Formation of calcium titanate by grinding calcium oxide or hydroxide with titanium oxide

1998 ◽  
Vol 53 (11) ◽  
pp. 39
Keyword(s):  
Titanium Oxide ◽  
Calcium Oxide ◽  
Calcium Titanate

The Effect of Micro Arc Oxidation Process Parameters on Surface Properties of Ti6Al4v Alloy

2011 ◽  
Vol 312-315 ◽  
pp. 1000-1003
Author(s):  
M. Gunyuz ◽  
Murat Baydogan ◽  
Huseyin Cimenoglu ◽  
E.S. Kayali
Keyword(s):  
Surface Roughness ◽  
Surface Morphology ◽  
Titanium Oxide ◽  
Process Parameters ◽  
Oxidation Process ◽  
Electrolyte Concentration ◽  
Calcium Titanate ◽  
Ti6al4v Alloy ◽  
Micro Arc Oxidation ◽  
Porous Oxide

This study focuses on the effect of electrolyte concentration of the micro arc oxidation process on the surface morphology of a Ti6Al4V alloy. Micro arc oxidation was performed in “(CH3COO)2Ca.H2O + Na3PO4” containing electrolytes. Micro arc oxidation developed a porous oxide layer mainly consisted of rutile form of titanium oxide on the surface of Ti6Al4V alloy with some calcium titanate (CaTiO3) and Hydroxyapatite. The increase of CH3COO)2Ca.H2O + Na3PO4 concentration of the electrolyte caused disappearance of the pores, reduction of surface roughness and decrease of wettability.

scholarly journals Mechanochemical and sonochemical syntheses of new nanocomposites

2021 ◽  
pp. 79-92
Author(s):  
Valery O. Zazhigalov ◽  
◽  
Olena V. Sachuk ◽  
Olena A. Diyuk ◽  
Iryna V. Bacherikova ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Titanium Oxide ◽  
Organic Compounds ◽  
Tin Oxide ◽  
Visible Light Irradiation ◽  
Amorphous Layer ◽  
Calcium Titanate ◽  
Oxide Surface ◽  
Compound Formation ◽  
First Time

For the first time the possibility of the complex nanodispersed compound formation at mechanochemical and sonochemical treatment of the initial compounds mixture was shown. Mechochemical treatment of the mixture of molybdenum oxide and bismuth nitrate permits to obtain of bismuth molybdate in form of nanoparticles, in the same time the treatment of mixture of titanium oxide and calcium hydroxide leads to formation of calcium titanate in form of nanoprisms. It was shown that mechanochemical treatment of the mixture of titanium oxide and tin oxide leads to formation of titanium oxide amorphous layer on tin oxide surface. The mechanism of nanodispersed zinc molybdate formation at sonochemical treatment of initial oxides was established. It was shown that nanocomposites synthesized by these methods demonstrate the higher catalytic activity in organic compounds neutralization processes in water solutions at visible light irradiation and in the process of bioethanol selective oxidation to acetaldehyde and hydrogen in comparison with known analogous catalysts synthesized by traditional methods.

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