Correlation between thermal expansion coefficient and glass formability in amorphous alloys
The dilatometric and thermal behaviors such as the thermal expansion coefficient ( α) and the liquidus temperature ( T l) of Al-Ni-RE (RE = Y, Ce, Gd and Er) amorphous alloys were investigated by a conventional dilatometer and differential scanning calorimetry (DSC). Results show that α exp/ T l (de...
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| Veröffentlicht in: | Materials chemistry and physics 2009-07, Vol.116 (1), p.72-75 |
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| creator | Li, G.H. Wang, W.M. Bian, X.F. Zhang, J.T. Li, R. Qin, J.Y. |
| description | The dilatometric and thermal behaviors such as the thermal expansion coefficient (
α) and the liquidus temperature (
T
l) of Al-Ni-RE (RE
=
Y, Ce, Gd and Er) amorphous alloys were investigated by a conventional dilatometer and differential scanning calorimetry (DSC). Results show that
α
exp/
T
l (defined by
θ) has a good positive correlation with glass forming ability (GFA) in Al-based amorphous alloys, where
α
exp is the average linear thermal expansion coefficient. A similar phenomenon is also found in Gd- and Cu-based amorphous alloys. Based on the free volume model, it is found that the amorphous alloy which exhibits better GFA contains less free volume. Consequently, the parameter
θ can be applied to predict the GFA in the system with same main element. |
| doi_str_mv | 10.1016/j.matchemphys.2009.02.041 |
| format | Article |
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α) and the liquidus temperature (
T
l) of Al-Ni-RE (RE
=
Y, Ce, Gd and Er) amorphous alloys were investigated by a conventional dilatometer and differential scanning calorimetry (DSC). Results show that
α
exp/
T
l (defined by
θ) has a good positive correlation with glass forming ability (GFA) in Al-based amorphous alloys, where
α
exp is the average linear thermal expansion coefficient. A similar phenomenon is also found in Gd- and Cu-based amorphous alloys. Based on the free volume model, it is found that the amorphous alloy which exhibits better GFA contains less free volume. Consequently, the parameter
θ can be applied to predict the GFA in the system with same main element.</description><identifier>ISSN: 0254-0584</identifier><identifier>EISSN: 1879-3312</identifier><identifier>DOI: 10.1016/j.matchemphys.2009.02.041</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Amorphous materials ; DSC ; Thermal expansion</subject><ispartof>Materials chemistry and physics, 2009-07, Vol.116 (1), p.72-75</ispartof><rights>2009 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c352t-b68d9fcbb093c6423fdb7e5cc2a37b7bac9ea58ea6d09d1caae738f83638d46c3</citedby><cites>FETCH-LOGICAL-c352t-b68d9fcbb093c6423fdb7e5cc2a37b7bac9ea58ea6d09d1caae738f83638d46c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0254058409001321$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Li, G.H.</creatorcontrib><creatorcontrib>Wang, W.M.</creatorcontrib><creatorcontrib>Bian, X.F.</creatorcontrib><creatorcontrib>Zhang, J.T.</creatorcontrib><creatorcontrib>Li, R.</creatorcontrib><creatorcontrib>Qin, J.Y.</creatorcontrib><title>Correlation between thermal expansion coefficient and glass formability in amorphous alloys</title><title>Materials chemistry and physics</title><description>The dilatometric and thermal behaviors such as the thermal expansion coefficient (
α) and the liquidus temperature (
T
l) of Al-Ni-RE (RE
=
Y, Ce, Gd and Er) amorphous alloys were investigated by a conventional dilatometer and differential scanning calorimetry (DSC). Results show that
α
exp/
T
l (defined by
θ) has a good positive correlation with glass forming ability (GFA) in Al-based amorphous alloys, where
