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Vol.3 , No. 5, Publication Date: Sep. 29, 2016, Page: 100-105
 were measured with the applied normal load ranging from 5 mN to 50 mN, for ceramic and polystyrene samples. A 1 mm diameter sapphire ball was used as a counterbody. Each test was conducted for approximately 15 minutes. Tests were repeated at least more than three times and the average values of friction force and coefficient of friction were plotted in order to ensure the reproducibility of the results. Friction-load curves suggest that, for applied normal loads in the regime of milli-Newton, two properties have a strong influence on the micro-friction, which is the adhesive force and surface energy. Also, it is shown that CoF ranging from ~0.195 (at 5 mN) to less than ~0.125 (at 50 mN) (for ceramic) and from ~0.135 (at 5 mN) to less than ~0.085 (at 50 mN) (for polystyrene) in ambient condition can be achieved. So, that means some applications at micro- and nano-scale size can live over a longer period of time and increase their tolerances.&picture=http://www.aascit.org/aascit/decorators/img/journal/896.jpg)
| [1] | Mohammad S. Alsoufi, Mechanical Engineering Department, College of Engineering and Islamic Architecture, Umm Al-Qura University, Makkah, KSA. |
In this paper, motivated by macro- as well as micro-systems applications, micro-scale friction properties tests were performed using a ball-on-flat arrangement under sliding precision motion. Friction force, Ff, and coefficient of friction (CoF) were measured with the applied normal load ranging from 5 mN to 50 mN, for ceramic and polystyrene samples. A 1 mm diameter sapphire ball was used as a counterbody. Each test was conducted for approximately 15 minutes. Tests were repeated at least more than three times and the average values of friction force and coefficient of friction were plotted in order to ensure the reproducibility of the results. Friction-load curves suggest that, for applied normal loads in the regime of milli-Newton, two properties have a strong influence on the micro-friction, which is the adhesive force and surface energy. Also, it is shown that CoF ranging from ~0.195 (at 5 mN) to less than ~0.125 (at 50 mN) (for ceramic) and from ~0.135 (at 5 mN) to less than ~0.085 (at 50 mN) (for polystyrene) in ambient condition can be achieved. So, that means some applications at micro- and nano-scale size can live over a longer period of time and increase their tolerances.
Keywords
Small-Scale, Ball-on-Flat, Friction Force, Coefficient of Friction (CoF)
Reference
| [01] | Hsu, S., C. Ying, and F. Zhao, The nature of friction: A critical assessment. Friction, 2014. 2 (1): p. 1-26. |
| [02] | Broitman, E., The nature of the frictional force at the macro-, micro-, and nano-scales. Friction, 2014. 2 (1): p. 40-46. |
| [03] | Bhushan, B., Nanotribology and nanomechanics of MEMS/NEMS and BioMEMS/BioNEMS materials and devices. Microelectronic Engineering, 2007. 84 (3): p. 387-412. |
| [04] | Williams, J. A., Friction and wear of rotating pivots in MEMS and other small scale devices. Wear, 2001. 251 (1–12): p. 965-972. |
| [05] | Guo, Zhanshe, Meng, Yonggang, Wu, Hao, Su, Caijun and Wen, Shizhu, Measurement of static and dynamic friction coefficients of sidewalls of bulk-microfabricated MEMS devices with an on-chip micro-tribotester. Sensors and Actuators A: Physical, 2007. 135 (2): p. 863-869. |
| [06] | Nosonovsky, M. and B. Bhushan, Multiscale friction mechanisms and hierarchical surfaces in nano- and bio-tribology. Materials Science and Engineering: R: Reports, 2007. 58 (3–5): p. 162-193. |
| [07] | Srivastava, A., K. J. Astrom, and K. L. Turner, Experimental Characterization of Micro-Friction on a Mica Surface Using the Lateral Motion and Force Measurement Capability of an Instrumented Indenter. Tribology Letters, 2007. 27 (3): p. 315-322. |
| [08] | Urbakh, M. and E. Meyer, Nanotribology: The renaissance of friction. Nat Mater, 2010. 9 (1): p. 8-10. |
| [09] | Wang, Weiyuan, Wang, Yuelin, Bao, Haifei, Xiong, Bin and Bao, Minhang, Friction and wear properties in MEMS. Sensors and Actuators A: Physical, 2002. 97–98: p. 486-491. |
| [10] | Corwin, A. D. and M. P. de Boer, Effect of adhesion on dynamic and static friction in surface micromachining. Applied Physics Letters, 2004. 84 (13): p. 2451-2453. |
