By Bikramjit Basu
This ebook is helping scholars and training scientists alike keep in mind that a complete wisdom concerning the friction and put on houses of complex fabrics is vital to additional layout and improvement of recent fabrics. With very important introductory chapters at the basics, processing, and functions of tribology, the ebook then examines intimately the character and houses of fabrics, the friction and put on of structural ceramics, bioceramics, biocomposites, and nanoceramics, in addition to light-weight composites and the friction and put on of ceramics in a cryogenic setting.
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Extra info for Tribology of Ceramics and Composites: Materials Science Perspective
Example text
For câ•›>>â•›b, a hole can be realistically imagined as a crack with crack tip radius of curvature ρ at the crack tip (see Fig. 1) given by ρ╯=╯b2/c. 1 can be rewritten as Tribology of Ceramics and Composites: A Materials Science Perspective, First Edition. Bikramjit Basu, Mitjan Kalin. © 2011 The American Ceramic Society. Published 2011 by John Wiley & Sons, Inc. 1â•… Schematic illustration showing the stress concentration at the crack tip edge. c σ max = σ 1 + 2 . 2a) From geometrical considerations, it is evident that aâ•›>>>â•›ρ, and, therefore, the maximum stress at the crack tip edge can be expressed as σ max = 2σ c .
Traditional ceramics are largely silica or clay based and typically involve low-cost fabrication processes. On the other hand, engineering ceramics are processed from high-purity ceramic powders and their properties can be tailored by varying process parameters and, thereby, microstructures. Also, engineering ceramics are, by far, more expensive than traditional ceramics. 7 To this end, this book sheds light on how various structural ceramics can be useful in tribological applications. Based on applications, engineering ceramics are usually categorized into two major classes: structural ceramics and functional ceramics.
W. Cahn, P. Haasen, and E. J. ). VCH, Weinheim, Germany, 1994, 101–114. 21â•… M. Rühle and A. G. Evans. High toughness ceramics and ceramic composites. Prog. Mater. Sci. 33 (1989), 85. 22â•… B. Basu. Zirconia–titanium boride composites for tribological applications. PhD thesis, Katholieke Universiteit Leuven, Belgium, March, 2001. 23â•… B. Basu. Toughening of Y-stabilized tetragonal zirconia ceramics. Int. Mater. Rev. 50(4) (2005), 239–256. 24â•… P. F. Becher and M. V. Swain. Grain size dependent transformation behavior in polycrystalline tetragonal zirconia ceramics.
