Anelastic relaxation in irradiated Cu-Be
Conference
·
OSTI ID:5565177
Ultrasonic velocity measurements were made after thermal neutron irradiation of single-crystal Cu specimens containing 700 or 3700 appM Be. Ultrasonic attenuation was measured in similar specimens after 3 MeV electron irradiation. Three anelastic relaxation processes due to self-interstitial-Be complexes were observed. Cu-Be 1 was found to occur near liquid helium temperature; the temperature dependence of the velocity change suggests that reorientation of the Cu-Be 1 complex may involve quantum mechanical tunneling. Cu-Be produced an attenuation peak at approx.2.5 K at a frequency of 10 MHz. Cu-Be 3 appeared simultaneously with 2 as a shoulder on the high temperature side of the 2.5 K attenuation peak.
- Research Organization:
- Argonne National Lab., IL (USA); Illinois Univ., Urbana (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5565177
- Report Number(s):
- CONF-8506125-3; ON: DE85013893
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
BARYONS
BEAMS
BERYLLIUM ADDITIONS
BERYLLIUM ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
ELECTRON BEAMS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
LEPTON BEAMS
MEV RANGE
MEV RANGE 01-10
NEUTRON BEAMS
NEUTRONS
NUCLEON BEAMS
NUCLEONS
PARTICLE BEAMS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RELAXATION
SOUND WAVES
THERMAL NEUTRONS
ULTRASONIC WAVES
VELOCITY
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
BARYONS
BEAMS
BERYLLIUM ADDITIONS
BERYLLIUM ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
ELECTRON BEAMS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
LEPTON BEAMS
MEV RANGE
MEV RANGE 01-10
NEUTRON BEAMS
NEUTRONS
NUCLEON BEAMS
NUCLEONS
PARTICLE BEAMS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RELAXATION
SOUND WAVES
THERMAL NEUTRONS
ULTRASONIC WAVES
VELOCITY