Application of shape memory materials in fluid sealing technology

Włodzimierz Ochoński (Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Kraków, Poland)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Publication date: 9 March 2010



The purpose of this paper is to present short characteristics of shape memory alloys (SMA) and shape memory polymers (SMP) and some examples of application of these materials in industrial sealing technology.


In this paper, short characteristic of shape memory materials and design examples of applying them in industrial sealing technology such as: tube coupling in hydraulic systems, flanged pipe connections, lip radial seal, mechanical face seal, soft gland packing, magnetic fluid seal, and in bearing seal system for drill bit, are given.


The paper provides information about innovative fluid seal designs based on particular properties of the shape memory materials, applied in stationary joints, and rotary equipments. These new solutions provide often to simplify seal design, their miniaturization, increase of tightness, and reduction of operating costs.


This paper offers some new fluid seal designs based on the shape memory materials and their practical application in industrial sealing technology.



Ochoński, W. (2010), "Application of shape memory materials in fluid sealing technology", Industrial Lubrication and Tribology, Vol. 62 No. 2, pp. 99-110.

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