Using Oxides In Ceramics

The mostly known examples for oxide ceramic fibers are composed of oxides such as silica sio 2 mullite 3al 2 o 3 2sio 2 alumina al 2 o 3 and zirconia zro 2 having different characteristic properties.

Using oxides in ceramics.

This is a video tutorial of decorating bisque with red iron oxide. Spatter wax on the surface and paint the oxide wash over that. Bisqueware absorbs the color easily so the two materials work well together. However some plain oxides like cobalt and chromium oxide and some ceramic stains are quite refractory.

This can cause problems with adhesion. Use other masking techniques such as torn wet newspaper and paint an oxide wash. Cover with transparent or translucent glaze. Ceramic stains make it possible to create glazes that fire to just about any color of the rainbow.

Red iron oxide can be layered fired watered down and used in many ways to add a finish to a piece of bisque pottery. Ceramic pigments solve some of the problems found in using just plain oxides. They are both quite versatile ways of coloring ceramics. Or do the same thing with oxide over unfired glaze.

For example when pure chrome oxide is used as a colorant to obtain green it may fume or volatilize in the kiln leading to absorption into the kiln bricks and shelves. It discusses the importance of wiping back how to avoid uneven coverage and many other useful hints. But one drawback is that the glaze surfaces colored with ceramic stains often lack the depth of those glazes that use ceramic oxides. Prepared stains prepared oxides modified oxides inorganic colorants coloring oxides how to use stains when introducing a ceramic stain into a glaze recipe it is best to mix powdered stain with hot water sieve through a 200 mesh screen then add to the wet raw glaze batch.

Some potters will use oxides and stains suspended only in water. Their application areas depend on their melting points and maximum use temperatures. When dry scratch with a sharp tool through the oxide to show the clay underneath.