Lead-Zirconate-Titanate Powder Preparation
Coprecipitation Method: The ZrOCl2 solution and TiCl4 solution is mixed along with the addition of ammonia solution with a ph of 7 to 8. The mixing results in a precipitate. The precipitate formed is washed and nitric acid is added so as to form Zr, Ti-nitrate solution.
To the Zr, Ti-nitrate […]

Lead-Zirconate-Titanate Powder Preparation
Lead-zirconate-titanate powder is a very important Advanced Ceramic Raw Material used in various high end applications of Advanced Ceramics. There are two types one is anti Ferro electric lead zirconate (PZ) and the other is Ferro electric lead titanate (PT) and the combination is called PZT.
This combination form a series of […]

The other ball clay resources available are from Payyangadi and Rampuram under Cannanore district in Kerala. These clays are of dark colour firing characteristics due to the presence of higher content of iron and titanium impurities. The alumina content is very high, ranges up to 32% and this makes this clay more suitable for making […]

Lead Titanate Powder Preparation
Hydro thermal Method: In this method oxides or hydrous oxides obtained from nitrates, acetates, chlorides, per chlorates or alkoxides may be used as sources of led and titanium. The hydro thermal reaction happening in the temperature range of about 200 to 300.C is very important in this method.
The reaction is […]

Lead Titanate Powder Preparation
There are two chemical preparation route for preparing Lead Titanate Powder of homogeneous in character and particle size less than one micron.

Co precipitation Method
Hydro thermal Method

Co precipitation Method: In this method precipitating precursors of lead nitrate and titanium tetra chloride solution are used apart from liquid ammonium. To […]

Strontium Titanate Powder Preparation
Spray Pyrolysis Method – Spray Pyrolysis Method otherwise called as Aerosol Decomposition Method is a potential promising method for preparing chemically homogenous multi component powders with controlled morphology and particle size distribution. This process technique is purely based on the intra particle reaction for chemically homogenous multi component powder preparation.
The […]

Strontium Titanate Powder Preparation
Solvent Vaporization Method:
Freeze Drying Method — In the first stage the stable complex of titanium citrate is prepared by mixing titanium tetra isopropoxide with citric acid and deionzed water at about 70.C. The solution is mixed with ammonia solution by adjusting the ph to 5 to 6. The […]

Strontium Titanate Powder Preparation
Complex Precursor Method: In ethylene glycol solution tetra-n-butoxy titanate is added and heated at about 75.C for fifteen minutes under continuous stirring so as to form a mixture of the above two components. To this mixture citric acid is added while heating the mixture to a temperature of about […]

Strontium Titanate Powder Preparation
There are various methods available for preparation of strontium titanate powder and the more important chemical methods are given below

Alkoxide Method
Complex Precursor Method
Solvent Vaporisation Method

Alkoxide Method
Mixture of recrystalised strontium iso-propoxide and distilled Titanium pertiary amyloxide is stiochaometrically refluxed at 85oC for 5 to 6 hours. […]

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 […]