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Contribution to the study of metallic impurities diffusion in a polymer film (KAPTON) under and out of irradiation; Contribution a l`etude de la diffusion d`impuretes metalliques dans un film polymere (KAPTON) sous et hors irradiation

Abstract

The main topic of this work is the diffusion behaviour in the polymer film Kapton, under and out of irradiation, of metallic coatings with different reactivity (copper, nickel, titanium) deposited by sputtering. The analysis of diffusion profiles has been performed by backscattering spectrometry, which, in association with cross-section microscopy, allows to connect the diffusion behaviour to the microscopic structure of the metal/Kapton interface. Generally speaking, the study under thermal annealing shows the importance of peculiarities of commercials polymers. In particular, additional elements they contain are liable to modify their surface characteristics and, as a consequence, diffusion. So, unlike observations in model polyimides, we show that even weakly reactive metals do not diffuse inside the polymer. Besides, there exists an energy threshold of Ar{sup +} used for sputtering, above which copper layers become very stable and so come up to industry`s expectation. The study under irradiation gives evidence for copper diffusion under irradiation, resulting in 15 mn mean radius spherical clusters inside the modified polymer. This fast diffusion is shown to be due to the concomitant effect of nuclear collisions and temperature. This study is also the opportunity to show dramatic radiation-induced effects in Kapton, more particularly a large modification of  More>>
Authors:
Publication Date:
Dec 18, 1995
Product Type:
Thesis/Dissertation
Report Number:
CEA-R-5713
Reference Number:
SCA: 360605; PA: AIX-28:007405; EDB-97:008107; NTS-97:005759; SN: 97001715326
Resource Relation:
Other Information: TH: These (D. es Sc.).; PBD: 18 Dec 1995
Subject:
36 MATERIALS SCIENCE; METALS; DIFFUSION; IMPURITIES; POLYMERS; FILMS; BACKSCATTERING; COATINGS; COPPER; IRRADIATION; NICKEL; RUTHERFORD SCATTERING; SPECTROSCOPY; SPUTTERING; TITANIUM
OSTI ID:
411272
Research Organizations:
CEA Centre d`Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Direction des Technologies Avancees; Paris-11 Univ., 91 - Orsay (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
Other: ON: DE97610199; TRN: FR9603280007405
Availability:
INIS; OSTI as DE97610199
Submitting Site:
FRN
Size:
193 p.
Announcement Date:

Citation Formats

Marin, N. Contribution to the study of metallic impurities diffusion in a polymer film (KAPTON) under and out of irradiation; Contribution a l`etude de la diffusion d`impuretes metalliques dans un film polymere (KAPTON) sous et hors irradiation. France: N. p., 1995. Web.
Marin, N. Contribution to the study of metallic impurities diffusion in a polymer film (KAPTON) under and out of irradiation; Contribution a l`etude de la diffusion d`impuretes metalliques dans un film polymere (KAPTON) sous et hors irradiation. France.
Marin, N. 1995. "Contribution to the study of metallic impurities diffusion in a polymer film (KAPTON) under and out of irradiation; Contribution a l`etude de la diffusion d`impuretes metalliques dans un film polymere (KAPTON) sous et hors irradiation." France.
@misc{etde_411272,
title = {Contribution to the study of metallic impurities diffusion in a polymer film (KAPTON) under and out of irradiation; Contribution a l`etude de la diffusion d`impuretes metalliques dans un film polymere (KAPTON) sous et hors irradiation}
author = {Marin, N}
abstractNote = {The main topic of this work is the diffusion behaviour in the polymer film Kapton, under and out of irradiation, of metallic coatings with different reactivity (copper, nickel, titanium) deposited by sputtering. The analysis of diffusion profiles has been performed by backscattering spectrometry, which, in association with cross-section microscopy, allows to connect the diffusion behaviour to the microscopic structure of the metal/Kapton interface. Generally speaking, the study under thermal annealing shows the importance of peculiarities of commercials polymers. In particular, additional elements they contain are liable to modify their surface characteristics and, as a consequence, diffusion. So, unlike observations in model polyimides, we show that even weakly reactive metals do not diffuse inside the polymer. Besides, there exists an energy threshold of Ar{sup +} used for sputtering, above which copper layers become very stable and so come up to industry`s expectation. The study under irradiation gives evidence for copper diffusion under irradiation, resulting in 15 mn mean radius spherical clusters inside the modified polymer. This fast diffusion is shown to be due to the concomitant effect of nuclear collisions and temperature. This study is also the opportunity to show dramatic radiation-induced effects in Kapton, more particularly a large modification of mechanical and optical properties with the loss of more volatile elements (H, N,O). With regard to methodology, this study shows the strong ambiguity in the RBS spectrum interpretation in the case of lateral non-uniformity, and we propose a model giving access to the statistical distribution of the non-uniform property of the target. (author). 262 refs., 99 figs., 8 appends.}
place = {France}
year = {1995}
month = {Dec}
}