Author:
Nazarova A Yu,Radishevskaya N I
Abstract
Abstract
Transition-metal oxometallate-based pigments deposited on a dispersed silicate mineral (marshalite, wollastonite) have a bright color and high light- and acid resistance. It is shown that these pigments can be used for protective and decorative aluminophosphate-bonded coatings. Thermal analysis performed on the thermal analyzer SDT Q600 shows that the structure of protective and decorative coatings remains unchanged to temperatures of about 900 °C. Optical studies (Axiovert 200M) demonstrate that colored coatings subjected to heat treatment have a uniform structure without cracks and, therefore, can be used for metal and concrete surfaces. X-ray diffraction (DRON-UM1 diffractometer, CuKα radiation) confirm that the coating contains AlPO4, Al(PO3)3 and Al(H2PO4)3 phases, quartz, and pigment. The insignificant amount of Al3(OH)3(PO4)2·H2O phase is detected.
Subject
General Physics and Astronomy
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