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https://hdl.handle.net/2142/23955
Description
Title
Sources and sinks for vacancies in gold
Author(s)
Lund, Clarence Alfred
Issue Date
1964
Doctoral Committee Chair(s)
Koehler, James S.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
source-sink equivalence
gold surface
gold
Grain Boundaries
dislocations
tetrahedra
perfect crystal sites
vacancies in gold
Language
en
Abstract
High :purity gold wires of 0.016 inch diameter were heated
in ten milliseconds to temperatures between 5000C and 700oC, held there
for times less than a few seconds and quenched to room temperature in
water. The cooling time was about 40 milliseconds.
Similar wires, but(con.taining about 0.1% silver were
.. .... . . 0
similarly heated to temperatures very near to 650 C and similarly
quenched.
It was found that, although the assumption of diffusion
limited generation and subsequent annealing near 1000Csufficed for
the pure wires, the silver containing wires see~ed to generate much
more slowly.
It was further found that, for the pure Wires, sources for
vacancies other than the wire surface or grain boundaries were necessary.
A short discussion of the relationship between high temperature
generation and low temperature annealing was carried out.
Generation from perfect lattice sites was also discussed.
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