Structural and mechanical properties characterization of barium strontium titanate (BST) ceramics

2011 ◽  
Vol 27 (3-4) ◽  
pp. 189-196 ◽  
Author(s):  
M. H. Badr ◽  
L. M. Sharaf El-Deen ◽  
A. H. Khafagy ◽  
D. U. Nassar
Keyword(s):  
Mechanical Properties ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Barium Strontium ◽  
Bst Ceramics ◽  
Mechanical Properties Characterization ◽  
Properties Characterization

Barium Strontium Titanate Ceramics Prepared by a Reaction-Sintering Process

2004 ◽  
Vol 848 ◽  
Author(s):  
Yi-Cheng Liou ◽  
Jen-Hsien Chen ◽  
Chi-Ting Wu
Keyword(s):  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Reaction Sintering ◽  
Sintering Process ◽  
Barium Strontium ◽  
Bst Ceramics ◽  
Titanate Ceramics

ABSTRACTBarium strontium titanate (Ba0.7Sr0.3TiO3, BST) ceramics prepared by a reaction-sintering process were investigated. The mixture of raw materials of stoichiometric Ba0.7Sr0.3TiO3 was pressed and sintered into ceramics without any calcination stage involved. Perovskite BST ceramics were obtained after sintered at 1330–1370°C for 2–6 h. For 6 h soak time, a density value 5.68g/cm3 (99.8% of the theoretic value) was obtained at 1350°C sintering. Grains of sizes between 2μm and 15μm were formed after 1330–1370°C sintering for 2–6 h. A diffused ferroelectric-paraelectric transition was observed in pellets sintered at 1330°C for 2 h and disappeared at a longer soak time or a higher sintering temperature.

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