The effect of cooling rates on the apparent fragility of Zr-based bulk metallic glasses
We investigate the behavior of the kinetic fragility parameter D ∗ as different cooling rates are applied to samples of the Zr 57 Cu 15.4 Ni 12.6 Al 10 Nb 5 and Zr 58.5 Cu 15.6 Ni 12.8 Al 10.3 Nb 2.8 bulk metallic glass formers. The glassy samples are heated into the supercooled liquid region using...
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| Veröffentlicht in: | Journal of applied physics 2010-06, Vol.107 (12), p.123529-123529-7 |
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| container_end_page | 123529-7 |
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| container_issue | 12 |
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| container_title | Journal of applied physics |
| container_volume | 107 |
| creator | Evenson, Zach Gallino, Isabella Busch, Ralf |
| description | We investigate the behavior of the kinetic fragility parameter
D
∗
as different cooling rates are applied to samples of the
Zr
57
Cu
15.4
Ni
12.6
Al
10
Nb
5
and
Zr
58.5
Cu
15.6
Ni
12.8
Al
10.3
Nb
2.8
bulk metallic glass formers. The glassy samples are heated into the supercooled liquid region using differential scanning calorimetry (DSC) and cooled back into the glassy state with sets of different cooling rates,
q
C
. The shifts in the glass transition are measured by determining the onset glass transition temperature,
T
g
onset
, as well as the limiting fictive temperature,
T
f
′
, upon reheating with a set of heating rates,
q
H
. We then model the data by assuming a Vogel-Fulcher-Tammann-type behavior in the structural relaxation time,
τ
, and observe an apparent increase in the kinetic fragility parameter for slower cooling rates. These results show that fragilities calculated from DSC scans, where
q
H
=
q
C
are in good agreement with those from equilibrium viscosity data recently obtained by three-point beam-bending. |
| doi_str_mv | 10.1063/1.3452381 |
| format | Article |
| fullrecord | <record><control><sourceid>scitation_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_21476319</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>jap</sourcerecordid><originalsourceid>FETCH-LOGICAL-c378t-11344c1d04479cfad403b8548dccae868654acc3d615830a693c45a268cdb44a3</originalsourceid><addsrcrecordid>eNp10E1LxDAQgOEgCq6rB_9BwJOHrpkmbdOLIItfsOBlRfASptNkt9ptliQe_Pd26V49zWEeBuZl7BrEAkQp72AhVZFLDSdsBkLXWVUU4pTNhMgh03VVn7OLGL-EANCynrGP9dZy65ylxL3j5H3fDRseMNnI_cDTuMb9HoMdEncBN13fpd8D_QxZg9G2vPnpv_nOJuz7jvimxxhtvGRnDvtor45zzt6fHtfLl2z19vy6fFhlJCudMgCpFEErlKpqctgqIRtdKN0SodWlLguFRLItodBSYFlLUgXmpaa2UQrlnN1Md31MnYnUJUtb8sMwPmRyUFUpoR7V7aQo-BiDdWYfuh2GXwPCHLoZMMduo72f7OEYps4P_-MxnpniGe_MFE_-Afk_dD4</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>The effect of cooling rates on the apparent fragility of Zr-based bulk metallic glasses</title><source>AIP Journals Complete</source><source>AIP Digital Archive</source><source>Alma/SFX Local Collection</source><creator>Evenson, Zach ; Gallino, Isabella ; Busch, Ralf</creator><creatorcontrib>Evenson, Zach ; Gallino, Isabella ; Busch, Ralf</creatorcontrib><description>We investigate the behavior of the kinetic fragility parameter
D
∗
as different cooling rates are applied to samples of the
Zr
57
Cu
15.4
Ni
12.6
Al
10
Nb
5
and
Zr
58.5
Cu
15.6
Ni
12.8
Al
10.3
Nb
2.8
bulk metallic glass formers. The glassy samples are heated into the supercooled liquid region using differential scanning calorimetry (DSC) and cooled back into the glassy state with sets of different cooling rates,
q
C
. The shifts in the glass transition are measured by determining the onset glass transition temperature,
T
g
onset
, as well as the limiting fictive temperature,
T
f
′
, upon reheating with a set of heating rates,
q
H
. We then model the data by assuming a Vogel-Fulcher-Tammann-type behavior in the structural relaxation time,
τ
