Direct and indirect measurement of large electrocaloric effect in barium strontium titanate ceramics

2019 ◽  
Vol 17 (3) ◽  
pp. 1354-1361 ◽  
Author(s):  
Guangzhou Dai ◽  
Shibin Wang ◽  
Guanhua Huang ◽  
Guirong Chen ◽  
Biao Lu ◽  
...  
Keyword(s):  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Indirect Measurement ◽  
Electrocaloric Effect ◽  
Barium Strontium ◽  
Titanate Ceramics

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.

Dielectric and Conduction Properties in Nickel Doped Barium Strontium Titanate Ceramics

1998 ◽  
Vol 37 (Part 1, No. 6A) ◽  
pp. 3370-3373 ◽  
Author(s):  
Mustapsha Hafid ◽  
Souhaila Moudden ◽  
Chantal Proust ◽  
Elisabeth Husson ◽  
Shinsuke Takeoka ◽  
...  
Keyword(s):  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Barium Strontium ◽  
Titanate Ceramics ◽  
Conduction Properties

Dielectric and Conduction Properties in Nickel Doped Barium Strontium Titanate Ceramics

1999 ◽  
Vol 38 (Part 1, No. 1A) ◽  
pp. 302-302
Author(s):  
Mustapsha Hafid ◽  
Shinsuke Takeoka ◽  
Sousuke Nishida ◽  
Tatsuo Fukami ◽  
Jianxin Sheng
Keyword(s):  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Barium Strontium ◽  
Titanate Ceramics ◽  
Conduction Properties
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