| [11] | Nikhil, S. T. and B. Bharat, Friction model for the velocity dependence of nanoscale friction. Nanotechnology, 2005. 16 (10): p. 2309. |
| [12] | Yunus, M. and M. S. Alsoufi, Multi-output optimization of tribological characteristics control factors of thermally sprayed industrial ceramic coatings using hybrid Taguchi-grey relation analysis. Friction, 2016: p. 208-216. |
| [13] | Bucknall C. B. In: Haward R. N., Y. R. J., editors., The Physics of Glassy Polymers 1997, London: Chapman and Hall. p. 363. Chapter 8. |
| [14] | Michler, G. H., Kunststoff-Mikromechanik: Morphologie, Deformations- und Bruchmechanismen von polymeren Werkstoffen 1992, Munchen: Carl Hanser. |
| [15] | Yunus, M. and M. S. Alsoufi, Multi-Objective Optimization of Joint Strength of Dissimilar Aluminum Alloys Formed by Friction Stir Welding Using Taguchi-Grey Relation Analysis International Journal of Engineering & Technology IJET-IJENS, 2016. 16 (04): p. 10-17. |
| [16] | Takadoum, J., Materials and Surface Engineering in Tribology. 1st ed 2008, USA: John Wiley & Sons. 242. |
| [17] | Alsoufi, M. S., Tactile Perception of Passenger Vehicle Interior Polymer Surfaces: An Investigation using Fingertip Blind Observations and Friction Properties. International Journal of Science and Research (IJSR), 2016. 5 (5): p. 1447-1454. |
| [18] | Achanta, S., D. Drees, and J.-P. Celis, Friction from nano to macroforce scales analyzed by single and multiple-asperity contact approaches. Surface and Coatings Technology, 2008. 202 (24): p. 6127-6135. |
| [19] | Liu, E., Ding, Y. F., Li, L., Blanpain, B. and Celis, J. P., Influence of humidity on the friction of diamond and diamond-like carbon materials. Tribology International, 2007. 40 (2): p. 216-219. |
| [20] | Barriga, J., Fernández-Diaz, B., Juarros, A., Ahmed, S. I. U. and Arana, J. L., Microtribological analysis of gold and copper contacts. Tribology International, 2007. 40 (10–12): p. 1526-1530. |
| [21] | Achanta, S., Drees, D., Celis, J. and Anderson, M., Investigation of Friction in the Meso Normal Force Range on DLC and TiN Coatings. Journal of ASTM International, 2007. 4 (8): p. 1-12. |
| [22] | Myshkin, N. K., M. I. Petrokovets, and A. V. Kovalev, Tribology of polymers: Adhesion, friction, wear, and mass-transfer. Tribology International, 2005. 38 (11–12): p. 910-921. |
| [23] | Carpick, R. W., D. Y. Sasaki, and A. R. Burns, Large friction anisotropy of a polydiacetylene monolayer. Tribology Letters, 1999. 7 (2): p. 79-85. |
| [24] | Ando, Y., Y. Ishikawa, and T. Kitahara, Friction Characteristics and Adhesion Force Under Low Normal Load. Journal of Tribology, 1995. 117 (4): p. 569-574. |
| [25] | Skinner, J. and N. Gane, Sliding friction under a negative load. Journal of Physics D: Applied Physics, 1972. 5 (11): p. 2087. |
| [26] | Yoon, Eui-Sung, Yang, Seung Ho, Han, Hung-Gu and Kong, Hosung, An experimental study on the adhesion at a nano-contact. Wear, 2003. 254 (10): p. 974-980. |
| [27] | Yoon, Eui-Sung, Yang, Seung Ho, Kong, Hosung and Kim, Ki-Hwan, The Effect of Topography on Water Wetting and Micro/Nano Tribological Characteristics of Polymeric Surfaces. Tribology Letters, 2003. 15 (2): p. 145-154. |
| [28] | Scherge, M. and S. N. Gorb, Biological Micro- and Nanotribology. 1 ed 2001, Berlin: Springer-Verlag Berlin Heidelberg. XIII, 306. |
| [29] | Landman, U., W. D. Luedtke, and E. M. Ringer, Atomistic mechanisms of adhesive contact formation and interfacial processes. Wear, 1992. 153 (1): p. 3-30. |
| [30] | Kragelskii, I. V., Friction and Wear 1982, Elmsford: Pergamon Press. |
| [31] | Rees, B. L., Static friction of bulk polymer over a temperature range. Research 1957. 10: p. 331-338. |
| [32] | Schallamach, A., The Load Dependence of Rubber Friction. Proceedings of the Physical Society. Section B, 1952. 65 (9): p. 657. |
| [33] | Gardner, J. W. and P. N. Bartlett, Application of conducting polymer technology in microsystems. Sensors and Actuators A: Physical, 1995. 51 (1): p. 57-66. |
| [34] | Singer, I. L., Bolster, R. N., Wegand, J., Fayeulle, S. and Stupp, B. C., Hertzian stress contribution to low friction behavior of thin MoS2 coatings. Applied Physics Letters, 1990. 57 (10): p. 995-997. |
