TY - JOUR
T1 - Study of phase transitions and properties of tetragonal (Pb,La)(Zr,Ti)O3 ceramics-I
T2 - Phase diagram and β-phase
AU - Stenger, C.G.F.
AU - Burggraaf, A.J.
PY - 1980
Y1 - 1980
N2 - The phase diagram (T-x plot) of thermally depoled tetragonal PLZT materials has been investigated by means of X-ray diffraction, Capacitance and DSC measurements. Materials with a low La content show a classical Fet↔PEc transition. This transition has first or second order character, dependent on the Zr/Ti ratio. Materials with a medium and high La content show a diffuse transition from the cubic high temperature phase to a tetragonal, so called β phase. This β phase has no clear FE properties and a spontaneous transition to the FEt phase on lowering the temperature only takes place for materials with a medium La content. For materials with a high La content a spontaneous βt→ FEt transition is not observed.
AB - The phase diagram (T-x plot) of thermally depoled tetragonal PLZT materials has been investigated by means of X-ray diffraction, Capacitance and DSC measurements. Materials with a low La content show a classical Fet↔PEc transition. This transition has first or second order character, dependent on the Zr/Ti ratio. Materials with a medium and high La content show a diffuse transition from the cubic high temperature phase to a tetragonal, so called β phase. This β phase has no clear FE properties and a spontaneous transition to the FEt phase on lowering the temperature only takes place for materials with a medium La content. For materials with a high La content a spontaneous βt→ FEt transition is not observed.
KW - Ceramics
UR - http://www.scopus.com/inward/record.url?scp=0018923944&partnerID=8YFLogxK
U2 - 10.1016/0022-3697(80)90114-6
DO - 10.1016/0022-3697(80)90114-6
M3 - Article
AN - SCOPUS:0018923944
VL - 41
SP - 17
EP - 23
JO - Journal of physics and chemistry of solids
JF - Journal of physics and chemistry of solids
SN - 0022-3697
IS - 1
ER -