DocumentCode
1749987
Title
Crystal growth and electrical properties of Pb(Sc1/2Nb 1/2)O3-Pb(Zn1/3Nb2/3)O3 -PbTiO3 ternary system
Author
Saigo, Yumin ; Ichinose, Noboru ; Hosono, Yasuharu ; Yamashita, Yohachi
Author_Institution
Sch. of Eng., Waseda Univ., Tokyo, Japan
Volume
1
fYear
2000
fDate
2000
Firstpage
119
Abstract
Single crystals of the xPb(Sc1/2Nb1/2)O3-yPb(Zn1/3 Nb2/3)O3-zPbTiO3 (PSZNT 100x/100y/100z) ternary system have successfully been grown by a flux method using PbO flux. The crystals were grown in a platinum crucible by mass crystallization achieved by the slow cooling of a 55 PbO: 45 PSZNT 10/75/15 (mol%) molten solution from 1,230~1,250°C to 850°C at 1.5~3° C/h. The resulting two types of crystals, 2-5 mm in length with perovskite structure coexist. Inductive Charge Plasma (ICP) chemical analysis revealed that the composition of the pulverized powder of perovskite crystal is Pb(Sc0.23Zn0.16Nb0.55Ti0.15 )O3, which is slightly different from the charged composition of Pb(Sc0.05Zn0.25Nb0.55Ti 0.15)O3. One of the single crystals near the morphotropic phase boundary (MPB) showed a dielectric constant peak of 216°C
Keywords
crystal growth from melt; crystal structure; crystallisation; ferroelectric materials; lead compounds; permittivity; 1230 to 1250 C; 2 to 5 mm; 216 C; 850 degC; Pb(Sc0.05Zn0.25Nb0.55Ti0.15 )O3; Pb(Sc0.23Zn0.16Nb0.55Ti0.15 )O3; Pb(Sc0.5Nb0.5)O3-Pb(Zn0.33 Nb0.67)O3-PbTiO3; Pb(Sc1/2Nb1/2)O3-Pb(Zn1/3 Nb2/3)O3-PbTiO3; crystal growth; dielectric constant peak; electrical properties; flux method growth; inductive charge plasma chemical analysis; mass crystallization; perovskite structure; slow cooling; Chemical analysis; Cooling; Crystallization; Crystals; Dielectric constant; Niobium; Plasma chemistry; Platinum; Powders; Zinc;
fLanguage
English
Publisher
ieee
Conference_Titel
Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on
Conference_Location
Honolulu, HI
ISSN
1099-4734
Print_ISBN
0-7803-5940-2
Type
conf
DOI
10.1109/ISAF.2000.941525
Filename
941525
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