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Author |
Bartova, B.; Wiese, N.; Schryvers, D.; Chapman, J.N.; Ignacova, S. |
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Title |
Microstructure of precipitates and magnetic domain structure in an annealed Co38Ni33Al29 shape memory alloy |
Type |
A1 Journal article |
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Year  |
2008 |
Publication |
Acta materialia |
Abbreviated Journal |
Acta Mater |
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Volume |
56 |
Issue |
16 |
Pages |
4470-4476 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Abstract |
The microstructure of a Co38Ni33Al29 ferromagnetic shape memory alloy was determined by conventional transmission electron microscopy (TEM), electron diffraction studies together with advanced microscopy techniques and in situ Lorentz microscopy. Rod-like precipitates, 1060 nm long, of hexagonal close-packed -Co were confirmed to be present by high-resolution TEM. The orientation relationship between the precipitates and B2 matrix is described by the Burgers orientation relationship. The crystal structure of the martensite obtained after cooling is tetragonal L10 with a (111) twinning plane. The magnetic domain structure was determined during an in situ cooling experiment using the Fresnel mode of Lorentz microscopy. While transformation proceeds from B2 austenite to L10 martensite, new domains are nucleated, leading to a decrease in domain width, with the magnetization lying predominantly along a single direction. It was possible to completely describe the relationship between magnetic domains and crystallographic directions in the austenite phase though complications existed for the martensite phase. |
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Place of Publication |
Oxford |
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Wos |
000259931300033 |
Publication Date |
2008-06-11 |
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Edition |
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ISSN |
1359-6454; |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
5.301 |
Times cited |
23 |
Open Access |
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Notes |
Multimat |
Approved |
Most recent IF: 5.301; 2008 IF: 3.729 |
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Call Number |
UA @ lucian @ c:irua:72321 |
Serial |
2072 |
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Author |
Zhang, H.; Salje, E.K.H.; Schryvers, D.; Bartova, B. |
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Title |
The martensitic phase transition in Ni-Al: experimental observation of excess entropy and heterogeneous spontaneous strain |
Type |
A1 Journal article |
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Year |
2008 |
Publication |
Journal of physics : condensed matter |
Abbreviated Journal |
J Phys-Condens Mat |
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Volume |
20 |
Issue |
5 |
Pages |
055220,1-7 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Place of Publication |
London |
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Wos |
000252923400023 |
Publication Date |
2008-01-19 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0953-8984;1361-648X; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
2.649 |
Times cited |
7 |
Open Access |
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Notes |
Multimat (MRTN-CT-2004-505226) |
Approved |
Most recent IF: 2.649; 2008 IF: 1.900 |
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Call Number |
UA @ lucian @ c:irua:67710 |
Serial |
1948 |
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Author |
Salje, E.K.H.; Zhang, H.; Schryvers, D.; Bartova, B. |
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Title |
Quantitative Landau potentials for the martensitic transformation in Ni-Al |
Type |
A1 Journal article |
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Year |
2007 |
Publication |
Applied physics letters |
Abbreviated Journal |
Appl Phys Lett |
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Volume |
90 |
Issue |
22 |
Pages |
221903,1-3 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Publisher |
American Institute of Physics |
Place of Publication |
New York, N.Y. |
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Wos |
000246909900020 |
Publication Date |
2007-05-30 |
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ISSN |
0003-6951; |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.411 |
Times cited |
9 |
Open Access |
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Notes |
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Approved |
Most recent IF: 3.411; 2007 IF: 3.596 |
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Call Number |
UA @ lucian @ c:irua:64777 |
Serial |
2757 |
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Author |
Bartova, B.; Schryvers, D.; Yang, Z.; Ignacova, S.; Sittner, P. |
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Title |
Microstructure and precipitates in as-cast Co38Ni33Al29 shape memory alloy |
Type |
A1 Journal article |
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Year |
2007 |
Publication |
Scripta materialia |
Abbreviated Journal |
Scripta Mater |
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Volume |
57 |
Issue |
1 |
Pages |
37-40 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Abstract |
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Publisher |
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Place of Publication |
Oxford |
Editor |
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Wos |
000246632900010 |
Publication Date |
2007-04-13 |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1359-6462; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.747 |
Times cited |
22 |
Open Access |
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Notes |
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Approved |
Most recent IF: 3.747; 2007 IF: 2.481 |
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Call Number |
UA @ lucian @ c:irua:64753 |
Serial |
2059 |
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