Direct foaming techniques for the preparation of cellular ceramics, their microstructural characterization and property-porosity relations - a review

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43901960" target="_blank" >RIV/60461373:22310/16:43901960 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Direct foaming techniques for the preparation of cellular ceramics, their microstructural characterization and property-porosity relations - a review

Popis výsledku v původním jazyce

Highly porous ceramics, typically containing more than 70 % porosity, are called ceramic foams or cellular ceramics. Although the early beginnings of cellular ceramics can be traced back for more than five decades (early 1960s), the applications of porous and cellular ceramics have seen an unprecedented growth during the last two or three decades (from the late 1980s and the early 1990s), resulting in an immense increase of research efforts and papers in the field. Among the many preparation techniques for cellular ceramics direct foaming techniques play a prominent role today, because they offer viable routes for avoiding the problem of hollow struts and low strength, which is the main issues for cellular ceramics prepared by polymer foam replication techniques. This paper reviews direct foaming techniques used for the preparation of cellular ceramics. Based on our distinction of "in-situ" and "ex-situ" direct foaming techniques, an structured shortcut through the current literature is given, with a focus on the most recent advances in both processing variants, including our recently developed techniques of foaming using wheat flour and biological foaming with yeast, for which latest achievements are discussed. Apart from the processing techniques, which are reviewed in some detail, the most important issues concerning the microstructural characterization and property-porosity relations of cellular ceramics are summarized and discussed with respect to cellular ceramics. The chapter closes with a critical discussion of Gibson-Ashby relations for the elastic properties, thermal conductivity and mechanical strength of cellular ceramics (open- and closed-cell foams), with a special focus on experimental compressive strength data reported in the literature.

Název v anglickém jazyce

Direct foaming techniques for the preparation of cellular ceramics, their microstructural characterization and property-porosity relations - a review

Popis výsledku anglicky

Highly porous ceramics, typically containing more than 70 % porosity, are called ceramic foams or cellular ceramics. Although the early beginnings of cellular ceramics can be traced back for more than five decades (early 1960s), the applications of porous and cellular ceramics have seen an unprecedented growth during the last two or three decades (from the late 1980s and the early 1990s), resulting in an immense increase of research efforts and papers in the field. Among the many preparation techniques for cellular ceramics direct foaming techniques play a prominent role today, because they offer viable routes for avoiding the problem of hollow struts and low strength, which is the main issues for cellular ceramics prepared by polymer foam replication techniques. This paper reviews direct foaming techniques used for the preparation of cellular ceramics. Based on our distinction of "in-situ" and "ex-situ" direct foaming techniques, an structured shortcut through the current literature is given, with a focus on the most recent advances in both processing variants, including our recently developed techniques of foaming using wheat flour and biological foaming with yeast, for which latest achievements are discussed. Apart from the processing techniques, which are reviewed in some detail, the most important issues concerning the microstructural characterization and property-porosity relations of cellular ceramics are summarized and discussed with respect to cellular ceramics. The chapter closes with a critical discussion of Gibson-Ashby relations for the elastic properties, thermal conductivity and mechanical strength of cellular ceramics (open- and closed-cell foams), with a special focus on experimental compressive strength data reported in the literature.

Druh

C - Kapitola v odborné knize

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F12%2F1170" target="_blank" >GAP108/12/1170: Porézní keramika s řízenou elasticitou a tepelnou vodivostí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Advances in Porous Ceramics

ISBN

978-1-63485-839-7

Počet stran výsledku

32

Strana od-do

127-158

Počet stran knihy

188

Název nakladatele

Nova Science Publishers

Místo vydání

New York

Kód UT WoS kapitoly

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