α
exp is the average linear thermal expansion coefficient. A similar phenomenon is also found in Gd- and Cu-based amorphous alloys. Based on the free volume model, it is found that the amorphous alloy which exhibits better GFA contains less free volume. Consequently, the parameter
θ can be applied to predict the GFA in the system with same main element.</description><subject>Amorphous materials</subject><subject>DSC</subject><subject>Thermal expansion</subject><issn>0254-0584</issn><issn>1879-3312</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqNkLtOxDAQRS0EEsvCP5iGLsGPPJwSrXhJSDRQUVgTZ8J65cTB9gL792S1FJRUU8y5VzOHkEvOcs54db3JB0hmjcO03sVcMNbkTOSs4EdkwVXdZFJycUwWTJRFxkpVnJKzGDeM8ZpzuSBvKx8COkjWj7TF9IU40rTGMICj-D3BGPcb47HvrbE4JgpjR98dxEh7P2OtdTbtqB0pDD5Ma7-NFJzzu3hOTnpwES9-55K83t2-rB6yp-f7x9XNU2ZkKVLWVqpretO2rJGmKoTsu7bG0hgBsm7rFkyDUCqEqmNNxw0A1lL1SlZSdUVl5JJcHXqn4D-2GJMebDToHIw4X6NlUSiuGjGDzQE0wccYsNdTsAOEneZM73Xqjf6jU-91aib0rHPOrg5ZnD_5tBh03Osw2NmAJunO23-0_ACD4IhH</recordid><startdate>20090715</startdate><enddate>20090715</enddate><creator>Li, G.H.</creator><creator>Wang, W.M.</creator><creator>Bian, X.F.</creator><creator>Zhang, J.T.</creator><creator>Li, R.</creator><creator>Qin, J.Y.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20090715</creationdate><title>Correlation between thermal expansion coefficient and glass formability in amorphous alloys</title><author>Li, G.H. ; Wang, W.M. ; Bian, X.F. ; Zhang, J.T. ; Li, R. ; Qin, J.Y.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c352t-b68d9fcbb093c6423fdb7e5cc2a37b7bac9ea58ea6d09d1caae738f83638d46c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Amorphous materials</topic><topic>DSC</topic><topic>Thermal expansion</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, G.H.</creatorcontrib><creatorcontrib>Wang, W.M.</creatorcontrib><creatorcontrib>Bian, X.F.</creatorcontrib><creatorcontrib>Zhang, J.T.</creatorcontrib><creatorcontrib>Li, R.</creatorcontrib><creatorcontrib>Qin, J.Y.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Materials chemistry and physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, G.H.</au><au>Wang, W.M.</au><au>Bian, X.F.</au><au>Zhang, J.T.</au><au>Li, R.</au><au>Qin, J.Y.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Correlation between thermal expansion coefficient and glass formability in amorphous alloys</atitle><jtitle>Materials chemistry and physics</jtitle><date>2009-07-15</date><risdate>2009</risdate><volume>116</volume><issue>1</issue><spage>72</spage><epage>75</epage><pages>72-75</pages><issn>0254-0584</issn><eissn>1879-3312</eissn><abstract>The dilatometric and thermal behaviors such as the thermal expansion coefficient (
α) and the liquidus temperature (
T
l) of Al-Ni-RE (RE
=
Y, Ce, Gd and Er) amorphous alloys were investigated by a conventional dilatometer and differential scanning calorimetry (DSC). Results show that
α
exp/
T
l (defined by
θ) has a good positive correlation with glass forming ability (GFA) in Al-based amorphous alloys, where
α
exp is the average linear thermal expansion coefficient. A similar phenomenon is also found in Gd- and Cu-based amorphous alloys. Based on the free volume model, it is found that the amorphous alloy which exhibits better GFA contains less free volume. Consequently, the parameter
θ can be applied to predict the GFA in the system with same main element.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matchemphys.2009.02.041</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Amorphous materials DSC Thermal expansion |
| title | Correlation between thermal expansion coefficient and glass formability in amorphous alloys |
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