Ge single crystals were deformed in compression at 850K and the same strain rate to various extents of strains. In each sample, the internal stress was measured through stress reduction tests and the dislocation densities by X-ray measurements. Data about these two parameters follow fairly well the Taylor-Saada relation, provided a correction term was added. It probably corresponds to dislocations which were seen by X-rays, though they did not contribute to crystal hardening.

The Taylor Relation in Compression Deformed Ge Single Crystals. K.Nyilas, C.Dupas, T.Kruml, T.Ungar, J.L.Martin: Journal of Physics - Conference Series, 2010, 240[1], 012025