Zobrazeno 1 - 10
of 221
pro vyhledávání: '"Jerzy Dryzek"'
Publikováno v:
eXPRESS Polymer Letters, Vol 16, Iss 10, Pp 1099-1112 (2022)
In this work, new furan-based poly(ester amide)s of various compositions were synthesised by the melt polycondensation method. The chemical structure and composition were determined by nuclear magnetic resonance spectroscopy (1H NMR) and Fourier tran
Externí odkaz:
https://doaj.org/article/46213829b6b24eb0bff17493cec29eca
Autor:
Jerzy Dryzek, Mirosław Wróbel
Publikováno v:
Journal of Tribology. 145
Positron lifetime and electron backscatter diffraction studies were performed on pure vanadium samples subjected to the sliding test. The changes in the microstructure produced in this test are extending even to a depth of about 450 µm. As shown by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afb9636a7f11d4a3d7216b67ba844ebe
https://doi.org/10.1115/1.4062297
https://doi.org/10.1115/1.4062297
Autor:
Jerzy Dryzek
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 236:1962-1971
The report presents the positron annihilation studies of subsurface zone generated in pure titanium exposed to a long period dry sliding test. The total depth of the subsurface zone induced is detected at about 250 µm. Only dislocations and vacancy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e7a89d16fdd85f3581d122aba844bac
https://doi.org/10.1177/13506501211060591
https://doi.org/10.1177/13506501211060591
Autor:
Jerzy Dryzek
Publikováno v:
Acta Physica Polonica A. 137:196-200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a30d7db55659c1674045650fdfb27dc2
https://doi.org/10.12693/aphyspola.137.196
https://doi.org/10.12693/aphyspola.137.196
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 465:73-78
The thermal evolution of defects inside and beyond the implantation layer in Si wafer exposed to the irradiation with 25 keV C+, N+ and Ar+ ions with different doses has been investigated by positron beam measurements. Two types of defects were detec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef0bbeeaa3789b5fd995f10a0e72313b
https://doi.org/10.1016/j.nimb.2019.12.026
https://doi.org/10.1016/j.nimb.2019.12.026
Autor:
Jerzy Dryzek
Publikováno v:
Journal of Applied Physics. 133:055104
The formulas obtained for deconvolution of positron mean lifetime results in the sequential etching technique for detecting defect depth profiles are presented. In this experiment, only the conventional positron lifetime measurement with radioisotope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d306dea66e364af0c7e4f0ac86d17e83
https://doi.org/10.1063/5.0136261
https://doi.org/10.1063/5.0136261
Autor:
Jerzy Dryzek, Mirosław Wróbel
Publikováno v:
Scripta Materialia. 221:114972
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83591821df09625c728e700d72b352a1
https://doi.org/10.1016/j.scriptamat.2022.114972
https://doi.org/10.1016/j.scriptamat.2022.114972
Autor:
Jerzy Dryzek, Krzysztof Siemek
Publikováno v:
Tribology Transactions. 62:658-666
Positron lifetime research has been performed on well-annealed pure silver samples after dry sliding, compression, and sandblasting processes. These treatments affect the surface but also have been...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e83539acf7fcd2baeef69cef4ccd8724
https://doi.org/10.1080/10402004.2019.1600769
https://doi.org/10.1080/10402004.2019.1600769
Autor:
Jerzy Dryzek
Publikováno v:
Tribology International. 131:268-276
Investigation of the positron lifetime depth profile in pure iron, copper, stainless steel and silver alloy subjected to a dry sliding test have been performed. Near the worn surface, at the depth less than 10 μm the so called tribolayer is visible.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7825026fea58e8287efa27d5149836ac
https://doi.org/10.1016/j.triboint.2018.10.031
https://doi.org/10.1016/j.triboint.2018.10.031
Autor:
Katarzyna S. Bandzierz, Dariusz M. Bieliński, Louis A. E. M. Reuvekamp, Anke Blume, Wilma K. Dierkes, Jerzy Dryzek
Publikováno v:
Rubber chemistry and technology, 92(1), 69-89. American Chemical Society
Considerable attention is paid to the influence of crosslink density and crosslink structures on the behavior of polymer chains and properties of elastomers. However, a very important parameter seems to be underestimated: the modifications to the pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7fcc2af5c2ff1dac2ed99838de9b140
https://doi.org/10.5254/rct.18.82685
https://doi.org/10.5254/rct.18.82685