TY - JOUR
T1 - Ion-beam induced defect formation in α-alumina with applied electric field
AU - Higuchi, T.
AU - Yasuda, K.
AU - Tanaka, K.
AU - Shiiyama, K.
AU - Kinoshita, C.
PY - 2003/5/1
Y1 - 2003/5/1
N2 - An attempt is made to understand the kinetic behavior of radiation-induced defects in α-Al2O3 irradiated with applied electric fields. To this end, a special device is developed for ion-beam irradiation on insulating ceramics at temperatures up to 920 K and with applied electric fields to 300 kV/m. We have found that electric fields of 100 and 300 kV/m influence the nucleation-and-growth process of defect clusters in α-Al2O3 irradiated with 100 keV He+ ions. The electric fields reduce the formation of interstitial-type dislocation loops at 760 K and retard the formation of defect clusters (probably vacancy-type clusters) at 870 K. Results are discussed in terms of the directed migration of interstitials and the recombination rate of vacancies and interstitials.
AB - An attempt is made to understand the kinetic behavior of radiation-induced defects in α-Al2O3 irradiated with applied electric fields. To this end, a special device is developed for ion-beam irradiation on insulating ceramics at temperatures up to 920 K and with applied electric fields to 300 kV/m. We have found that electric fields of 100 and 300 kV/m influence the nucleation-and-growth process of defect clusters in α-Al2O3 irradiated with 100 keV He+ ions. The electric fields reduce the formation of interstitial-type dislocation loops at 760 K and retard the formation of defect clusters (probably vacancy-type clusters) at 870 K. Results are discussed in terms of the directed migration of interstitials and the recombination rate of vacancies and interstitials.
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U2 - 10.1016/S0168-583X(03)00693-1
DO - 10.1016/S0168-583X(03)00693-1
M3 - Conference article
AN - SCOPUS:0037568065
VL - 206
SP - 103
EP - 108
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
SN - 0168-583X
T2 - 13th International conference on Ion beam modification of Mate
Y2 - 1 September 2002 through 6 September 2002
ER -