1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Ordering of nanocrystalline Fe–Pt alloys studied by in situ neutron powder diffraction
Rent:
Rent this article for
USD
10.1063/1.2360151
/content/aip/journal/jap/100/9/10.1063/1.2360151
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/9/10.1063/1.2360151

Figures

Image of FIG. 1.
FIG. 1.

Lattice parameter of the A1 phase in powders milled for dependent on Pt concentration (obtained by Rietveld refinement of x-ray diffraction data).

Image of FIG. 2.
FIG. 2.

Three-dimensional plots of the neutron diffraction patterns as a function of temperature for powders milled for (a) , (b) , and (c) . Indicated are the diffraction peaks corresponding to the phases observed.

Image of FIG. 3.
FIG. 3.

The fraction of the phases observed upon heating in powders milled for .

Image of FIG. 4.
FIG. 4.

Neutron diffraction pattern of the milled powder recorded at during heating. Shown are the measured (circle) and calculated (line) profiles and the difference between the observed and calculated intensities (lower line). The vertical bars represent the Bragg reflection positions of the observed phases (from top to bottom: , , , , A1, and Pt).

Image of FIG. 5.
FIG. 5.

The fraction of the phases observed on heating powders milled for .

Image of FIG. 6.
FIG. 6.

The fraction transformed on heating in powders milled for 2, 4, and .

Image of FIG. 7.
FIG. 7.

The fraction transformed on heating in powders (, 45, 50, and 55) milled for .

Image of FIG. 8.
FIG. 8.

Evolution of the lattice constants, and , in powders upon (1) the first heating up to and (2) the second heating up to followed by cooling down to room temperature.

Image of FIG. 9.
FIG. 9.

DSC traces for (a) powders milled for 2, 4, and and (b) (, 45, 50, and 55) powders milled for (heating rate of ).

Image of FIG. 10.
FIG. 10.

The LRO parameter of the phase determined at room temperature as a function of annealing time at (closed symbols) and (open symbols) for powders milled for (stars) and (squares).

Tables

Generic image for table
Table I.

The onset temperature of the transformation , the transformation peak temperature , the enthalpy change , the Curie temperature of the phase determined from the DSC measurements at a rate of , and the transformation activation energy for the powders milled for a given time .

Generic image for table
Table II.

Results of the crystal structure refinement using x-ray diffraction data for the (, 45, 50, and 55) alloys milled for after heat treatment: phase fraction (also compared to room temperature neutron data collected after heat treatment), lattice constants and , site occupation , LRO parameter , and agreement factors and .

Loading

Article metrics loading...

/content/aip/journal/jap/100/9/10.1063/1.2360151
2006-11-06
2014-04-17
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ordering of nanocrystalline Fe–Pt alloys studied by in situ neutron powder diffraction
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/9/10.1063/1.2360151
10.1063/1.2360151
SEARCH_EXPAND_ITEM