Zobrazeno 1 - 10
of 102
pro vyhledávání: '"James L. Lauer"'
Autor:
James L. Lauer
Publikováno v:
Tribology Letters. 7:129-135
Recent publications are reviewed that illustrate friction and wear reductions by friction‐generated surface coatings in a number of applications. The emphasis is on surface chemistry. Topics included are the friction of polymers with and without fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a01f1550a81faec2f9186afc7ca2bf24
https://doi.org/10.1023/a:1019177505446
https://doi.org/10.1023/a:1019177505446
Autor:
James L. Lauer
Publikováno v:
Applied Spectroscopy. 50:1378-1388
Commercial α-silicon nitride plates and balls used in simulated sliding bearing tests were found to fluoresce under 514.5-nm argon-ion laser excitation after heating to above 350 °C in a stream of argon. Wear track areas fluoresced much more intens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b970ae1527d6a6e612b31cb43d24a46
https://doi.org/10.1366/0003702963904692
https://doi.org/10.1366/0003702963904692
Publikováno v:
Surface and Coatings Technology. :446-452
Extended duration high temperature (above 500°C) lubrication of silicon nitride sliding and rolling contacts was accomplished by solid carbon deposited and replenished via the decomposition of carbonaceous gas streams directed towards the tribologic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c31011065d4530ea68aa1867bfb83354
https://doi.org/10.1016/0257-8972(94)90200-3
https://doi.org/10.1016/0257-8972(94)90200-3
Publikováno v:
Tribology Transactions. 37:566-572
Magnetic storage discs overcoated under different conditions with sputtered carbon in the presence of hydrogen were analyzed for hydrogen/carbon content by nuclear reaction analysis (NRH:C), for thickness and optical absorption by ellipsometry, for c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c67fcc85fd029bc2d7c52f8ec5af0e60
https://doi.org/10.1080/10402009408983330
https://doi.org/10.1080/10402009408983330
Publikováno v:
Surface and Coatings Technology. 62:399-405
Pin-on-disk and four-ball tests with steel and silicon nitride surfaces canbe lubricated by carbon deposited as a result of pyrolysis in the tribo-contacts of ethylene or other carbonaceous gases at bulk temperatures in excess of 500°C. The carbon d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f3d172ae501874986eb0da6de16b2a5
https://doi.org/10.1016/0257-8972(93)90274-r
https://doi.org/10.1016/0257-8972(93)90274-r
Publikováno v:
Wear. 170:173-183
Raman spectroscopy was applied in the wear track region of carbon overcoated magnetic storage disks after drag and contact start/stop (CSS) tests with a manganese-zinc ferrite slider. The ratio of the relative intensities of the two major carbon band
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ea1882685dd6f199f2b2c7424469e09
https://doi.org/10.1016/0043-1648(93)90238-h
https://doi.org/10.1016/0043-1648(93)90238-h
Publikováno v:
Wear. :498-507
Sliding tests with a pin-on-disc tribometer and both sliding and rolling tests with a modified four-ball tester at bulk temperatures of about 500 °C and initial contact pressures of about 2.2 GPa have demonstrated up to 80% reductions of friction an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b6a955ae1f45eaaf5802f85c4752875
https://doi.org/10.1016/0043-1648(93)90535-t
https://doi.org/10.1016/0043-1648(93)90535-t
Autor:
Leon DuPlessis, James L. Lauer
Publikováno v:
Tribology Transactions. 36:19-26
Raman spectra of carbon overcoats of simulated hard magnetic storage discs were obtained for different conditions of deposition by argon ion-induced sputtering. Both an increase of substrate temperature and of argon ion pressure improved the spectral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::002b359120fbf6b73c9295c7952efa25
https://doi.org/10.1080/10402009308983127
https://doi.org/10.1080/10402009308983127
Autor:
James L. Lauer
Publikováno v:
Chemical & Engineering News Archive. 79:6-8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ae0b9b69b6d1c42dca1829983eccd7b
https://doi.org/10.1021/cen-v079n036.p006
https://doi.org/10.1021/cen-v079n036.p006
Autor:
Scott R. Dwyer, James L. Lauer
Publikováno v:
Tribology Transactions. 33:529-534
Carbonaceous (graphitic) lubricants are stable even at temperatures above 500°C and replenishable by catalytic decomposition of gaseous hydrocarbons on the wear surfaces themselves. Thus nickel-containing steels become coated with lubricating carbon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a305ff3d2abdcc8515f5aff5aeb705f
https://doi.org/10.1080/10402009008981985
https://doi.org/10.1080/10402009008981985