MICROSTRUCTURE CHARACTERIZATION OF POROUS CERAMICS VIA MINKOWSKI FUNCTIONALS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43915090" target="_blank" >RIV/60461373:22310/18:43915090 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
MICROSTRUCTURE CHARACTERIZATION OF POROUS CERAMICS VIA MINKOWSKI FUNCTIONALS
Original language description
The effective properties of porous materials depend on the porosity and all other details of the microstructure. A complete quantification of these details is not possible, but there is a systematic way towards a more comprehensive description: the Minkowski functional approach. According to a theorem from integral geometry (Hadwiger’s characterization theorem) a wide class of microstructures is completely determined by four Minkowski functionals, which are closely related to four independent global microstructural descriptors: volume fraction (porosity), surface density, mean curvature integral density (or 2D Euler characteristic) and total curvature integral density (or 3D Euler characteristic). In this contribution we show how these four descriptors and derived pore size measures (mean chord length, generalized Jeffries size) can be obtained in practice for porous ceramics via stereology-based image analysis. Using binarized images from tomographic sections, the disector probe is applied to obtain the 3D Euler characteristic. Results are discussed for porous mullite-alumina composites prepared by foaming with wheat flour and for porous alumina prepared via biological foaming with yeast.
Czech name
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Czech description
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Project
<a href="/en/project/GA15-18513S" target="_blank" >GA15-18513S: Processing and characterization of oxide and silicate ceramics with controlled microstructure and modeling of microstructure-property relations</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 12th Pacific Rim Conference on Ceramic and Glass Technology
ISBN
978-1-119-49421-8
ISSN
1042-1122
e-ISSN
neuvedeno
Number of pages
12
Pages from-to
53-64
Publisher name
American Ceramic Society (ACerS)
Place of publication
Westerville, Ohio
Event location
Waikoloa
Event date
May 21, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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