Room temperature structure of Pb(ZrxTi1−xO3) around the morphotropic phase boundary region: A Rietveld study

2002 ◽  
Vol 92 (6) ◽  
pp. 3266-3274 ◽  
Author(s):  
Ragini ◽  
Rajeev Ranjan ◽  
S. K. Mishra ◽  
Dhananjai Pandey
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Room Temperature ◽  
Boundary Region ◽  
Temperature Structure

Phase Diagram of the W-doped Pb(Zn1/3Nb2/3)O3–BaTiO3– PbTiO3 System Around a Morphotropic Phase Boundary Composition

2002 ◽  
Vol 17 (5) ◽  
pp. 1085-1091 ◽  
Author(s):  
W. Z. Zhu ◽  
M. Yan ◽  
A. L. Kholkin ◽  
P. Q. Mantas ◽  
J. L. Baptista
Keyword(s):  
High Temperature ◽  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Room Temperature ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electrical Neutrality ◽  
Phase Boundary Composition ◽  
A Site ◽  
Successive Phase

The morphotropic phase boundary (MPB) composition that is characterized by the coexistence of rhombohedral and tetragonal phases in the Pb(Zn1/3Nb2/3)O3–BaTiO3– PbTiO3 system was modified by W-doping at the B site of a perovskite structural block. To maintain the electrical neutrality, creation of A-site vacancies was intentionally introduced in the formulation of the examined compositions. Incorporation of W ions was revealed to stabilize the tetragonal phase against the rhombohedral one, shifting the MPB toward the PZN-rich end at room temperature. High-temperature x-ray diffraction examination in combination with dielectric measurements discloses two successive phase transitions as a sample is cooled from high temperature, namely, paraelectric cubic to ferroelectric rhombohedral followed by ferroelectric rhombohedral to ferroelectric tetragonal. W addition appears to suppress the first transition while promoting the second one.

scholarly journals Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3 piezoceramics at the morphotropic phase boundary region

2017 ◽  
Vol 690 ◽  
pp. 568-574 ◽  
Author(s):  
Rodrigo Machado ◽  
Valdeci B. dos Santos ◽  
Diego A. Ochoa ◽  
Elena Cerdeiras ◽  
Lourdes Mestres ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Boundary Region ◽  
Electromechanical Properties ◽  
Elastic Dielectric

Enrichment of piezoelectric properties in Nb5+doped (0.94) (Na0.5Bi0.5)TiO3–(0.06) BaTiO3 ceramics across morphotropic phase boundary region

2021 ◽  
Vol 32 (19) ◽  
pp. 24115-24124
Author(s):  
K. Sudhakar ◽  
M. William Carry ◽  
A. Logeswari ◽  
S. Vinoth Rathan ◽  
Muthu Senthil Pandian ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Piezoelectric Properties ◽  
Boundary Region
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