Microstructure-permeability relation of porous β-Si3N4 ceramics

Gülsüm Topates; Lars Mammitzsch; Uwe Petasch; Joerg Adler; Ferhat Kara; Hasan Mandal

doi:10.1016/j.jeurceramsoc.2012.12.022

Microstructure-permeability relation of porous β-Si₃N₄ ceramics

Gülsüm Topates^*, Lars Mammitzsch, Uwe Petasch, Joerg Adler, Ferhat Kara, Hasan Mandal

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Porous β-Si₃N₄ ceramics with two distinct structures were produced by using two different Si₃N₄ sources to investigate the relationship between microstructure and permeability. Results showed that regardless of pore amount, size of pore channels, shape-distribution of β-Si₃N₄ grains are more effective on permeability of porous Si₃N₄ ceramics. Higher permeability and lower contribution of inertial forces was obtained by microstructure consists of coarse and equiaxed grains even at lower porosity amount. Calculated Forchheimer number (F_o) and measured the local breadth of a pore also supported the effect of microstructure on permeability.

Original language	English
Pages (from-to)	1545-1551
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	33
Issue number	9
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2012.12.022
Publication status	Published - Aug 2013
Externally published	Yes

Keywords

Microstructure
Permeability
Porosity
SiN
Structural applications

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10.1016/j.jeurceramsoc.2012.12.022

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title = "Microstructure-permeability relation of porous β-Si3N4 ceramics",

abstract = "Porous β-Si3N4 ceramics with two distinct structures were produced by using two different Si3N4 sources to investigate the relationship between microstructure and permeability. Results showed that regardless of pore amount, size of pore channels, shape-distribution of β-Si3N4 grains are more effective on permeability of porous Si3N4 ceramics. Higher permeability and lower contribution of inertial forces was obtained by microstructure consists of coarse and equiaxed grains even at lower porosity amount. Calculated Forchheimer number (Fo) and measured the local breadth of a pore also supported the effect of microstructure on permeability.",

keywords = "Microstructure, Permeability, Porosity, SiN, Structural applications",

author = "G{\"u}ls{\"u}m Topates and Lars Mammitzsch and Uwe Petasch and Joerg Adler and Ferhat Kara and Hasan Mandal",

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T1 - Microstructure-permeability relation of porous β-Si3N4 ceramics

AU - Topates, Gülsüm

AU - Mammitzsch, Lars

AU - Petasch, Uwe

AU - Adler, Joerg

AU - Kara, Ferhat

AU - Mandal, Hasan

PY - 2013/8

Y1 - 2013/8

N2 - Porous β-Si3N4 ceramics with two distinct structures were produced by using two different Si3N4 sources to investigate the relationship between microstructure and permeability. Results showed that regardless of pore amount, size of pore channels, shape-distribution of β-Si3N4 grains are more effective on permeability of porous Si3N4 ceramics. Higher permeability and lower contribution of inertial forces was obtained by microstructure consists of coarse and equiaxed grains even at lower porosity amount. Calculated Forchheimer number (Fo) and measured the local breadth of a pore also supported the effect of microstructure on permeability.

AB - Porous β-Si3N4 ceramics with two distinct structures were produced by using two different Si3N4 sources to investigate the relationship between microstructure and permeability. Results showed that regardless of pore amount, size of pore channels, shape-distribution of β-Si3N4 grains are more effective on permeability of porous Si3N4 ceramics. Higher permeability and lower contribution of inertial forces was obtained by microstructure consists of coarse and equiaxed grains even at lower porosity amount. Calculated Forchheimer number (Fo) and measured the local breadth of a pore also supported the effect of microstructure on permeability.

KW - Microstructure

KW - Permeability

KW - Porosity

KW - SiN

KW - Structural applications

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DO - 10.1016/j.jeurceramsoc.2012.12.022

M3 - Article

AN - SCOPUS:84875945858

SN - 0955-2219

VL - 33

SP - 1545

EP - 1551

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 9

ER -

Microstructure-permeability relation of porous β-Si₃N₄ ceramics

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Keywords

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