Structure of rapidly quenched Ga-free Heusler alloys
Identifieur interne : 000058 ( Russie/Analysis ); précédent : 000057; suivant : 000059Structure of rapidly quenched Ga-free Heusler alloys
Auteurs : RBID : Pascal:11-0480074Descripteurs français
- Pascal (Inist)
- Transformation martensitique, Diffraction RX, Paramètre cristallin, Microstructure, Microscopie électronique balayage, Microanalyse, Structure équiaxe, Structure basaltique, Alliage ternaire, Alliage ferromagnétique, Alliage Heusler, Nickel alliage, Manganèse alliage, Alliage mémoire forme, Indium alliage, Etain alliage, Métal transition alliage.
English descriptors
- KwdEn :
- Columnar structure, Equiaxed structure, Heusler alloys, Indium alloys, Lattice parameters, Magnetically soft alloy, Manganese alloys, Martensitic transformations, Microanalysis, Microstructure, Nickel alloys, Scanning electron microscopy, Shape memory alloy, Ternary alloys, Tin alloys, Transition element alloys, XRD.
Abstract
The development of magnetic shape memory alloys in ribbon form is a new field with interesting thermo-elastic and thermomagnetic properties. In this work, two Ga-free Heusler alloys were obtained. It is found that is possible to obtain these materials with an austenite structure or with a martensite structure at room temperature. The lattice parameters are a = 0.5985(4) nm for the cubic L21 austenite and a = 1.2604(5)nm, b = 0.4925(2)nm and c = 0.4775(9) nm for the orthorhombic martensite. Furthermore, the microstructure followed by scanning electron microscopy confirms the coexistence of equiaxial and columnar grains with an inhomogeneous distribution. The composition of each alloy is homogeneous. The control of different parameters, as the composition and the processing conditions can be a good option in order to obtain a material with the crystalline structure and the microstructure desired at room or near room temperature. This fact, can favours the applicability of this materials.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Structure of rapidly quenched Ga-free Heusler alloys</title><author><name sortKey="Sunol, J J" uniqKey="Sunol J">J. J. Sunol</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Physics, University of Girona (P II, EPS), Campus Montilivi s/n</s1><s2>17071 Girona</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Catalogne</region></placeName></affiliation></author><author><name sortKey="Escoda, L" uniqKey="Escoda L">L. Escoda</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Physics, University of Girona (P II, EPS), Campus Montilivi s/n</s1><s2>17071 Girona</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Catalogne</region></placeName></affiliation></author><author><name sortKey="Hernando, B" uniqKey="Hernando B">B. Hernando</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Department of Physics, University of Oviedo, Calvo Sotelo s/n</s1><s2>33007 Oviedo</s2><s3>ESP</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Principauté des Asturies</region></placeName></affiliation></author><author><name sortKey="Rosa, W O" uniqKey="Rosa W">W. O. Rosa</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Department of Physics, University of Oviedo, Calvo Sotelo s/n</s1><s2>33007 Oviedo</s2><s3>ESP</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Principauté des Asturies</region></placeName></affiliation></author><author><name sortKey="Sanchez, T" uniqKey="Sanchez T">T. Sanchez</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Department of Physics, University of Oviedo, Calvo Sotelo s/n</s1><s2>33007 Oviedo</s2><s3>ESP</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Principauté des Asturies</region></placeName></affiliation></author><author><name sortKey="Santos, J D" uniqKey="Santos J">J. D. Santos</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Department of Physics, University of Oviedo, Calvo Sotelo s/n</s1><s2>33007 Oviedo</s2><s3>ESP</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Principauté des Asturies</region></placeName></affiliation></author><author><name sortKey="Prida, V M" uniqKey="Prida V">V. M. Prida</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Department of Physics, University of Oviedo, Calvo Sotelo s/n</s1><s2>33007 Oviedo</s2><s3>ESP</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Principauté des Asturies</region></placeName></affiliation></author><author><name sortKey="Shavrov, V G" uniqKey="Shavrov V">V. G. Shavrov</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Institute of Radioengineering and Electronic of RAS</s1><s2>Moscow 125009</s2><s3>RUS</s3><sZ>8 aut.