The effect of different dispersants on the physical properties of nano CoAl2O4 ceramic ink-jet ink

Synthesis and color properties of the TiO2@CoAl2O4 blue pigments with low cobalt content applied in ceramic glaze

“…However, the cobalt content of the complex pigments was only 9.52%, which was below of the pure CoAl 2 O 4 pigments and Co 0.5 Zn 0.5 Al 2 O 4 pigments. Moreover, the blue component of TiO 2 @CoAl 2 O 4 complex pigments was better than nano‐CoAl 2 O 4 pigments and Co 0.6 Ca 0.4 Al 2 O 4 pigments, whereas the cobalt content was far less than both later. In all cases, TiO 2 @CoAl 2 O 4 complex pigments evidently reduced usage of cobalt and, meanwhile, possessed with bright blue hue.…”

A comparative study on citrate sol‐gel and combustion synthesis methods of CoAl2O4 spinel

“…Band detected at about 1436 cm −1 were assigned to the C‐H bond of the carboxylic group that is related to citrate acid. The peaks at about 1600 cm −1 and 3455‐3445 cm −1 corresponding to the metal attached hydroxyl groups 6,30 …”

“…Spinel is a ceramic oxide with three elements which its general chemical formula is AB 2 O 4 where, in normal spinels, A stands for a bivalent metal cation (A 2+ ) which occupies a tetrahedral site and B represents a trivalent (B 3+ ) metal cation which occupies an octahedral site of a cubic lattice. In the same time, in inverse spinels, bivalent cation (A 2+ ) occupies an octahedral site and a trivalent (B 3+ ) cation occupies both octahedral and tetrahedral site 4‐6 …”

“…Nowadays, cobalt aluminate (CoAl 2 O 4 ) are used as a color pigment in digital ceramic printing, cobalt and gibbsite precursor, catalyst, and color filter 1‐6 . Moreover, this kind of spinel is one of the great interests among spinels due to its significant properties such as thermal and chemical stability, 6 optical host matrix, 4 high ability of cation diffusion, 4‐7 catalytic application, to name but four 8‐10 …”

Fabrication of a ceramic/metal (Al2O3/Al) composite by 3D printing as an advanced refractory with enhanced electrical conductivity

“…Most ceramic printing technologies are expensive and complicated in terms of the equipment. [18][19][20] For example, in order to print ceramics with SLS, a high power laser is required, and the price of the machine is relatively high. 21 For the paste extrusion technique, the ceramic paste is extruded by a ram that provides a lower resolution than that of typical FDM systems with a more complicated setup.…”