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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(01) [January 2006] >
| Title: | Study of ion induced modification in Makrofol-KG polycarbonate by positron annihilation lifetime measurements |
| Authors: | Kumar, Rajesh
Prasad, Rajendra |
| Keywords: | Makrofol-KG polycarbonate
Si8+ ion irradiation
Positron lifetime
Free volume
Ion beam modification |
| Issue Date: | Jan-2006 |
| Publisher: | CSIR |
| IPC Code: | G08G64/00 |
| Abstract: | Latent ion
tracks produced in the polymers due to the damage produced by the passage of
swift heavy ions contain amorphous material with highest degree of disorder,
changing the free volume properties, which have strong correlation with the
macroscopic properties of the material. Positron Annihilation Lifetime
Spectroscopy (PALS) is a non-destructive and non-interfering probe, having high
detection efficiency for free volume hole properties and provides direct
information about the dimension, content and hole size distribution of free
volume in polymers. The effect of irradiation of Si8+ 100 MeV ions
on Makrofol-KG polycarbonate by PALS is reported here. From the ortho positronium
(o-Ps) lifetime, mean free volume,
radius and average free volume have been obtained. |
| Page(s): | 9-12 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(01) [January 2006]
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