Abstract
Microstructures of ordered Ba(Cd 1/3Ta 2/3)O 3 perovskite dielectric ceramics with and without a boron additive have been observed by atomic resolution transmission electron microscopy (TEM). The selected area electron diffraction and lattice image show a well-ordered structure with hexagonal symmetry (lattice constants of a∼5.8 Å and c∼7.1 Å) in the ordered Ba(Cd 1/3Ta 2/3)O 3 with a boron additive, which is similar to those in ordered Ba(Zn 1/3Ta 2/3)O 3 and Ba(Mg 1/3Ta 2/3)O 3 ceramics. Ordered domains with a twin crystallographic relationship and high-density domain interfaces induced by ordering were observed in the ordered Ba(Cd 1/3Ta 2/3)O 3 without a boron additive sintered at a relatively high temperature. Atomic resolution TEM further revealed the conservative twin boundaries along (001) and (110) planes and non-conservative antiphase boundaries with a projected displacement vector of the type [001] in the ordered Ba(Cd 1/3Ta 2/3)O 3 without a boron additive. Finally, the energetics of different domain interfaces are discussed with the interfacial structures in ordered Ba(Cd 1/3Ta 2/3)O 3 ceramics revealed by an electron microscope.
Original language | English (US) |
---|---|
Pages (from-to) | 1047-1052 |
Number of pages | 6 |
Journal | Journal of the American Ceramic Society |
Volume | 89 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2006 |
Fingerprint
ASJC Scopus subject areas
- Ceramics and Composites
Cite this
Atomic resolution transmission electron microscopy of the microstructure of ordered Ba(Cd 1/3Ta 2/3)O 3 perovskite ceramics. / Sun, J.; Liu, Shaojun; Newman, Nathan; Smith, David.
In: Journal of the American Ceramic Society, Vol. 89, No. 3, 03.2006, p. 1047-1052.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Atomic resolution transmission electron microscopy of the microstructure of ordered Ba(Cd 1/3Ta 2/3)O 3 perovskite ceramics
AU - Sun, J.
AU - Liu, Shaojun
AU - Newman, Nathan
AU - Smith, David
PY - 2006/3
Y1 - 2006/3
N2 - Microstructures of ordered Ba(Cd 1/3Ta 2/3)O 3 perovskite dielectric ceramics with and without a boron additive have been observed by atomic resolution transmission electron microscopy (TEM). The selected area electron diffraction and lattice image show a well-ordered structure with hexagonal symmetry (lattice constants of a∼5.8 Å and c∼7.1 Å) in the ordered Ba(Cd 1/3Ta 2/3)O 3 with a boron additive, which is similar to those in ordered Ba(Zn 1/3Ta 2/3)O 3 and Ba(Mg 1/3Ta 2/3)O 3 ceramics. Ordered domains with a twin crystallographic relationship and high-density domain interfaces induced by ordering were observed in the ordered Ba(Cd 1/3Ta 2/3)O 3 without a boron additive sintered at a relatively high temperature. Atomic resolution TEM further revealed the conservative twin boundaries along (001) and (110) planes and non-conservative antiphase boundaries with a projected displacement vector of the type [001] in the ordered Ba(Cd 1/3Ta 2/3)O 3 without a boron additive. Finally, the energetics of different domain interfaces are discussed with the interfacial structures in ordered Ba(Cd 1/3Ta 2/3)O 3 ceramics revealed by an electron microscope.
AB - Microstructures of ordered Ba(Cd 1/3Ta 2/3)O 3 perovskite dielectric ceramics with and without a boron additive have been observed by atomic resolution transmission electron microscopy (TEM). The selected area electron diffraction and lattice image show a well-ordered structure with hexagonal symmetry (lattice constants of a∼5.8 Å and c∼7.1 Å) in the ordered Ba(Cd 1/3Ta 2/3)O 3 with a boron additive, which is similar to those in ordered Ba(Zn 1/3Ta 2/3)O 3 and Ba(Mg 1/3Ta 2/3)O 3 ceramics. Ordered domains with a twin crystallographic relationship and high-density domain interfaces induced by ordering were observed in the ordered Ba(Cd 1/3Ta 2/3)O 3 without a boron additive sintered at a relatively high temperature. Atomic resolution TEM further revealed the conservative twin boundaries along (001) and (110) planes and non-conservative antiphase boundaries with a projected displacement vector of the type [001] in the ordered Ba(Cd 1/3Ta 2/3)O 3 without a boron additive. Finally, the energetics of different domain interfaces are discussed with the interfacial structures in ordered Ba(Cd 1/3Ta 2/3)O 3 ceramics revealed by an electron microscope.
UR - http://www.scopus.com/inward/record.url?scp=33644680926&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33644680926&partnerID=8YFLogxK
U2 - 10.1111/j.1551-2916.2005.00800.x
DO - 10.1111/j.1551-2916.2005.00800.x
M3 - Article
AN - SCOPUS:33644680926
VL - 89
SP - 1047
EP - 1052
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 3
ER -