Radiation-induced amorphization of intermetallic compounds: A molecular-dynamics study of CuTi and Cu sub 4 Ti sub 3

Conference · Sat Jun 01 00:00:00 EDT 1991

OSTI ID:5606695

Lam, N Q; Okamoto, P R ^[1]; Sabochick, M J ^[2]

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1. Argonne National Lab., IL (USA)
2. Air Force Inst. of Tech., Wright-Patterson AFB, OH (USA). Dept. of Engineering Physics

In the present paper, important results of our recent computer simulation of radiation-induced amorphization in the ordered compounds CuTi and Cu{sub 4}Ti{sub 3} are summarized. The energetic, structural, thermodynamic and mechanical responses of these intermetallics during chemical disordering, point-defect production and heating were simulated, using molecular dynamics and embedded-atom potentials. From the atomistic details obtained, the critical role of radiation-induced structural disorder in driving the crystalline-to-amorphous phase transformation is discussed. 25 refs., 4 figs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5606695
• Report Number(s): ANL/CP-73475; CONF-9105172-2; ON: DE91015110; TRN: 91-017751
• Resource Relation: Conference: International Energy Agency (IEA) workshop on the use of molecular dynamics in modeling radiation effects and other non-equilibrium phenomena, La Jolla, CA (USA), 6-8 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
AMORPHOUS STATE
PHASE TRANSFORMATIONS
COPPER COMPOUNDS
PHYSICAL RADIATION EFFECTS
INTERMETALLIC COMPOUNDS
TITANIUM COMPOUNDS
COMPUTERIZED SIMULATION
CRYSTAL STRUCTURE
PAIR PRODUCTION
SHEAR
ALLOYS
INTERACTIONS
PARTICLE PRODUCTION
RADIATION EFFECTS
SIMULATION
TRANSITION ELEMENT COMPOUNDS
656002* - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)
360102 - Metals & Alloys- Structure & Phase Studies
360106 - Metals & Alloys- Radiation Effects