinear Sciences Pattern Formation and Solitons Physics |
| title | Pinning/depinning dynamics of trijunction lines during faceted/nonfaceted eutectic growth |
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