TY - GEN
T1 - Investigation of porous ceramic using image analysis of fractured surface roughness
AU - Buyakov, A. S.
AU - Zenkina, Yu A.
AU - Kulkov, S. N.
N1 - Funding Information:
This work was carried out as part of the state assignment of the ISPMS SB RAS, project III.23.2.3.
Publisher Copyright:
© 2020 American Institute of Physics Inc.. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12/14
Y1 - 2020/12/14
N2 - 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.
AB - 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.
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U2 - 10.1063/5.0034069
DO - 10.1063/5.0034069
M3 - Conference contribution
AN - SCOPUS:85098011912
T3 - AIP Conference Proceedings
BT - Proceedings of the International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology
A2 - Panin, Victor E.
A2 - Fomin, Vasily M.
PB - American Institute of Physics Inc.
T2 - International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020
Y2 - 5 October 2020 through 9 October 2020
ER -