By Michael Scheffler, Paolo Colombo

ISBN-10: 3527313206

ISBN-13: 9783527313204

ISBN-10: 352760670X

ISBN-13: 9783527606702

Mobile ceramics are a selected category of porous fabrics including between others foams, honeycombs, attached fibers, robocast buildings and assembled hole spheres. due to their specific constitution, mobile ceramics show a wide selection of particular houses which cause them to imperative for numerous engineering functions. progressively more patents, clinical literature and overseas meetings dedicated to mobile fabrics testifies to a swiftly growing to be curiosity of the technical group during this subject. New functions for mobile ceramics are continually being placed less than improvement. The e-book, authored via top specialists during this rising box, supplies an outline of the most features with regards to the processing of numerous mobile ceramic buildings, equipment of structural and houses characterisation and good demonstrated commercial, novel and strength functions. it's an advent to newbies during this examine region and permits scholars to procure an in-depth wisdom of simple and functional features of this interesting type of complex fabrics.

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Additional resources for Cellular Ceramics: Structure, Manufacturing, Properties and Applications

Example text

His work is not matched in its thoroughness by any modern text. The books of Lawrence [2] and Mysels et al. [3], from the 1900s, are largely concerned with individual films or bubbles. The chemical industry sponsored extensive research, usually aimed at understanding the role of surfactants. The book of Bikerman [4] gives the flavor of that work. Generally speaking, the essential simplicity of Plateau’s vision was lost in this application-driven research. S. Smith [5], various physicists turned their attention to the subject in the 1980s.

01) at equilibrium. They are: . Only three films may meet at a Plateau border, and they meet at equal angles (Fig. 4a). Only four Plateau borders may meet at a junction, and they meet at equal angles (Fig. 4b). These have been proved most rigorously in ref. [14]. To these rules we can add the Laplace–Young law, which states that the pressure difference Dp across a film is proportional to its mean curvature k Dp= 4ck (1) where c is the surface tension of a single air–liquid interface: the surface tension of the film is 2c.

This step can be repeated several times to achieve the desired coating density, after which pores that have become blocked with excess slip are cleared, typically by a defined compression of the foam. When the foam has been coated appropriately, it is dried in an oven to solidify the ceramic structure, after which it is exposed to an initial thermal treatment that is designed to burn out the polymer from inside the ceramic struts as well as remove any organic additives from the ceramic slurry. Typically this involves heating the dried foam to a temperature in the range of 350–800 C, depending on the composition of the precursor polymer.

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Cellular Ceramics: Structure, Manufacturing, Properties and Applications by Michael Scheffler, Paolo Colombo

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