Abstract:
The current technology is directed to red and red-shade violet pigments with an hexagonal ABO 3 structure of the form Y(In, M)O 3 in which M is substituted for In in the trigonal bipyramidal B site of the ABO 3 structure, and where M is a mixture containing Co 2+ and charge compensating ions, or M is a mixture containing Co 2+ and charge compensating ions, as well as other aliovalent and isovalent ions.
Abstract:
The current technology is directed to an iron-substituted copper aluminum delafossite pigment, as well as a gallate version of the same. In particular, the materials may be defined as iron-substituted copper aluminum delafossite, CuFe x A1 1-x 0 2 and the gallate, CuFe x Ga 1-x 0 2 where X=0.01 to 1.00, for example, CuFe 0.15 A1 0.85 O 2 , and CuFe 0.15 Ga 0.85 O 2 . The pigments are dark-brown to black, absorb most light in the visible spectrum, but have low absorbance and high reflectance in the near-infrared regions, specifically light from about 700 nm - 2500 nm.
Abstract:
The current technology is directed to an iron-substituted copper aluminum delafossite pigment, as well as a gallate version of the same. In particular, the materials may be defined as iron-substituted copper aluminum delafossite, CuFexAl1-xO2 and the gallate, CuFexGa1-xO2 where X=0.01 to 1.00, for example, CuFe0.15Al0.85O2, and CuFe0.15Ga0.85O2. The pigments are dark-brown to black, absorb most light in the visible spectrum, but have low absorbance and high reflectance in the near-infrared regions, specifically light from about 700 nm-2500 nm.
Abstract:
The current technology is directed to red and red-shade violet pigments with an hexagonal ABO3 structure of the form Y(In, M)O3 in which M is substituted for In in the trigonal bipyramidal B site of the ABO3 structure, and where M is a mixture containing Co2+ and charge compensating ions, or M is a mixture containing Co2+ and charge compensating ions, as well as other aliovalent and isovalent ions.