, and observe an apparent increase in the kinetic fragility parameter for slower cooling rates. These results show that fragilities calculated from DSC scans, where
q
H
=
q
C
are in good agreement with those from equilibrium viscosity data recently obtained by three-point beam-bending.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.3452381</identifier><identifier>CODEN: JAPIAU</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>ALLOYS ; ALUMINIUM ALLOYS ; BENDING ; CALORIMETRY ; CHARGED PARTICLES ; COOLING ; COPPER ALLOYS ; DEFORMATION ; DEUTERIUM IONS ; ENTHALPY ; HEATING RATE ; IONS ; MATERIALS SCIENCE ; METALLIC GLASSES ; NICKEL ALLOYS ; NIOBIUM ALLOYS ; PHYSICAL PROPERTIES ; RELAXATION TIME ; SUPERCOOLING ; THERMODYNAMIC PROPERTIES ; TRANSITION ELEMENT ALLOYS ; TRANSITION HEAT ; TRANSITION TEMPERATURE ; VISCOSITY ; VITRIFICATION ; ZIRCONIUM ALLOYS</subject><ispartof>Journal of applied physics, 2010-06, Vol.107 (12), p.123529-123529-7</ispartof><rights>2010 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c378t-11344c1d04479cfad403b8548dccae868654acc3d615830a693c45a268cdb44a3</citedby><cites>FETCH-LOGICAL-c378t-11344c1d04479cfad403b8548dccae868654acc3d615830a693c45a268cdb44a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/jap/article-lookup/doi/10.1063/1.3452381$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,314,776,780,790,881,1553,4498,27901,27902,76126,76132</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/21476319$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Evenson, Zach</creatorcontrib><creatorcontrib>Gallino, Isabella</creatorcontrib><creatorcontrib>Busch, Ralf</creatorcontrib><title>The effect of cooling rates on the apparent fragility of Zr-based bulk metallic glasses</title><title>Journal of applied physics</title><description>We investigate the behavior of the kinetic fragility parameter
D
∗
as different cooling rates are applied to samples of the
Zr
57
Cu
15.4
Ni
12.6
Al
10
Nb
5
and
Zr
58.5
Cu
15.6
Ni
12.8
Al
10.3
Nb
2.8
bulk metallic glass formers. The glassy samples are heated into the supercooled liquid region using differential scanning calorimetry (DSC) and cooled back into the glassy state with sets of different cooling rates,
q
C
. The shifts in the glass transition are measured by determining the onset glass transition temperature,
T
g
onset
, as well as the limiting fictive temperature,
T
f
′
, upon reheating with a set of heating rates,
q
H
. We then model the data by assuming a Vogel-Fulcher-Tammann-type behavior in the structural relaxation time,
τ
, and observe an apparent increase in the kinetic fragility parameter for slower cooling rates. These results show that fragilities calculated from DSC scans, where
q
H
=
q
C
are in good agreement with those from equilibrium viscosity data recently obtained by three-point beam-bending.</description><subject>ALLOYS</subject><subject>ALUMINIUM ALLOYS</subject><subject>BENDING</subject><subject>CALORIMETRY</subject><subject>CHARGED PARTICLES</subject><subject>COOLING</subject><subject>COPPER ALLOYS</subject><subject>DEFORMATION</subject><subject>DEUTERIUM IONS</subject><subject>ENTHALPY</subject><subject>HEATING RATE</subject><subject>IONS</subject><subject>MATERIALS SCIENCE</subject><subject>METALLIC GLASSES</subject><subject>NICKEL ALLOYS</subject><subject>NIOBIUM ALLOYS</subject><subject>PHYSICAL PROPERTIES</subject><subject>RELAXATION TIME</subject><subject>SUPERCOOLING</subject><subject>THERMODYNAMIC PROPERTIES</subject><subject>TRANSITION ELEMENT ALLOYS</subject><subject>TRANSITION HEAT</subject><subject>TRANSITION TEMPERATURE</subject><subject>VISCOSITY</subject><subject>VITRIFICATION</subject><subject>ZIRCONIUM ALLOYS</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp10E1LxDAQgOEgCq6rB_9BwJOHrpkmbdOLIItfsOBlRfASptNkt9ptliQe_Pd26V49zWEeBuZl7BrEAkQp72AhVZFLDSdsBkLXWVUU4pTNhMgh03VVn7OLGL-EANCynrGP9dZy65ylxL3j5H3fDRseMNnI_cDTuMb9HoMdEncBN13fpd8D_QxZg9G2vPnpv_nOJuz7jvimxxhtvGRnDvtor45zzt6fHtfLl2z19vy6fFhlJCudMgCpFEErlKpqctgqIRtdKN0SodWlLguFRLItodBSYFlLUgXmpaa2UQrlnN1Md31MnYnUJUtb8sMwPmRyUFUpoR7V7aQo-BiDdWYfuh2GXwPCHLoZMMduo72f7OEYps4P_-MxnpniGe_MFE_-Afk_dD4</recordid><startdate>20100615</startdate><enddate>20100615</enddate><creator>Evenson, Zach</creator><creator>Gallino, Isabella</creator><creator>Busch, Ralf</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20100615</creationdate><title>The