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Positron lifetime study of helium clustering in Ni and Ni‐1 at.% Ti
Author(s) -
Amarendra G.,
Viswanathan B.,
Gopinathan K. P.
Publication year - 1987
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170221233
Subject(s) - helium , bubble , impurity , positron , materials science , liquid bubble , trapping , atomic physics , nuclear physics , chemistry , physics , mechanics , electron , ecology , organic chemistry , biology
Helium clustering and bubble growth have been studied in Ni and Ni‐1 at % Ti through positron lifetime measurements. Helium pressure in the bubble as well as bubble concentration have been estimated and compared for the cases of Ni and Ni‐1 at % Ti. The results seem to indicate enhanced helium trapping due to substitutional Ti impurity in the host Ni.