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Publikacje Pracowników Politechniki Lubelskiej

MNiSW
70
Lista 2021
Status:
Autorzy: Kavetskyy Taras, Stebeletska Nataliia, Borc Jarosław, Kravtsiv Mariana, Graz Katarzyna, Šauša Ondrej, Švajdlenková Helena, Kleinová Angela, Kivg Arnold, Tadeus Olga, Stepanov Andrey L.
Dyscypliny:
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Rok wydania: 2022
Wersja dokumentu: Drukowana | Elektroniczna
Język: angielski
Wolumen/Tom: 200
Numer artykułu: 111038
Strony: 1 - 6
Impact Factor: 4,0
Web of Science® Times Cited: 2
Scopus® Cytowania: 2
Bazy: Web of Science | Scopus
Efekt badań statutowych NIE
Finansowanie: This work was supported in part by the Ministry of Education and Science of Ukraine (projects Nos. 0117U007142, 0118U000297, 0119U100671, 0121U109543, and 0122U000874), National Research Foundation of Ukraine (project No. 2020.02/0100), Slovak Grant Agency VEGA (projects Nos. 2/0157/17, 2/0029/20, and 2/0134/21) and Slovak Research and Development Agency (project No. APVV-16-0369). TK and MK also acknowledge the SAIA (Slovak Academic Information Agency) for scholarships in the IPSAS in the framework of the National Scholarship Programme of the Slovak Republic.
Materiał konferencyjny: NIE
Publikacja OA: NIE
Abstrakty: angielski
Long-range effect (LRE), which is known for ion-implanted crystals of diamond, metals and semiconductors, has also been observed in ion-implanted polymers. The effect is that a change in the physical characteristics of the material is observed far beyond the region of ion penetration into the sample. The present study was performed with polymethylmethacrylate (PMMA) implanted with 40 keV B+ ions with different fluences of ions and current density less than 2 μA cm−2. The samples were studied by nanoindentation technique with an ultra-nanohardness tester (UNHT), positron annihilation lifetime spectroscopy (PALS), and attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR). It was found that the changes of nanohardness induced by ion irradiation are observed up to a distance of about 1300 nm from the surface. This distance is much larger the size of implanted region that is of about 400 nm. The obtained PALS and ATR-FTIR results also testify that the microstructural changes occur far beyond the implanted layer of polymer. It is assumed that the observed effect is explained by the occurrence of internal mechanical stresses due to polymer carbonization in the implanted region of the sample.