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Direct Study of the Behavior of Flaw‐Forming Defect in Sintering
Author(s) -
Uematsu Keizo,
Miyashita Masayori,
Kim JinYoung,
Uchida Nozomu
Publication year - 1992
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/j.1151-2916.1992.tb04178.x
Subject(s) - porosimetry , sintering , materials science , immersion (mathematics) , composite material , optical microscope , porosity , mercury intrusion porosimetry , green body , microstructure , scanning electron microscope , mineralogy , porous medium , chemistry , mathematics , pure mathematics
The morphological change of natural pores with densification was examined in an alumina green body. The liquid‐immersion technique was used for observing pores inside the body before and after sintering. In this technique the specimen is made transparent by an adequate immersion liquid and observed with a transmission optical microscope. Growth of large pores with densification was observed and is discussed along with past thermodynamic consideration of pore growth. Supplemental investigation of the results was conducted by SEM and mercury porosimetry.