Investigation of porous ceramic using image analysis of fractured surface roughness

A. S. Buyakov, Yu A. Zenkina, S. N. Kulkov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, the surface roughness of a porous ceramic composite material based on zirconium and magnesium oxides using the method of image analysis were studied. As the study materials ceramics of the ZrO2-MgO system in a wide range of component concentrations were selected. Ceramic samples had a developed, bimodal pore structure, formed due to the presence of voids between the ceramic powder particles and the introduction of pore-forming organic particles in the initial powder mixtures. Samples were sintered at different isothermal exposure time, from 10 to 600 min. The roughness was determined as the ratio of the surface section line length to the length of its projection on the images of fracture surface of ceramic samples obtained using a scanning electron microscope and a laser profilometer. The roughness value determined using a scanning electron microscope and using a laser profilometer was different, but their dependences on the sintering duration and composition were similar. It was found that dependence of the roughness on the composition and sintering duration, constructed in three-dimensional coordinates, makes it possible to distinguish the stages of solid-phase sintering of porous ceramics of the studied system. It was shown that roughness correlates with the average grain size and pores that change during isothermal exposure due to growth grains, volumetric shrinkage, leading to a decrease in the size of macropores, and an increase in micropores, due to their coalescence.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology
EditorsVictor E. Panin, Vasily M. Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440463
DOIs
Publication statusPublished - 14 Dec 2020
Externally publishedYes
EventInternational Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020 - Tomsk, Russian Federation
Duration: 5 Oct 20209 Oct 2020

Publication series

NameAIP Conference Proceedings
Volume2310
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020
CountryRussian Federation
CityTomsk
Period5.10.209.10.20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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