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DF Suggestions / Re: Expansion of glazing materials
« on: March 05, 2011, 03:51:08 pm »Quote
NICKEL OXIDE - (m.p. 742o F/400o C) Green: NiO Green Nickel Oxide (typically <3%) is used in glazes (most commonly porcelain enamels) to produce blues, greys, browns, and yellows, depending on the molecular equivalence of the Alkalies, Alkaline earths chosen. It can also be used to soften the effect of Cobalt and Copper colorants.
Black: Ni2O3 in a glaze Black Nickel Oxide will reduce to Green Nickel Oxide at 600o C and produces similar results as NiO. Greater amounts may need to be added to a glaze to achieve the same effects.
Evermind that 'green' bit. Most of these metals are used in oxide form, which is the naturally occurring ore for many of them. It would definately take further research to determine what is possible, but we've at least found some data to work with.