Soluble Salts Ceramics

Soluble salts details in ceramics certain compounds e g.

Soluble salts ceramics. Non archaeological objects such as modern dishware. Calcium or magnesium sulphate in clays and glazes can dissolve into the water of the plastic material then on drying these are left on the surface as the water evaporates. I wanted to be able to fire the soluble salts to hotter temperatures and doing so in ceramic saggars would make that possible foil begins to break down around 1400 f 760 c. Dissolved metallic salts are applied to the porous surface creating unique patterns on the exterior and interior surfaces.

Dec 20 2017 explore lois aronow s board soluable salts followed by 258 people on pinterest. The presence of soluble salts can be detected with a conductivity meter or by the use of microchemical testing odegaard carroll and zimmt 2000 and can be addressed by desalination if necessary. Because the metallic salts that i use for the decoration of my work are soluble they add a quality that could not be achieved with traditional oxide decoration. They are absorbed into the body and interact with each other reminiscent of watercolour painting.

See more ideas about ceramics metal salts pottery. My saggar process primarily uses soluble salts to obtain certain colors with the occasional addition of organic materials or wire for further effect. A common degradation issue in ceramics involves soluble salts. Watercolors on porcelain is a technique using water soluble colorants rather than pigments.

Mark goudy and liza riddle are a couple from berkeley california who are blazing a new frontier in ceramic arts with their explorations into the applications of soluble metal salts. As you can see from the detail shown the term watercolors on porcelain used to describe this technique is very apt. Soluble salts can either enter the clay body from the environment for example from being buried underground for decades or they are already naturally occurring due to the components of the materials or clay used. Many archaeological ceramics suffer from contamination by soluble salts nitrates chlorides and sulfates buys and oakley 1993.