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Evolution of Pores and Tortuosity During Sintering
Author(s) -
Hu Zhihao,
Lu Kathy
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.13080
Subject(s) - sintering , tortuosity , microstructure , materials science , porosity , volume fraction , composite material , mineralogy , geology
Pores play an important role in sintering densification. In this study, 3D microstructure reconstruction has been used to quantitatively evaluate pore evolution during sintering. Pore shape, distribution, and connectivity are displayed in 3D based on actual microstructure data and show drastic differences from the conventional description of pores. Pore volume fraction and pore number density are extracted from the 3D microstructure reconstruction and compared. Pore size distribution frequency with sintering time is obtained. New tortuosity concept is provided to properly represent pore shape changes during sintering.