The modifications of optical absorption spectra and of hardness induced by irradiations with various ion speciés in three polymers have been determined quantitatively by means of spectroscopic ellipsometry and of nanoindentation tests. Their analysis in terms of amounts of energy deposited respectively in nuclear collisions and in electronic excitations indicates that the latter have a predominant effect on both properties. The efficiency of ionizations depends on the ablity of radicals formed under each ion impact to interact.
Effects of Ionizations and Displacements on the Hardness and Optical Absorption of Some Ion Irradiated Polymers
MARLETTA, Giovanni
1995-01-01
Abstract
The modifications of optical absorption spectra and of hardness induced by irradiations with various ion speciés in three polymers have been determined quantitatively by means of spectroscopic ellipsometry and of nanoindentation tests. Their analysis in terms of amounts of energy deposited respectively in nuclear collisions and in electronic excitations indicates that the latter have a predominant effect on both properties. The efficiency of ionizations depends on the ablity of radicals formed under each ion impact to interact.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
Effects of ionizations.pdf
solo gestori archivio
Tipologia:
Versione Editoriale (PDF)
Licenza:
NON PUBBLICO - Accesso privato/ristretto
Dimensione
465.14 kB
Formato
Adobe PDF
|
465.14 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
