Irradiation stability of Pd/sub 2/Si

Conference · Tue Dec 01 04:00:00 EST 1987

OSTI ID:5370128

Nastasi, M; Okamoto, P R; Averback, R S; Hung, L S; Barbour, J C; Mayer, J W

The irradiation stability of thin film Pd/sub 2/Si under 400-keV Kr ion irradiation has been examined in both a conventional implanter and in the Argonne National Laboratory High Voltage Electron Microscope (HVEM). Samples irradiated in the conventional implanter at 100 and 300/sup 0/K to a dose of 1 x 10/sup 15/ Kr/cm/sup 2/ remained crystalline and ordered. Samples irradiated in the HVEM at 10/sup 0/K were observed to undergo a crystal to amorphous transformation after a dose of 7.5 x 10/sup 14/ Kr/cm/sup 2/ (approximately 3 displacements per atom). The amorphous phase was observed to crystallize in the temperature regime between 220 and 300/sup 0/K. Results indicate that the stability and amorphization of crystalline Pd/sub 2/Si is dominated by kinetics rather than by thermodynamics or a complex equilibrium structure. 17 refs., 4 figs.

• Research Organization: Los Alamos National Lab., NM (USA); Argonne National Lab., IL (USA); Cornell Univ., Ithaca, NY (USA). Dept. of Materials Science and Engineering
• DOE Contract Number: W-31109-ENG-38; W-7405-ENG-36
• OSTI ID: 5370128
• Report Number(s): CONF-8708104-5; ON: DE88005930
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
AMORPHOUS STATE
BEAMS
CHARGED PARTICLES
COHERENT SCATTERING
CRYSTALLIZATION
DIFFRACTION
ELECTRON DIFFRACTION
FILMS
ION BEAMS
ION IMPLANTATION
IONS
KINETICS
KRYPTON IONS
ORDER-DISORDER TRANSFORMATIONS
PALLADIUM ALLOYS
PHASE TRANSFORMATIONS
PHYSICAL RADIATION EFFECTS
PLATINUM METAL ALLOYS
RADIATION EFFECTS
SCATTERING
SILICON ALLOYS
TEMPERATURE EFFECTS
THIN FILMS