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Statements

Subject Item
n2:RIV%2F61389005%3A_____%2F08%3A00312558%21RIV13-AV0-61389005
rdf:type
n7:Vysledek skos:Concept
dcterms:description
A neutron single crystal diffraction method for inspecting the quality of martensite single crystals is introduced. True interface-free martensite single crystals are indispensable for, e.g. measurement of elastic constants of phases by ultrasonic techniques. The neutron diffraction method was used to detect and distinguish the presence of individual lattice correspondence variants of the 2H orthorhombic martensite phase in Cu-Al-Ni as well as to follow the activity of twinning processes during the deformation test on the martensite variant single crystals. When preparing the martensite single variant prism-shaped crystals by compression deformation method, typically a small fraction of second unwanted martensitic variant (compound twin) remains in the prism samples. Due to the very low stress (similar to 1 MPa) for the compound twinning in many shape memory alloys, it is quite difficult not only to deplete the martensite prisms of all internal interfaces but mainly to keep them in the martensite single variant state for a long time needed for further investigations. A neutron single crystal diffraction method for inspecting the quality of martensite single crystals is introduced. True interface-free martensite single crystals are indispensable for, e.g. measurement of elastic constants of phases by ultrasonic techniques. The neutron diffraction method was used to detect and distinguish the presence of individual lattice correspondence variants of the 2H orthorhombic martensite phase in Cu-Al-Ni as well as to follow the activity of twinning processes during the deformation test on the martensite variant single crystals. When preparing the martensite single variant prism-shaped crystals by compression deformation method, typically a small fraction of second unwanted martensitic variant (compound twin) remains in the prism samples. Due to the very low stress (similar to 1 MPa) for the compound twinning in many shape memory alloys, it is quite difficult not only to deplete the martensite prisms of all internal interfaces but mainly to keep them in the martensite single variant state for a long time needed for further investigations.
dcterms:title
Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method
skos:prefLabel
Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method
skos:notation
RIV/61389005:_____/08:00312558!RIV13-AV0-61389005
n4:aktivita
n18:Z n18:P
n4:aktivity
P(GA101/06/0768), P(IAA100480704), P(IAA200100627), Z(AV0Z10100520), Z(AV0Z10480505)
n4:cisloPeriodika
Sp.Iss.SI
n4:dodaniDat
n6:2013
n4:domaciTvurceVysledku
n16:6994172
n4:druhVysledku
n5:J
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n17:predkladatel
n4:idSjednocenehoVysledku
400922
n4:idVysledku
RIV/61389005:_____/08:00312558
n4:jazykVysledku
n10:eng
n4:klicovaSlova
Cu-Al-Ni; single crystals; neutron diffraction
n4:klicoveSlovo
n8:neutron%20diffraction n8:single%20crystals n8:Cu-Al-Ni
n4:kodStatuVydavatele
CH - Švýcarská konfederace
n4:kontrolniKodProRIV
[91AA6F6639DA]
n4:nazevZdroje
Materials Science and Engineering A-Structural materials
n4:obor
n19:BG
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
4
n4:projekt
n11:GA101%2F06%2F0768 n11:IAA200100627 n11:IAA100480704
n4:rokUplatneniVysledku
n6:2008
n4:svazekPeriodika
481
n4:tvurceVysledku
Šittner, P. Novák, V. Molnar, P. Lukáš, Petr
n4:wos
000255716100106
n4:zamer
n9:AV0Z10100520 n9:AV0Z10480505
s:issn
0921-5093
s:numberOfPages
5
n14:doi
10.1016/j.msea.2007.01.189