Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 521-528 |
| Journal | Materials research bulletin |
| Volume | 10 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1975 |
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Effects of microstructure on the dielectric properties of lanthana substituted PbTiO3 and Pb (Zr, Ti) O3-ceramics. / Burggraaf, A.J.; Keizer, K.
In: Materials research bulletin, Vol. 10, No. 6, 1975, p. 521-528.Research output: Contribution to journal › Article › Academic
TY - JOUR
T1 - Effects of microstructure on the dielectric properties of lanthana substituted PbTiO3 and Pb (Zr, Ti) O3-ceramics
AU - Burggraaf, A.J.
AU - Keizer, K.
PY - 1975
Y1 - 1975
N2 - The effect of grain size on unit-cell dimensions and dielectric properties has been studied in ceramic lanthana-substituted leadtitanate and leadtitanate-zirconate mixed crystals of the general composition Pb1−αxLaxZryTi1−yO3+x(1.5−α). The influence of grain size has been investigated in the range from 0.6μm–10μm and can be distinguished from other microstructural influences by its effect on dielectric properties. A decrease of the grain size leads to a decrease of the maximum of the dielectric constant ε′ at the “Curie” temperature Tc′, while the value of Tc′ shifts to a lower temperature and the ε′-T curve (phase transition) becomes broadened. The results can be discussed in terms of a distribution of internal compression stresses spreading around an average value which increases with decreasing grain size.
AB - The effect of grain size on unit-cell dimensions and dielectric properties has been studied in ceramic lanthana-substituted leadtitanate and leadtitanate-zirconate mixed crystals of the general composition Pb1−αxLaxZryTi1−yO3+x(1.5−α). The influence of grain size has been investigated in the range from 0.6μm–10μm and can be distinguished from other microstructural influences by its effect on dielectric properties. A decrease of the grain size leads to a decrease of the maximum of the dielectric constant ε′ at the “Curie” temperature Tc′, while the value of Tc′ shifts to a lower temperature and the ε′-T curve (phase transition) becomes broadened. The results can be discussed in terms of a distribution of internal compression stresses spreading around an average value which increases with decreasing grain size.
U2 - 10.1016/0025-5408(75)90177-4
DO - 10.1016/0025-5408(75)90177-4
M3 - Article
VL - 10
SP - 521
EP - 528
JO - Materials research bulletin
JF - Materials research bulletin
SN - 0025-5408
IS - 6
ER -