Rheological Properties of Aircraft Grease Containing Nano-Additives

Abstract:

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The apparent viscosity of aircraft grease with different nano-particles content, temperature and shear rates were studied using a rotational viscometer. The rheological properties of two types of aircraft grease, the basic grease and the one with nano-particles additives, were investigated using a rheometer. The results indicated that the apparent viscosity increases with the increase of nanoparticle concentration with the given ratio of nano-particles added. It was also found that the grease with and without the nano-particles both have yield stresses and clear shear-thinning properties. The shear-thinning phenomenon of the grease containing nano-particles is more evident than that of the basic grease. The experimental results also reveal that the rheological characteristics of both types of grease fall in Herschel-Bulkley class, and the nano-particles have a significant influence on the rheological parameters. At the end, the rheology mechanism was discussed based on the entanglement and orientation theories.

Info:

Periodical:

Key Engineering Materials (Volumes 419-420)

Edited by:

Daizhong Su, Qingbin Zhang and Shifan Zhu

Pages:

53-56

DOI:

10.4028/www.scientific.net/KEM.419-420.53

Citation:

B. Y. Song et al., "Rheological Properties of Aircraft Grease Containing Nano-Additives", Key Engineering Materials, Vols. 419-420, pp. 53-56, 2010

Online since:

October 2009

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Price:

$35.00

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