TY - JOUR
T1 - Templated grain growth of barium titanate single crystals
AU - Rehrig, Paul W.
AU - Messing, Gary L.
AU - Trolier-McKinstry, Susan
PY - 2000
Y1 - 2000
N2 - BaTiO3 single crystals were grown via templated grain growth (TGG), which is a process in which a single-crystal `template' is placed in contact with a sintered polycrystalline matrix and then heated to migrate the single-crystal boundary into the matrix. Millimeter-sized, stoichiometric single crystals of BaTiO3 were produced by heating polycrystalline matrix with a relative density of 97% and a Ba/Ti ratio of <1.00, which was bonded to a BaTiO3 single crystal, at temperatures above the eutectic temperature. Growth rates of 590-790, 180-350, and 42-59 μm/h were observed for {111}-, {100}-, and {110}-oriented single-crystal templates, respectively. Lower-surface-energy facets were formed for {111}- and {100}-oriented templates, whereas {110} crystals maintained a {110} growth front, which indicated that this plane orientation was the lowest-energy surface in this system. SrTiO3 also was shown to be a suitable substrate for TGG of BaTiO3.
AB - BaTiO3 single crystals were grown via templated grain growth (TGG), which is a process in which a single-crystal `template' is placed in contact with a sintered polycrystalline matrix and then heated to migrate the single-crystal boundary into the matrix. Millimeter-sized, stoichiometric single crystals of BaTiO3 were produced by heating polycrystalline matrix with a relative density of 97% and a Ba/Ti ratio of <1.00, which was bonded to a BaTiO3 single crystal, at temperatures above the eutectic temperature. Growth rates of 590-790, 180-350, and 42-59 μm/h were observed for {111}-, {100}-, and {110}-oriented single-crystal templates, respectively. Lower-surface-energy facets were formed for {111}- and {100}-oriented templates, whereas {110} crystals maintained a {110} growth front, which indicated that this plane orientation was the lowest-energy surface in this system. SrTiO3 also was shown to be a suitable substrate for TGG of BaTiO3.
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U2 - 10.1111/j.1151-2916.2000.tb01610.x
DO - 10.1111/j.1151-2916.2000.tb01610.x
M3 - Article
AN - SCOPUS:0034321157
SN - 0002-7820
VL - 83
SP - 2654
EP - 2660
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 11
ER -