%0 Journal Article
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%3 improvements.pdf
%X Nitrogen Plasma Immersion Ion Implantation (PIII) has been used to modify the surface chemical structure of Ultra High Molecular Weight Polyethylene (UHMWPE). Grinding and polishing processes based on abrasive papers and alumina pastes have been evaluated with regard to their results on the improvement of polymer surface roughness, which has shown-to be of crucial importance for hardness characterization. Raman spectroscopy, XPS, and Nanoindentation tests were used to characterize the modified surfaces. Experimental results has shown that UHMWPE surface mechanical properties such as hardness and elastic modulus can be improved by induced chain cross-linking between the macromolecules on the polymer surface caused by nitrogen PIII. The new material formed on the surface is Diamond Like Carbon (DLC). As a significant improvement in hardness was obtained. by DLC synthesis on. the treated surface, it is expected a dramatic improvement of abrasion resistance and overall durability of prostheses made with PIII treated UHMWPE.
%8 Dec.
%N 4b
%T Improvements of ultra-high molecular weight polyethylene mechanical properties by nitrogen plasma immersion ion implantation
%@secondarytype PRE PN
%K PLASMA, Plasma Immersion Ion Implantation, Ultra High Molecular Weight Polyethylene, Diamond Like Carbon, Amorphous-carbon films, Surface modification, XPS, PLASMA, Implantação Iônica por Imersão em Plasma, Polietileno com peso molecular alto, DLC, Filmes de carbono, Modificação da superfície.
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%@group LAP-INPE-MCT-BR
%@group LAP-INPE-MCT-BR
%@group LAP-INPE-MCT-BR
%@group LAS-INPE-MCT-BR
%@group LAS-INPE-MCT-BR
%@group LAP-INPE-MCT-BR
%@secondarykey INPE-12560-PRE/7857
%@copyholder SID/SCD
%@issn 0103-9733
%2 sid.inpe.br/iris@1916/2005/06.15.12.44.09
%@affiliation Instituto de Pesquisas Espaciais, Laboratorio Associado Plasma (INPE.LAP)
%@affiliation Instituto de Pesquisas Espaciais, Laboratorio Associado Plasma (INPE.LAP)
%@affiliation Instituto de Pesquisas Espaciais, Laboratorio Associado Plasma (INPE.LAP)
%@affiliation Instituto de Pesquisas Espaciais, Laboratorio Associado de Sensores e Materiais (INPE.LAS)
%@affiliation Instituto de Pesquisas Espaciais, Laboratorio Associado de Sensores e Materiais (INPE.LAS)
%@affiliation Instituto de Pesquisas Espaciais, Laboratorio Associado de Plasma (INPE.LAP)
%@affiliation Universidade Federal do Paraná. Setor de Ciências Exatas (UFPR)
%@project Implantação Iônica por Imersão em Plasma (IIIP) / Implantação com íons de alta energia
%B Brazilian Journal of Physics
%P 1667-1672
%4 sid.inpe.br/iris@1916/2005/06.15.12.44
%D 2004
%V 34
%A Marcondes, André Ricardo,
%A Ueda, Mário,
%A Kostov, K. G.,
%A Beloto, Antonio Fernando,
%A Leite, Nélia Ferreira,
%A Gomes,  Geraldo Francisco,
%A Lepienski, C. M.,
%@dissemination WEBSCI; PORTALCAPES; SCIELO.
%@area ETES