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EXPERIMENTAL METHODS 2 8
EXPERIMENTAL RESULTS AND OBSERVATIONS
electric ceramic transducer with
8 other sections not shown
Ahearn aluminum analog circuit applied stress atoms axial elongation axial load axial strain axial stress bands of deformation Burgers vector capacitive transducer ceramic stress transducer clusters of glide cm/min cm/sec cross-head cryostat crystal cryostat Cu-Al alloys deformation process deformed at 4.2°K deformed crystal density differential transformer dislocation moving dislocation velocity displacement duration edge dislocations elastic electrical analog energy equation etch-pit face-centered cubic fast load drops fast slip process ferroelectric ferroelectric ceramic frequency glide planes grips Hobgood initial Instron machine Kg/mm Load-time curve magnetostrictive magnitude measured mechanical impedance micrograph Mitchell moving dislocations msec observed obtained opposite 210 Peierls Phys piezoelectric plastic deformation primary dislocations produced proving ring pull rod pull-bar PZT-4 ceramic Rayleigh waves relaxation process screw dislocation shear stress shown in Figure shows single crystals slip terraces stainless steel strain gauge strain increments stress fields stress pulse stress waves surfaces tensile system tion upper universal head voltage signal