Oxide layers with titanium and zirconium phosphates

• Published in: Russian journal of inorganic chemistry Vol. 53; no. 9; pp. 1347 - 1352
• Main Authors: Rudnev, V. S., Yarovaya, T. P., Nedozorov, P. M., Kaidalova, T. A.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 2008
• Subjects: Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Synthesis and Properties of Inorganic Compunds; Sodium Hexametaphosphate; Zirconium; Mixed Electrolyte; Zirconium Phosphate; Plasma Electrolytic Oxidation
• ISSN: 0036-0236; 1531-8613
• DOI: 10.1134/S0036023608090015

Oxide-phosphate layers 20 to 150 μm thick were obtained on titanium by plasma electrolytic deposition in individual and mixed aqueous electrolytes with polyphosphate complexes of zirconium(IV), barium(II), and copper(II). Formation features, thickness, elemental and phase compositions, and surface morphology of the films are presented. Depending on the electrolyte composition, synthesis conditions, and temperature of annealing in air, some simple and double phosphates of titanium and zirconium are formed, including ZrP
2
O
7
, NaTi
2
(PO
4
)
3
, BaTi
2
(P
2
O
7
)
2
, Zr
0.2
Ti
0.8
P
2
O
7
, and CuTi
2
(PO
4
)
3
.