</sZ></inist:fA14><country>Russie</country><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="inist">11-0480074</idno><date when="2011">2011</date><idno type="stanalyst">PASCAL 11-0480074 INIST</idno><idno type="RBID">Pascal:11-0480074</idno><idno type="wicri:Area/Main/Corpus">002627</idno><idno type="wicri:Area/Main/Repository">002474</idno><idno type="wicri:Area/Russie/Extraction">000058</idno></publicationStmt><seriesStmt><idno type="ISSN">1862-6300</idno><title level="j" type="abbreviated">Phys. status solidi, A Appl. mater. sci. : (Print)</title><title level="j" type="main">Physica status solidi. A, Applications and materials science : (Print)</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Columnar structure</term><term>Equiaxed structure</term><term>Heusler alloys</term><term>Indium alloys</term><term>Lattice parameters</term><term>Magnetically soft alloy</term><term>Manganese alloys</term><term>Martensitic transformations</term><term>Microanalysis</term><term>Microstructure</term><term>Nickel alloys</term><term>Scanning electron microscopy</term><term>Shape memory alloy</term><term>Ternary alloys</term><term>Tin alloys</term><term>Transition element alloys</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Transformation martensitique</term><term>Diffraction RX</term><term>Paramètre cristallin</term><term>Microstructure</term><term>Microscopie électronique balayage</term><term>Microanalyse</term><term>Structure équiaxe</term><term>Structure basaltique</term><term>Alliage ternaire</term><term>Alliage ferromagnétique</term><term>Alliage Heusler</term><term>Nickel alliage</term><term>Manganèse alliage</term><term>Alliage mémoire forme</term><term>Indium alliage</term><term>Etain alliage</term><term>Métal transition alliage</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The development of magnetic shape memory alloys in ribbon form is a new field with interesting thermo-elastic and thermomagnetic properties. In this work, two Ga-free Heusler alloys were obtained. It is found that is possible to obtain these materials with an austenite structure or with a martensite structure at room temperature. The lattice parameters are a = 0.5985(4) nm for the cubic L2<sub>1</sub> austenite and a = 1.2604(5)nm, b = 0.4925(2)nm and c = 0.4775(9) nm for the orthorhombic martensite. Furthermore, the microstructure followed by scanning electron microscopy confirms the coexistence of equiaxial and columnar grains with an inhomogeneous distribution. The composition of each alloy is homogeneous. The control of different parameters, as the composition and the processing conditions can be a good option in order to obtain a material with the crystalline structure and the microstructure desired at room or near room temperature. This fact, can favours the applicability of this materials.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1862-6300</s0></fA01><fA03 i2="1"><s0>Phys. status solidi, A Appl. mater. sci. : (Print)</s0></fA03><fA05><s2>208</s2></fA05><fA06><s2>10</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Structure of rapidly quenched Ga-free Heusler alloys</s1></fA08><fA11 i1="01" i2="1"><s1>SUNOL (J. J.)</s1></fA11><fA11 i1="02" i2="1"><s1>ESCODA (L.)</s1></fA11><fA11 i1="03" i2="1"><s1>HERNANDO (B.)</s1></fA11><fA11 i1="04" i2="1"><s1>ROSA (W. O.)</s1></fA11><fA11 i1="05" i2="1"><s1>SANCHEZ (T.)</s1></fA11><fA11 i1="06" i2="1"><s1>SANTOS (J. D.)</s1></fA11><fA11 i1="07" i2="1"><s1>PRIDA (V. M.)</s1></fA11><fA11 i1="08" i2="1"><s1>SHAVROV (V. G.)</s1></fA11><fA14 i1="01"><s1>Department of Physics, University of Girona (P II, EPS), Campus Montilivi s/n</s1><s2>17071 Girona</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Physics, University of Oviedo, Calvo Sotelo s/n</s1><s2>33007 Oviedo</s2><s3>ESP</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ></fA14><fA14 i1="03"><s1>Institute of Radioengineering and Electronic of RAS</s1><s2>Moscow 125009</s2><s3>RUS</s3><sZ>8 aut.</sZ></fA14><fA20><s1>2281-2283</s1></fA20><fA21><s1>2011</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>10183A</s2><s5>354000507248150090</s5></fA43><fA44><s0>0000</s0><s1>© 2011 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>14 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>11-0480074</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Physica status solidi. A, Applications and materials science : (Print)</s0></fA64><fA66 i1="01"><s0>DEU</s0></fA66><fC01 i1="01" l="ENG"><s0>The development of magnetic shape memory alloys in ribbon form is a new field with interesting thermo-elastic and thermomagnetic properties. In this work, two Ga-free Heusler alloys were obtained. It is found that is possible to obtain these materials with an austenite structure or with a martensite structure at room temperature. The lattice parameters are a = 0.5985(4) nm for the cubic L2<sub>1</sub> austenite and a = 1.2604(5)nm, b = 0.4925(2)nm and c = 0.4775(9) nm for the orthorhombic martensite. Furthermore, the microstructure followed by scanning electron microscopy confirms the coexistence of equiaxial and columnar grains with an inhomogeneous distribution. The composition of each alloy is homogeneous. The control of different parameters, as the composition and the processing conditions can be a good option in order to obtain a material with the crystalline structure and the microstructure desired at room or near room temperature. 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