Synthesis of Barium Titanate by a Basic pH Pechini Process

1992 ◽  
Vol 271 ◽  
Author(s):  
Suresh Kumar ◽  
Gary L. Messing
Keyword(s):  
Thin Films ◽  
Barium Titanate ◽  
Microstructure Refinement ◽  
Acid Ph ◽  
Starting Solution ◽  
Pechini Process ◽  
Synthesis Of Barium Titanate

ABSTRACTBarium titanate powders and thin films have been processed by the conventional acid pH Pechini process and a modified basic pH Pechini process. Higher pH of the starting solution resulted in significantly finer grains in the sintered thin films. It is proposed that the microstructure refinement is due to the precipitates, formed only in the basic pH solution and resin.

Low temperature/low pressure hydrothermal synthesis of barium titanate: Powder and heteroepitaxial thin films

1995 ◽  
Vol 10 (7) ◽  
pp. 1784-1789 ◽  
Author(s):  
A.T. Chien ◽  
J.S. Speck ◽  
F.F. Lange ◽  
A.C. Daykm ◽  
C.G. Levi
Keyword(s):  
Thin Films ◽  
Surface Roughness ◽  
Barium Titanate ◽  
Low Temperature ◽  
Surface Coverage ◽  
Ambient Pressure ◽  
Processing Method ◽  
Barium Titanate Powder ◽  
Stability Diagrams ◽  
Synthesis Of Barium Titanate

Barium titanate powder and heteroepitaxial thin films were successfully produced by hydrothermal routes at ambient pressure and temperatures less than 100 °C. This processing method provides a simple low temperature route for producing epitaxied barium titanate thin films on single-crystal SrTiO3 substrates and powders which could also be extended to other systems. A dissolution/reprecipitation growth mechanism also was proposed for the formation of barium titanate by this route using previously published aqueous stability diagrams. Repeated hydrothermal treatments improved film thickness and surface coverage at the expense of increased surface roughness.

Hydrothermal Synthesis of Barium Titanate Thin Films on Titanium Metal Substrates

1991 ◽  
Vol 243 ◽  
Author(s):  
R. Bacsa ◽  
P. Ravindranathan ◽  
J.P. Dougherty
Keyword(s):  
Thin Films ◽  
Hydrothermal Synthesis ◽  
Electrical Properties ◽  
Barium Titanate ◽  
Hydrothermal Reaction ◽  
Titanium Metal ◽  
Polycrystalline Films ◽  
Polymer Substrates ◽  
Metal Substrates ◽  
Synthesis Of Barium Titanate

AbstractWell crystallized polycrystalline films of cubic BaTiO3 have been synthesized on Ti metal substrates by the hydrothermal reaction of Ti metal with Ba(OH) 2 in the temperature range 80°C-200°C. The films have been synthesized on Ti foil and also on Ti sputtered Si and polymer substrates. The crystallinity, microstructure and electrical properties depend critically on the nature of the substrate.

Pulsed excimer laser ablated barium titanate thin films

1992 ◽  
Vol 61 (17) ◽  
pp. 2057-2059 ◽  
Author(s):  
D. Roy ◽  
S. B. Krupanidhi
Keyword(s):  
Thin Films ◽  
Barium Titanate ◽  
Excimer Laser
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