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Title: Bulk amorphous Pd{endash}Ni{endash}Fe{endash}P alloys: Preparation and characterization

Abstract

Bulk amorphous alloys of Pd{sub x}Ni{sub y}Fe{sub 80{minus}x{minus}y}P{sub 20} (25{le}x{le}60, 20{le}y{le}55, x+y{ge}60) were prepared by a flux-melting and water-quenching method. Seven-mm diameter glassy rods of Pd{sub 40}Ni{sub 40{minus}x}Fe{sub x}P{sub 20} (0{le}x{le}20) were studied in greater detail. For these alloys, the difference between the crystallization and glass transition temperatures ranges from 102 K for x=0 to 53 K for x=20. In this composition range, the reduced glass transition temperature, T{sub rg}, ranges from 0.66 to 0.57. The change in density upon crystallization ranges from 0.24{plus_minus}0.04{percent} for x=0 to 1.33{plus_minus}0.24{percent} for x=10. The partial molar volume of Fe in amorphous Pd{sub 40}Ni{sub 40{minus}x}Fe{sub x}P{sub 20} alloys is significantly larger than the molar volume of (metastable) fcc Fe. This, as well as a comparison with the molar volumes of crystalline compounds, suggests chemically selective Fe{endash}Pd bonding in these glasses. {copyright} {ital 1999 Materials Research Society.}

Authors:
; ;  [1]
  1. Materials Science and Technology Division, MS K765, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Publication Date:
OSTI Identifier:
341370
Resource Type:
Journal Article
Journal Name:
Journal of Materials Research
Additional Journal Information:
Journal Volume: 14; Journal Issue: 5; Other Information: PBD: May 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; METALLIC GLASSES; PALLADIUM ALLOYS; NICKEL ALLOYS; IRON ALLOYS; PHOSPHORUS COMPOUNDS; PHASE TRANSFORMATIONS; VITRIFICATION; TRANSITION TEMPERATURE; CHEMICAL BONDS

Citation Formats

Shen, T D, He, Y, and Schwarz, R B. Bulk amorphous Pd{endash}Ni{endash}Fe{endash}P alloys: Preparation and characterization. United States: N. p., 1999. Web. doi:10.1557/JMR.1999.0285.
Shen, T D, He, Y, & Schwarz, R B. Bulk amorphous Pd{endash}Ni{endash}Fe{endash}P alloys: Preparation and characterization. United States. https://doi.org/10.1557/JMR.1999.0285
Shen, T D, He, Y, and Schwarz, R B. 1999. "Bulk amorphous Pd{endash}Ni{endash}Fe{endash}P alloys: Preparation and characterization". United States. https://doi.org/10.1557/JMR.1999.0285.
@article{osti_341370,
title = {Bulk amorphous Pd{endash}Ni{endash}Fe{endash}P alloys: Preparation and characterization},
author = {Shen, T D and He, Y and Schwarz, R B},
abstractNote = {Bulk amorphous alloys of Pd{sub x}Ni{sub y}Fe{sub 80{minus}x{minus}y}P{sub 20} (25{le}x{le}60, 20{le}y{le}55, x+y{ge}60) were prepared by a flux-melting and water-quenching method. Seven-mm diameter glassy rods of Pd{sub 40}Ni{sub 40{minus}x}Fe{sub x}P{sub 20} (0{le}x{le}20) were studied in greater detail. For these alloys, the difference between the crystallization and glass transition temperatures ranges from 102 K for x=0 to 53 K for x=20. In this composition range, the reduced glass transition temperature, T{sub rg}, ranges from 0.66 to 0.57. The change in density upon crystallization ranges from 0.24{plus_minus}0.04{percent} for x=0 to 1.33{plus_minus}0.24{percent} for x=10. The partial molar volume of Fe in amorphous Pd{sub 40}Ni{sub 40{minus}x}Fe{sub x}P{sub 20} alloys is significantly larger than the molar volume of (metastable) fcc Fe. This, as well as a comparison with the molar volumes of crystalline compounds, suggests chemically selective Fe{endash}Pd bonding in these glasses. {copyright} {ital 1999 Materials Research Society.}},
doi = {10.1557/JMR.1999.0285},
url = {https://www.osti.gov/biblio/341370}, journal = {Journal of Materials Research},
number = 5,
volume = 14,
place = {United States},
year = {Sat May 01 00:00:00 EDT 1999},
month = {Sat May 01 00:00:00 EDT 1999}
}