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In this paper are presented the possibilities to attain the artificial intelligence features of slide micro-bearings taking into account: 1. Cooperation between super thin boundary lubricant layer and thin superficial layer lying on the micro-bearing shaft and sleeve with various shapes. 2. Application of a novel method of depositing thin organic and inorganic layer (superficial layer) onto a metal substrate utilizing electro-spraying (electrostatic atomization) method. The new achievements presented in this paper are aimed at application of this technology to functional layer deposition in micro-bearings. Electro-spraying is a low-energy process of liquid atomisation by means of electrical forces. Electro-spraying device consists of a capillary nozzle connected to a high electric potential whereas the substrate is grounded. The liquid flowing out the nozzle is subjected to an electrical stress, and fine droplets are generated from the meniscus or the jet formedat the nozzle outlet. Depending on physical properties of the liquid to be spraye dań d spraying conditions, the size of the droplets can be in the submicron size range. In the electro-spraying process, a solution or a suspension of a material to be deposited is atomised into droplets, which can be targeted onto a substrate to form a condensed product, for example a thin layer after solvent evaporation. The deposition efficiency of charged droplets on a target is much higher than for uncharged ones due to electric forces, which drive the droplets along the electric filed lines towards the substrate.
Wydawca
Czasopismo
Rocznik
Tom
Strony
493--498
Opis fizyczny
Bibliogr. 28 poz., rys.
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autor
autor
autor
- Technical University of Koszalin Institute of Mechatronics, Nanotechnology and Vacuum Technique Racławicka Street 15-17, 75-620 Koszalin, Poland tel: +48 505729119, fax: +48 94 3478489, krzysztof.wierzcholski@wp.pl
Bibliografia
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- [7] Hol, S. A. J., Lomonova, E., Vandenput, A. J. A., Design of a magnetic gravity compensation system, Elsevier, Precision Engineering, Vol. 30, pp. 265-273, 2006.
- [8] Hwang, T., Ono, K., Analysis and design of hydrodynamic journal air bearings for high performance HDD spindle, Microsystems Technologies, Vol. 9, pp. 386-394, 2003.
- [9] Jang, G. H., Kim, D. K., Han, J. H., Kim, C. S., Analysis of dynamic characteristics of HDD spindle system supported by ball bearing due to temperature variation, Microsystem Technologies, Vol. 9, pp. 243-249, 2003.
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- [14] Jaworek, A., Sobczyk, A. T., Electro-spraying route to nanotechnology, An overview, J. Electrostatics, Vol. 66, No. 3-4, pp. 197-219, 2008.
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- [16] Jaworek, A., Micro- and nano-particle production by electro-spraying, Powder Technol.,Vol. 176, No. 1, pp. 18-35, 2007.
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- [23] Teo, C. J., Spakovszky, Z. S., Modelling and Experimental Investigation of Micro-hydrostatic Gas Thrust Bearing for Micro-turbomachines, ASME, Journal of Turbomachinery, Vol. 128, pp. 597-605, 2006.
- [24] Wierzcholski, K., Boundary conditions on the bio cell surfaces for nano-lubrication of microbearings, Journal of Kones Powertrain and Transport, Vol. 14, No. 3, pp. 603-609, 2007.
- [25] Wierzcholski, K., Asperities and deformations of hyper elastic joint cartilages in cultivation aspects, Scientific Proceedings of Applied Mechanics Department in Tech. Univ. Gliwice, pp. 469-475, 2005.
- [26] Wierzcholski, K., Hip joint lubrication after injury for stochastic description with optimum standard deviation, Acta of Bioengineering and Biomechanics, Vol. 7, No. 2, pp. 13-40, 2005.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ5-0033-0094