Local atomic ordering and nanoscale phase separation in a Pd-Ni-P bulk metallic glass

Journal Article · Sun Jan 01 00:00:00 EST 2006 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.73.0· OSTI ID:20787808

Hirotsu, Yoshihiko; Hirata, Akihiko ^[1]; Nieh, T G ^[2]; Ohkubo, Tadakatsu ^[3]; Tanaka, Nobuo ^[4]

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1. Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047 (Japan)
2. Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996-2200 (United States)
3. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047 (Japan)
4. Ecotopia Research Institute and Department of Crystalline Materials Science, Nagoya University, Chikusa-ku, Nagoya, 464-0846 (Japan)

The local structure in a Pd{sub 40}Ni{sub 40}P{sub 20} bulk metallic glass was examined using a spherical-aberration-corrected high resolution TEM. Fcc-Pd(Ni) type nanoclusters and local compound (phosphide)-like nanoclusters with sizes of 1-2 nm embedded in a dense-randomly-packed amorphous matrix were clearly observed under an appropriate imaging condition. However, three-dimensional atom-probe elemental mapping revealed there is virtually no nanoscale compositional difference between the nanoclusters and amorphous matrix beyond the statistical error range. A very small interfacial energy between the nanophase and the matrix is able to form a metastable amorphous phase with a structural fluctuation.

• OSTI ID: 20787808
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 73, Issue 1; Other Information: DOI: 10.1103/PhysRevB.73.012205; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMORPHOUS STATE
FCC LATTICES
FLUCTUATIONS
GEOMETRICAL ABERRATIONS
METALLIC GLASSES
NANOSTRUCTURES
NICKEL ALLOYS
PALLADIUM ALLOYS
PHOSPHORUS
SURFACE ENERGY
TRANSMISSION ELECTRON MICROSCOPY