The dose, temperature, and projectile-mass dependence for irradiation-induced amorphization of CuTi
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (US)
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
CuTi was irradiated with 1-MeV Ne{sup +}, Kr{sup +}, and Xe{sup +} in the temperature range from 150 to 563 K. The volume fraction of the amorphous phase produced during room temperature irradiation with Ne{sup +} and Kr{sup +} ions was determined as a function of ion dose from measurements of the integrated intensity of the diffuse ring in electron diffraction patterns. The results, analyzed by Gibbons' model, indicate that direct amorphization occurs along a single ion track with Kr{sup +}, but the overlapping of three ion tracks is necessary for amorphization with Ne{sup +}. The critical temperature for amorphization increases with increasing projectile mass from electron to Ne{sup +} to Kr{sup +}. However, the critical temperatures for Kr{sup +} and Xe{sup +} irradiations were found to be identical, and very close to the thermal crystallization temperature of an amorphous zone embedded in the crystalline matrix. Using the present observations, relationships between the amorphization kinetics and the displacement density along the ion track, and between the critical temperature and the stability of the irradiation-induced damage, are discussed.
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 5376419
- Journal Information:
- Journal of Materials Research; (USA), Vol. 4:5; ISSN 0884-2914
- Country of Publication:
- United States
- Language:
- English
Similar Records
The projectile mass dependence of the amorphization process and the critical temperature in the ion irradiated CuTi
Study of irradiation-induced amorphization in intermetallic compounds
Related Subjects
COPPER ALLOYS
PHYSICAL RADIATION EFFECTS
TITANIUM ALLOYS
AMORPHOUS STATE
CATIONS
DOSE RATES
HIGH TEMPERATURE
KRYPTON IONS
LOW TEMPERATURE
MASS
MEDIUM TEMPERATURE
MEV RANGE 01-10
NEON IONS
ORDER-DISORDER TRANSFORMATIONS
PROJECTILES
TEMPERATURE DEPENDENCE
XENON IONS
ALLOYS
CHARGED PARTICLES
ENERGY RANGE
IONS
MEV RANGE
PHASE TRANSFORMATIONS
RADIATION EFFECTS
360106* - Metals & Alloys- Radiation Effects
360102 - Metals & Alloys- Structure & Phase Studies