Grain Boundary Issues in Porous Structural Ceramics

Manuel E. Brito

doi:10.1002/9780470294703.ch26

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Grain Boundary Issues in Porous Structural Ceramics

Manuel E. Brito

Year: 2008 Ceramic engineering and science proceedings Pages: 209-216 Publisher: Wiley

DOI: 10.1002/9780470294703.ch26

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Abstract

The microstructure of porous alumina and porous silicon nitride is analyzed by STEM and EDS techniques, and compared to microstructures of respective dense materials. No appreciable segregation of inherent impurities towards boundaries was observed in porous alumina. As for silicon nitride, EDS elemental maps show the presence of the amorphous phase elements along the pores surface and an unusually thick intergranular amorphous layer.

Keywords:

Materials science Microstructure Amorphous solid Porosity Grain boundary Intergranular corrosion Silicon nitride Ceramic Porous silicon Impurity Nitride Composite material Metallurgy Silicon Layer (electronics) Chemical engineering Mineralogy Crystallography Chemistry

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Advanced ceramic materials synthesis

Physical Sciences → Materials Science → Ceramics and Composites

Semiconductor materials and devices

Physical Sciences → Engineering → Electrical and Electronic Engineering

Aluminum Alloys Composites Properties

Physical Sciences → Engineering → Mechanical Engineering

Grain Boundary Issues in Porous Structural Ceramics

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