effect of cooling rates on the apparent fragility of Zr-based bulk metallic glasses</title><author>Evenson, Zach ; Gallino, Isabella ; Busch, Ralf</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c378t-11344c1d04479cfad403b8548dccae868654acc3d615830a693c45a268cdb44a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>ALLOYS</topic><topic>ALUMINIUM ALLOYS</topic><topic>BENDING</topic><topic>CALORIMETRY</topic><topic>CHARGED PARTICLES</topic><topic>COOLING</topic><topic>COPPER ALLOYS</topic><topic>DEFORMATION</topic><topic>DEUTERIUM IONS</topic><topic>ENTHALPY</topic><topic>HEATING RATE</topic><topic>IONS</topic><topic>MATERIALS SCIENCE</topic><topic>METALLIC GLASSES</topic><topic>NICKEL ALLOYS</topic><topic>NIOBIUM ALLOYS</topic><topic>PHYSICAL PROPERTIES</topic><topic>RELAXATION TIME</topic><topic>SUPERCOOLING</topic><topic>THERMODYNAMIC PROPERTIES</topic><topic>TRANSITION ELEMENT ALLOYS</topic><topic>TRANSITION HEAT</topic><topic>TRANSITION TEMPERATURE</topic><topic>VISCOSITY</topic><topic>VITRIFICATION</topic><topic>ZIRCONIUM ALLOYS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Evenson, Zach</creatorcontrib><creatorcontrib>Gallino, Isabella</creatorcontrib><creatorcontrib>Busch, Ralf</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Evenson, Zach</au><au>Gallino, Isabella</au><au>Busch, Ralf</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of cooling rates on the apparent fragility of Zr-based bulk metallic glasses</atitle><jtitle>Journal of applied physics</jtitle><date>2010-06-15</date><risdate>2010</risdate><volume>107</volume><issue>12</issue><spage>123529</spage><epage>123529-7</epage><pages>123529-123529-7</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>We investigate the behavior of the kinetic fragility parameter
D
∗
as different cooling rates are applied to samples of the
Zr
57
Cu
15.4
Ni
12.6
Al
10
Nb
5
and
Zr
58.5
Cu
15.6
Ni
12.8
Al
10.3
Nb
2.8
bulk metallic glass formers. The glassy samples are heated into the supercooled liquid region using differential scanning calorimetry (DSC) and cooled back into the glassy state with sets of different cooling rates,
q
C
. The shifts in the glass transition are measured by determining the onset glass transition temperature,
T
g
onset
, as well as the limiting fictive temperature,
T
f
′
, upon reheating with a set of heating rates,
q
H
. We then model the data by assuming a Vogel-Fulcher-Tammann-type behavior in the structural relaxation time,
τ
, and observe an apparent increase in the kinetic fragility parameter for slower cooling rates. These results show that fragilities calculated from DSC scans, where
q
H
=
q
C
are in good agreement with those from equilibrium viscosity data recently obtained by three-point beam-bending.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><doi>10.1063/1.3452381</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-8979 |
| ispartof | Journal of applied physics, 2010-06, Vol.107 (12), p.123529-123529-7 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21476319 |
| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | ALLOYS ALUMINIUM ALLOYS BENDING CALORIMETRY CHARGED PARTICLES COOLING COPPER ALLOYS DEFORMATION DEUTERIUM IONS ENTHALPY HEATING RATE IONS MATERIALS SCIENCE METALLIC GLASSES NICKEL ALLOYS NIOBIUM ALLOYS PHYSICAL PROPERTIES RELAXATION TIME SUPERCOOLING THERMODYNAMIC PROPERTIES TRANSITION ELEMENT ALLOYS TRANSITION HEAT TRANSITION TEMPERATURE VISCOSITY VITRIFICATION ZIRCONIUM ALLOYS |
| title | The effect of cooling rates on the apparent fragility of Zr-based bulk metallic glasses |
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