NDLI: The influences of firing temperatures and excess PbO on the crystal structure and microstructure of (Pb$_{0.25}$ Sr$_{0.75}$)TiO$

Content Provider	Springer Nature Link
Author	Sumang, Rattiphorn Bongkarn, Theerachai
Copyright Year	2011
Abstract	Polycrystalline samples of (Pb$_{0.25}$Sr$_{0.75}$)TiO$_{3}$ (PST75) were prepared by the solid-state reaction method. The effects of firing temperatures and excess PbO on PST75 ceramics were investigated. The PST75 was calcined between 600 and 1000 °C for 3 h and the sintering temperature ranged between 1050 and 1250 °C for 2 h. The optimized calcination and sintering conditions were identified as 950 and 1250 °C, respectively. The lattice parameter c increased, while the lattice parameter a decreased with increased firing temperatures. The average particle size and average grain size increased with increased firing temperatures. After the addition of PbO—excess 0, 1, 3, 5, and 10 wt%—in the PST75 samples, the lattice parameter a decreased. The average particle size and the average grain size increased with the increase of PbO. The porous microstructure slightly decreased with an increasing amount of PbO—up to 3 wt%—then slightly increased with the higher excess PbO. The density was improved by adding 3 wt% of excess PbO. A low dielectric loss was observed from the 3 wt% excess PbO sample.
Starting Page	6823
Ending Page	6829
Page Count	7
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	46
Issue Number	21
e-ISSN	15734803
Language	English
Publisher	Springer US
Publisher Date	2011-06-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Crystallography Materials Science Mechanics Continuum Mechanics and Mechanics of Materials Polymer Sciences Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics

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