Barium Titanate Powder Preparation
Hydrothermal Synthesis Method
TiOCl2 and BaCl2 are treated in Sodium Hydroxide solution at about 120 oC to 300oC under pressurization of 5 to 50 Bar Pressure. This hydrothermal reaction produces barium titanate powder. Normally the stoichiometry is not maintained due to excess titanium. To maintain the stoichiometry the synthesis is therefore […]

Barium Titanate Powder Preparation
Complex Precursor Method
By thermal decomposition of barium titanium catecholate precursor, formed from Titanium Chloride and Barium Carbonate and catechol we can produce submicron stoichiometric Barium Titanate powder. The Chemical reaction takes place in two stages as follows.
i) TiCl4 + 3C6H4(OH) 62 ——-> H2Ti(C6H4O2)3 + 4HCl
ii) H2Ti(C6H4O2)3 + BaCO3—-> BaTi(C6H4O2)3(s) + […]

Barium Titanate Powder Preparation
Complex Precursor Method
This method involves a thermal decomposition process of Barium Titania Citrate Polyester resin. In the first stage a chelate of Barium and Titanium ions with a hydroxycarboxylic acid like citric acid in an aqueous medium is prepared. The prepared solution is heat treated at a temperature […]

Barium Titanate Powder:
Complex Precursor Method:
Barium titanyl oxalate is pyrolysed at about 600 to 700.C to form Barium Titanate Powder. The reaction of precursor formation can be summarized as follows :
BaCl2 + TiCl4 + 2H2C2O4 + 5H2O —> BaTiO(C2O4)2 . 4H2O + 6HCl
Here Barium Chloride, Titanium Chlorate and […]

Barium Titanate Powder:
The following methods are widely used for the preparation of Barium Titanate Powder:

Alkoxide Process
Complex Precursors Process
Hydro Thermal Synthesis Process

Alkoxide Process
(1) In the solvent like Isoproponal or Benzene, Barium bi Isopropoxide and Titanium-tetrakistertiary amyloxide are dissolved. The solution is further decomposed hydrolytically at room temperature in carbon-di-oxide free atmosphere. During […]

Titanate Powder Composites:
There are many types of titanate composite powders are available in the market, however the following are the important varieties of titanate composite powders having wide applications in the manufacture of Advanced Ceramic Materials.

Barium Titanate Powder
Strontium Titanate Powder
Lead Titanate Powder
Lead Zirconate Titanate Powder

Each variety has got its […]

Titanate Powder Composites:
The Titanate Powder Composite material is an advanced Tatania Powder products having perovskite type mineral structure. This group of materials have the general formula ABO3 under similar in crystallographic structure of the natural mineral perovskite having the formula CaTiO3.
These groups of titanate are extensively used in various hitech electronic devices like high permittivity […]

Laser Synthesis Method:
This method is a most versatile method for preparing Titania powder by pyrolysis of Titanium isopropoxide solution. This process involves the pyrolysis of pure isopropoxide vapour in a carrier gas of argon, ethylene or ethylene/oxygen. A laser power of 100 to 200 W is used for the fast heating. This brings about a […]

Forced Hydrolysis Method:
This method otherwise called as Homogeneous precipitation technique involves hydrolysis of TiOSO4 in presence of urea at a temperature of 70 to 90.C. This generates monodispersed spherical morphology Titania powder. The presence of urea accelerates the hydrolysis reaction and also helps to get controlled spherical particle morphology.
The decomposition of urea generates ammonia […]

Alkoxide Hydrolysis Process:
In the second method very high purity mono disperse and super fine amorphous powder of spherical morphology can be prepared. The Titanium ethoxide or isopropoxide in dilute alcoholic solution is hydrolized by controlled preparation route. The formed hydrous precipitate is washed with deionised water and dispersed in an aqueous solution of ph ranging […]