Defect recovery after 77 K plastic deformation in bismuth

  title={Defect recovery after 77 K plastic deformation in bismuth},
  author={Ignace Lemahieu and L. Dorikens-Vanpraet and Maurice Dorikens and Danny Segers},
Dopplerbroadening measurements were performed in 77 K deformed bismuth in the temperature range between 80 K and 410 K. An important trapping effect was observed. Two recovery stages were found, one at 230 K and the other at 380 K. The measurements were compared with the results obtained from positron annihilation lineshape measurements in as-received polycrystalline bismuth samples of different purities, and in room temperature deformed bismuth samples. In all samples a recovery stage at 380 K… CONTINUE READING