Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Vilas N. Koinkar"'
Autor:
Bharat Bhushan, Vilas N. Koinkar
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 211:365-372
For long durability of magnetic media and head sliders, protective overcoats of hydrogenated amorphous carbon (a-C:H) are generally used. In this study, microtribological studies of hydrogenated amorphous carbon coatings deposited on a single-crystal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a2415463c91b3b52fc315057764929c
https://doi.org/10.1243/1350650971542552
https://doi.org/10.1243/1350650971542552
Autor:
Vilas N. Koinkar, Bharat Bhushan
Publikováno v:
Journal of Applied Physics. 81:2472-2479
The effect of scan size (scan length) and surface roughness on microscale friction was studied using atomic force/friction force microscopy. Three silicon specimens with different surface roughnesses were studied. Surface height and friction force pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0a8c447c05cc9c78de50fea7dffcd30
https://doi.org/10.1063/1.363954
https://doi.org/10.1063/1.363954
Autor:
Vilas N. Koinkar, Bharat Bhushan
Publikováno v:
Wear. 202:110-122
Surface topography, friction, scratching, wear and nanoindentation behavior of head slider materials were studied using atomic force/ friction force microscopy (AFM/FFM). Materials studied include polycrystalline Al 2 O 3 , Al 2 O 3 TiC (70-30 wt.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d2ed041725e5c8a8590b288352421e3
https://doi.org/10.1016/s0043-1648(96)07321-8
https://doi.org/10.1016/s0043-1648(96)07321-8
Autor:
Bharat Bhushan, Vilas N. Koinkar
Publikováno v:
Sensors and Actuators A: Physical. 57:91-102
Microelectromechanical systems (MEMS) devices are made of doped single-crystal silicon, LPCVD polysilicon films and other ceramic films. Very little is understood about tribology and mechanical characterization of these materials on micro- to nanosca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::657b9007cb5c6efd25b14f58aed9632a
https://doi.org/10.1016/s0924-4247(97)80099-4
https://doi.org/10.1016/s0924-4247(97)80099-4
Autor:
Vilas N. Koinkar, Bharat Bhushan
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 14:2378-2391
Microtribological studies were performed on unlubricated and lubricated (Z‐15 and Z‐DOL with hydroxyl end groups) silicon, double grafted C18 layer, Langmuir–Blodgett (LB) film, gold film and mica samples in ambient, dry nitrogen and dry air en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7a3506b35fd0bfc909d87813353cc09
https://doi.org/10.1116/1.580026
https://doi.org/10.1116/1.580026
Autor:
Bharat Bhushan, Vilas N. Koinkar
Publikováno v:
Surface and Coatings Technology. :655-669
For “near” contact recording applications, the thickness of the protective hard amorphous carbon overcoat and its surface roughness need to be reduced further to increase the magnetic recording density. Mechanical and tribological characterizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe97c6e41d044a838f22bb0ec2ab9bef
https://doi.org/10.1016/0257-8972(96)80003-x
https://doi.org/10.1016/0257-8972(96)80003-x
Autor:
Bharat Bhushan, Ashok V. Kulkarni, Vilas N. Koinkar, Mathieu Boehm, Ludovic Odoni, Claude Martelet, Michel Belin
Publikováno v:
Langmuir. 11:3189-3198
Organized and dense monolayers were produced by chemical grafting of molecules and by Langmuir Blodgett (L-B) deposition. Friction, wear and indentation of these films on a microscale have been studied using atomic force microscopy friction force mic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9f03ab336b4d9c250fd800697a7442b
https://doi.org/10.1021/la00008a052
https://doi.org/10.1021/la00008a052
Autor:
Bharat Bhushan, Vilas N. Koinkar
Publikováno v:
Wear. 180:9-16
Atomic force microscopy (AFM) and its modification-friction force microscopy (FFM) are becoming increasingly important in the understanding of friction, wear, lubrication and nanomechanical property measurements. We describe modified AFM and FFM tech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f610ffe41efea3fb8807b5b4d74dfbe
https://doi.org/10.1016/0043-1648(94)06534-9
https://doi.org/10.1016/0043-1648(94)06534-9
Autor:
Vilas N. Koinkar, Bharat Bhushan
Publikováno v:
Tribology Transactions. 38:119-127
Atomic force microscopy (AFM) and friction force microscopy (FFM) are used to conduct microtribological studies of thin polyethylene terephthalate (PET) films which are commonly used in many industrial applications including as a magnetic tape substr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fbb3bd915630ea6d6c251725830a23e
https://doi.org/10.1080/10402009508983387
https://doi.org/10.1080/10402009508983387
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 208:17-29
Scanning tunnelling microscopy (STM), atomic force microscopy (AFM) and the modifications of AFM [such as friction force microscopy (FFM)] are becoming increasingly important in the understanding of fundamental mechanisms of friction, wear and lubric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::094eb1af877ae4d63603956b57298c43
https://doi.org/10.1243/pime_proc_1994_208_346_02
https://doi.org/10.1243/pime_proc_1994_208_346_02