Study of beta-irradiation effects on the microstructure of heavy density polyethylene (HDPE) using (PALT)
Other Title(s)
دراسة تأثيرات الشعيع بأشعة بيتا على البنية الدقيقة للبولي إثلين عالي كثافة (HDPE) باستخدام تقنية زمن العمر لفناء البوزترون
Joint Authors
Salman, Ahmad Abd al-Razzaq
al-Bayati, Abd al-Husayn Abd al-Amir Mahmud
Abd Allah, Ali Atiyyah
Source
Issue
Vol. 43, Issue 3 (31 Dec. 2002), pp.17-31, 15 p.
Publisher
University of Baghdad College of Science
Publication Date
2002-12-31
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Abstract EN
Beta - irradiation effects on the microstructure of IIDPE samples have been investigated using Positron Annihilation Lifetime Technique (PALT).
The irradiation effects on the ortho-positronium (o-ps) Lifetime τ3.
the free positron annihilation lifetime τ2.
the free-volume hole size (Vh) and the free volume fraction (fh) were measured as functions of Beta irradiation - dose up to a total dose of 30.
28 kGy.
The results show that the value of τ3.
Vh and fh, increase with increasing Beta dose up to a total dose of 3.1 kGy.
with maximum percentage of changes of 36% .
75% and 12.5% , respectively .
where τ2 reaches its maximum value at 0.227 kGy Beta-dose with increment of 177.1%.
Above those doses the values show nonlinearity changes up to a maximum Beta-dose of 30.28 kGy.
The results disussed in viewpoint of Beta - irradiation induce degradation, cross-linking and increasing crystallinity in the amorphous regions of MDPE
American Psychological Association (APA)
Abd Allah, Ali Atiyyah& al-Bayati, Abd al-Husayn Abd al-Amir Mahmud& Salman, Ahmad Abd al-Razzaq. 2002. Study of beta-irradiation effects on the microstructure of heavy density polyethylene (HDPE) using (PALT). Iraqi Journal of Science،Vol. 43, no. 3, pp.17-31.
https://search.emarefa.net/detail/BIM-596308
Modern Language Association (MLA)
Abd Allah, Ali Atiyyah…[et al.]. Study of beta-irradiation effects on the microstructure of heavy density polyethylene (HDPE) using (PALT). Iraqi Journal of Science Vol. 43, no. 3 (2002), pp.17-31.
https://search.emarefa.net/detail/BIM-596308
American Medical Association (AMA)
Abd Allah, Ali Atiyyah& al-Bayati, Abd al-Husayn Abd al-Amir Mahmud& Salman, Ahmad Abd al-Razzaq. Study of beta-irradiation effects on the microstructure of heavy density polyethylene (HDPE) using (PALT). Iraqi Journal of Science. 2002. Vol. 43, no. 3, pp.17-31.
https://search.emarefa.net/detail/BIM-596308
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 29-30
Record ID
BIM-596308
