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Annealing of deffects in γ-irradiated LiF studied by positron annihilation

✍ Scribed by M.K. Georgieva; P.L. Mishev; G.Ch. Toumbev


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
127 KB
Volume
116
Category
Article
ISSN
0375-9601

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Ah&met-The method of positron annihilation was used to study changes of free volume in polycarbonate. Annealing at 180°C and pressure 808 MPa causes significant changes of free volume (-23%) compared to nonannealed polycarbonate. The free volume compressibility was estimated to be -3.10-' MPa-'. The