Zobrazeno 1 - 10
of 82
pro vyhledávání: '"James E. Krzanowski"'
Autor:
German S. Fox-Rabinovich, Iosif Gershman, Mohamed A. El Hakim, Mohamed A. Shalaby, James E. Krzanowski, Stephen C. Veldhuis
Publikováno v:
Lubricants, Vol 2, Iss 3, Pp 113-123 (2014)
Tribofilms are dynamic structures that form at the interface during frictional sliding. These films play a significant role in friction control, particularly under heavy loaded/high temperature conditions, such as those found at the cutting tool/chip
Externí odkaz:
https://doaj.org/article/4b7e05fa241b4a2a9368cf5ff750367a
Autor:
James E. Krzanowski
Publikováno v:
Lubricants, Vol 1, Iss 1, Pp 1-2 (2012)
Welcome to Lubricants, a new open access journal for researchers and practitioners working in the field of tribology. The journal will publish peer-reviewed research papers, reviews, letters and communications, as well as papers on research ideas and
Externí odkaz:
https://doaj.org/article/400634cd7ebc414690b0fbbd10e499de
Publikováno v:
Surface and Coatings Technology. 314:105-112
Reactive magnetron sputtering was used to deposit coatings from a 304 stainless steel target (nominal composition 18%Cr, 8% Ni, balance Fe). Deposition was carried out in a mixed argon/nitrogen atmosphere with Ar:N 2 ratios of 4, 1.5 and 1, and a tot
Publikováno v:
Coatings, Vol 9, Iss 5, p 329 (2019)
Coatings
Volume 9
Issue 5
Coatings
Volume 9
Issue 5
This study examines the structure and properties of stainless steel coatings deposited to incorporate large concentrations of nitrogen along with varying amounts of titanium. Deposition was carried out using magnetron co-sputtering of stainless steel
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 50:1-8
This study compares the performance of CVD coated tungsten-carbide tools having an intermediate Al 2 O 3 layer to low content PCBN tools in hard turning of D2 tool steel (52 HRC). Results revealed that the coated carbide tool can outperform PCBN in m
Publikováno v:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII.
We are reporting the investigation result of using multilayer thin film structures for channeling and concentrating soft gamma rays with energies greater than 100 keV, beyond the reach of current grazing-incidence hard X-ray mirrors. This will enable
Autor:
M.A. Shalaby, German S. Fox-Rabinovich, Stephen C. Veldhuis, James E. Krzanowski, Mohamed A. El Hakim, Iosif S. Gershman
Publikováno v:
Lubricants, Vol 2, Iss 3, Pp 113-123 (2014)
Tribofilms are dynamic structures that form at the interface during frictional sliding. These films play a significant role in friction control, particularly under heavy loaded/high temperature conditions, such as those found at the cutting tool/chip
Autor:
Daniel J. Foley, James E. Krzanowski
Publikováno v:
Coatings, Vol 4, Iss 2, Pp 308-319 (2014)
Ti1−xCrxN thin-film samples were sputter-deposited with lateral composition gradients x = 0.1–0.9 across each sample. In order to determine the effect of Cr content on oxidation, samples were air-oxidized at temperatures ranging from 650 to 950
Wear mechanisms of several cutting tool materials in hard turning of high carbon–chromium tool steel
Autor:
G.K. Dosbaeva, Stephen C. Veldhuis, M.A. Shalaby, James E. Krzanowski, Magdy M. Abdelhameed, M.A. El Hakim
Publikováno v:
Tribology International. 70:148-154
The present study illustrates the performance of three different cutting tool materials, namely: PCBN, TiN coated PCBN, and mixed aluminum ceramic (Al 2 O 3 +TiC) in the turning of medium hardened D2 tool steel (52 HRC). Formation of Cr–O tribofilm
Autor:
Farzane Shirazi, Peter F. Bloser, John G. Tsavalas, Jason S. Legere, Emily N. Wong, James E. Krzanowski, Mark L. McConnell, Paul H. Aliotta, Olof Echt
Publikováno v:
SPIE Proceedings.
We are investigating the use of thin-film, multilayer structures to form optics capable of concentrating soft gamma rays with energies greater than 100 keV, beyond the reach of current grazing-incidence hard X-ray mirrors. Alternating layers of low-