Effect of Pt substitution by Cu on structural and morphological changes in Fe-Pt nanoparticles during annealing as studied by In-situ transmission electron microscopy

Materials Transactions

Volumn 48, Issue 10, 2007, Pages 2572-2579

  Nakanishi, Masatoshi ^a,b   Furusawa, Gen Ichi ^b   Waki, Kokichi ^b   Hattori, Yasushi ^b   Kamino, Takeo ^c   Sasaki, Katsuhiro ^a   Kuroda, Kotaro ^a   Saka, Hiroyasu ^a  

^a NAGOYA UNIVERSITY   (Japan)

^b FUJIFILM CORPORATION   (Japan)

^c HITACHI HIGH TECHNOLOGIES CORPORATION   (Japan)

Author keywords

Coalescence; Fe(Pt, Cu); FePt; In situ electron diffraction; In situ high resolution electron microscopy (HREM) observation; Nanoparticle; Phase diagram; Phase transformation

Indexed keywords

CHEMICAL HOMOGENEITY; IN-SITU ELECTRON DIFFRACTION; MORPHOLOGICAL CHANGES;

ANNEALING; COALESCENCE; ELECTRON DIFFRACTION; HIGH RESOLUTION ELECTRON MICROSCOPY; IRON ALLOYS; PHASE DIAGRAMS; PHASE TRANSITIONS; PLATINUM; SUBSTITUTION REACTIONS;

NANOPARTICLES;

EID: 36549006076     PISSN: 13459678     EISSN: None     Source Type: Journal    
DOI: 10.2320/matertrans.MD200710     Document Type: Conference Paper

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24. In this micrograph only one set of {111} plane, which happened to be the common plane of the twin of this particle at room temperature (Fig. 6(a′)), is resolved. Thus, there are two possible structures for this particular particle. (1) De-twinning took place and the particle became single crystalline. (2) Twin still exists but can not be revealed because of the lack of the lattice fringes other than the twin plane (111).