Premium
Effect of Grain Coalescence on the Abnormal Grain Growth of Pb(Mg 1/3 Nb 2/3 )O 3 ‐35 mol% PbTiO 3 Ceramics
Author(s) -
Chung UiJin,
Park JongKeuk,
Hwang gMoon,
Lee HoYong,
Kim DohYeon
Publication year - 2002
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.1151-2916.2002.tb00200.x
Subject(s) - grain growth , grain boundary , materials science , coalescence (physics) , analytical chemistry (journal) , mineralogy , grain size , ceramic , crystallography , microstructure , metallurgy , chemistry , physics , chromatography , astrobiology
Abnormal grain growth (AGG), which occurred during the heat treatment of Pb(Mg 1/3 Nb 2/3 )O 3 ‐35 mol% PbTiO 3 (PMN‐35PT) with excess PbO, was investigated. AGG has been suggested to be the consequence of grain coalescence that results in the formation of Σ3 coincidence site lattice and low angle grain boundaries. Because of reentrant edges appearing at the ends of these boundaries, the coarsening rate of grains was significantly enhanced and AGG occurred.