Ceramic paints and wear-resistant reinforced vitroceramics, process for obtaining them, improved coated and vitroceramic manufactured articles so obtained.

摘要

The ceramic paints and the vitroceramics to which are added appreciable quantities of zirconium oxide and/or zirconates and/or zirconium silicate and/or zirconium silicoaluminate increase wear resistance. It has been found that, with an aluminium oxide or corundum granulate reinforcement having a particle size between 200 and 40 microns and preferably between 100 and 50 microns added in the concentration of 5-15% by weight, mechanical strength and abrasion resistance increase in a synergistic and unforeseen manner and pass the severe test of grade V PEI; this is something which does not occur in the case of a paint or vitroceramic to which corundum or aluminium oxide in grain form alone or the above zirconium-barium compounds have been added.