Combustion of ZrO2 - Ca and TiO2 - Ca mixtures in nitrogen

Combustion of calcium with zirconium oxide, as well as calcium and calcium nitride with titanium oxide in nitrogen is studied. The products obtained by the combustion of mixtures with titanium and subjected to acid enrichment contain no more than 15% of particles with a size larger than 40 microns, and more than 32% after the combustion of mixtures with zirconium. The use of a calcium and calcium nitride mixture as a reducing agent decreases the combustion temperature. Significant increasing the amount of calcium in the initial mixture decreases the particle size of the product.