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On the ductile-to-brittle transition in ice under compression
Abstract Evidence is presented which supports a recent model [Schulson, Acta metall. mater.38, 1963 (1990)] of the ductile-brittle transition in ice under uniaxial compression. Observations on… Expand
The influence of columnar defects on the vortex array in Bi2Sr2CaCu2O8+x single crystals
Abstract Using a decoration technique, the influence of artificial columnar defects on the vortex lattice in BSCCO single crystals was investigated. A transition from a fully disordered to a… Expand
Simultaneous observation of vortices and dislocations in thin BSCCO (2212) single crystals
Defect states in Si containing dislocation nets
Dc conductivity, Hall effect, and photoluminescence spectra are studied in heavily deformed samples containing a connected system of dislocation cell walls. The conclusion is made that, in deformed… Expand