By Michael Nosonovsky, Pradeep K. Rohatgi
Biomimetics in fabrics Science presents a complete theoretical and sensible assessment of biomimetic fabrics with self-healing, self-lubricating and self-cleaning homes. those 3 themes are heavily comparable and represent swiftly constructing components of analysis. the sector of self-healing fabrics calls for a brand new conceptual knowing of this biomimetic know-how, that is unlike conventional engineering methods reminiscent of put on and fatigue. Biomimetics in fabrics Science is the 1st monograph to be dedicated to those fabrics. a brand new theoretical framework for those tactics is gifted in line with the idea that of multi-scale constitution of entropy and non-equilibrium thermodynamics, including a close evaluation of the to be had expertise. The latter comprises experimental, modeling, and simulation effects bought on self-healing/lubricating/cleaning fabrics in view that their emergence some time past decade.
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Additional info for Biomimetics in Materials Science: Self-Healing, Self-Lubricating, and Self-Cleaning Materials
Sample text
For the granular flow when the interaction between the grains of the material is governed by the dry friction law). The case of wear is different; although wear is almost as universal as friction, it is rarely considered an inherent part of models of mechanical contact. Instead, there are several phenomenological models of wear, the most popular of which is the Archard’s law, which states that the volume of the worn material is proportional to the sliding distance, normal load, and a coefficient called “the wear coefficient,” divided by hardness of a softer material in contact.
However, metallic self-healing alloys and composites are of great practical importance. We review the design principles of self-healing materials using the nonequilibrium thermodynamics approach and the concept of hierarchical organization. The generalized thermodynamic force that leads to healing is induced by bringing the system away from thermodynamic equilibrium. We focus on the three major methods of imparting the ability for self-healing in metallic systems: precipitation-induced healing, embedding shape-memory alloys, and embedding a low-melting point alloy in the alloy matrix.
1998; Nakao et al. 2006). This composite exhibited the self-healing behavior but it suffered from a significant (10–40%) loss of stiffness compared with standard concrete due to the fibers. 1 Introduction 27 situation, when a compromise between self-healing and mechanical properties should be sought. In another project involving self-healing ceramics, researchers have studied the crack-healing behavior and mechanical properties of a mullite composite toughened by the inclusion of 15% (by volume) SiC whiskers (Nakao et al.