The glass transition temperature in amorphous CU/sub 1-chi/Zr/sub chi/ alloys synthesized by mechanical alloying/milling
- North Carolina State Univ., Raleigh, NC (USA). Dept. of Materials Science and Engineering
While most amorphous alloys have been prepared by rapid quenching from the liquid state or quenching from the vapor state, there has been recent interest in solid state amorphization. High energy ball milling of powders is a solid state amorphization method that can synthesize amorphous alloys by mechanical alloying (MA) of elemental powders or by mechanical milling (MM) of intermetallic compound powder. It is emphasized from the present observations of Tg's in Cu/sub 1-chi/Zr/sub chi/ alloys and previous work of Ni/sub 1-chi/Zr/sub chi/, that amorphous alloys prepared by MA or MM can be amorphous rather than microcrystalline. When the authors account for the effects of impurities (oxygen or iron), the T/sub g/ values are essentially identical to those for amorphous rapidly solidified alloys of the same composition (i.e. Cu/sub 50/Zr/sub 50/).
- OSTI ID:
- 5182236
- Journal Information:
- Scripta Metallurgica; (USA), Journal Name: Scripta Metallurgica; (USA) Vol. 23:10; ISSN 0036-9748; ISSN SCRMB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360101 -- Metals & Alloys-- Preparation & Fabrication
360102* -- Metals & Alloys-- Structure & Phase Studies
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALLOYS
AMORPHOUS STATE
CHEMICAL COMPOSITION
COPPER ALLOYS
CRYSTAL STRUCTURE
DATA
DIFFRACTION METHODS
EXPERIMENTAL DATA
GLASS
IMPURITIES
INFORMATION
INTERMETALLIC COMPOUNDS
MACHINING
METALLURGY
MICROSTRUCTURE
MILLING
NICKEL ALLOYS
NUMERICAL DATA
PHASE STUDIES
PHYSICAL PROPERTIES
POWDER METALLURGY
QUENCHING
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ZIRCONIUM ALLOYS