Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Andreas Lachenwitzer"'
Publikováno v:
Tribology International. 44:737-750
High and ultra-mild wear of Al–Si alloys under lubrication is measured (a) by comparison of initial and retained gold concentration in surfaces, (b) by tracking gold in the effluent lubricant or (c) alloy specific elements, and (d) by stylus profil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfc1c82f3a2336a6597210ba57dc2b03
https://doi.org/10.1016/j.triboint.2009.12.011
https://doi.org/10.1016/j.triboint.2009.12.011
Autor:
Gavin Pereira, W.N. Lennard, Y.-R. Li, Dmitry Shakhvorostov, Andreas Lachenwitzer, Peter R. Norton
Publikováno v:
Tribology Letters. 33:143-152
A novel method for the quantitative determination of the wear of materials at very low wear rates is introduced here. The main concept involves implanting gold as a trace marker into the tested materials, and measuring the gold concentration and dept
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11a5a208e78e75f869b35cf6dbd11d02
https://doi.org/10.1007/s11249-008-9401-7
https://doi.org/10.1007/s11249-008-9401-7
Publikováno v:
Tribology Letters. 29:11-22
X-ray absorption near edge structure (XANES) spectroscopy has been used to characterize the chemistry of thermal films on steel samples, which were generated from a mineral base oil containing a zinc dialkyl dithiophosphate (ZDDP) additive. These fil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f26d3598e0fcecd17028f64e6c048f8
https://doi.org/10.1007/s11249-007-9277-y
https://doi.org/10.1007/s11249-007-9277-y
Publikováno v:
Tribology Letters. 27:245-253
X-ray absorption near-edge structure (XANES) spectroscopy has been used to characterize the chemistry of antiwear (AW) films generated from mineral base oil containing a zinc dialkyl dithiophosphate additive. These films were formed on rubbed steel s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb9538f9ab2e4ff3a4ddfcab948891c2
https://doi.org/10.1007/s11249-007-9213-1
https://doi.org/10.1007/s11249-007-9213-1
Autor:
Gavin Pereira, Pupa U. P. A. Gilbert, T. Regier, Masoud Kasrai, Yongfeng Hu, Peter R. Norton, Andreas Lachenwitzer, Yue-Rong Li, G. M. Bancroft, L. Zuin, Mike Abrecht
Publikováno v:
Tribology - Materials, Surfaces & Interfaces. 1:105-112
The interactions of a commercially available fully formulated oil on an Al–Si alloy have been studied, and a chemical and mechanical characterisation of the resulting surface films has been undertaken to compare with the results found on 52100 stee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9cd49f403f7652b54bbde48e0a8333f
https://doi.org/10.1179/175158407x231303
https://doi.org/10.1179/175158407x231303
Autor:
R. I. R. Blyth, Andreas Lachenwitzer, Masoud Kasrai, Pupa U. P. A. Gilbert, Mike Abrecht, T. Regier, G. M. Bancroft, Peter R. Norton, J. Thompson, Gavin Pereira
Publikováno v:
Tribology - Materials, Surfaces & Interfaces. 1:48-61
The authors report, for the first time, a comprehensive chemical and mechanical characterisation of antiwear films prepared from a fully formulated oil that is commercially available. Wear increases substantially when using the fully formulated oil c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42f2d67e7f7aeebc62d77f8620d737c2
https://doi.org/10.1179/175158407x189293
https://doi.org/10.1179/175158407x189293
Autor:
Gavin Pereira, Yang-Tse Cheng, David Munoz-Paniagua, Andreas Lachenwitzer, Masoud Kasrai, Thomas A. Perry, T. W. Capehart, Peter R. Norton
Publikováno v:
Tribology - Materials, Surfaces & Interfaces. 1:4-17
The interaction of a friction modifier and a calcium phenate detergent additive, with zinc dialkyl dithiophosphates (ZDDPs) in the formation of antiwear films on A383, has been studied using synchrotron radiation and nanoindentation techniques. X-ray
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b46d19aca6d885d6f5394f0c1b6503f
https://doi.org/10.1179/175158407x181499
https://doi.org/10.1179/175158407x181499
Autor:
Thomas A. Perry, Masoud Kasrai, Gavin Pereira, Yang-Tse Cheng, B. H. Frazer, Andreas Lachenwitzer, Pupa U. P. A. Gilbert, T. W. Capehart, Peter R. Norton
Publikováno v:
Tribology Letters. 26:103-117
The simulation of the lubrication of aluminum–silicon (Al–Si) alloy cylinder-bore conditions is an important goal in automotive tribology. This study describes the use of X-ray absorption near edge structure (XANES) to determine the macro-chemist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e0293ff3fa8e06f8961d92266897df1
https://doi.org/10.1007/s11249-006-9125-5
https://doi.org/10.1007/s11249-006-9125-5
Autor:
Gavin Pereira, Masoud Kasrai, Andreas Lachenwitzer, Yang-Tse Cheng, David Munoz-Paniagua, T. Weston Capehart, Thomas A. Perry, Peter R. Norton
Publikováno v:
Wear. 262:461-470
The nanomechanical properties of antiwear films formed from zinc dialkyl-dithiophosphates (ZDDPs) on steel have been studied by nanoindentation techniques as a function of temperature. X-ray absorption P K- and L- near edge structure (XANES) spectros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5771482019b56be708d33484c00e86cf
https://doi.org/10.1016/j.wear.2006.06.016
https://doi.org/10.1016/j.wear.2006.06.016
Autor:
Mike Abrecht, David Munoz-Paniagua, Masoud Kasrai, Pupa U. P. A. Gilbert, Gavin Pereira, Peter R. Norton, Andreas Lachenwitzer
Publikováno v:
Tribology Letters. 23:109-119
Phosphorus L-edge and oxygen K-edge X-ray PhotoEmission Electron Microscopy (XPEEM) have been used to characterize the chemical nature of the cation present in tribochemical films via comparison with model Fe2+ and Zn2+ compounds. The results are con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f577c5de3f975e7f453e55303ae18be
https://doi.org/10.1007/s11249-006-9059-y
https://doi.org/10.1007/s11249-006-9059-y