Beginning of Glazing in Ceramic
By: Mitch Johnson
Ceramics decorations are always welcome in our home. The combination of
their shapes and colors makes make them even more unique and elegant.
Find out how the ceramics were created in the beginning of time.
At first all pottery was hardened by drying in the sun, but the
increasing use of fire soon brought out the fact that a fire-baked clay
vessel becomes as hard as stone. Man had no time for luxury then: every
thing was made strictly for utilitarian purposes. Thousands of years
were to pass before he found that different districts produce different
colors of clay, which led to the use of decoration.
These ancient discoveries have been the base upon which the ceramics of the last 4000 years have been built.
Pottery-making, however, did not become a complete art until the
technique of glazing was mastered. Simple clay is porous after being
fired it will hold water for some time, but the liquid will leak slowly
through the air spaces between the clay particles. Glazing not only
made ceramics more durable and eye-worthy, but also watertight.
Glazes are superficial layers of molten material which have been fired
on the clay substance. They are as varied as the many kinds of pottery,
and it must never be forgotten that each type of ceramic body is at its
best with its appropriate glaze.
The early Egyptians, Syrians and Persians are generally credited with
developing the first practical glazing material a very uncertain
alkaline. Pioneer pottery-makers found that glazes often changed the
natural clay colors. They gradually learned to use iron, manganese and
cobalt to tint their wares with breath-taking results. Some of the
earliest glazes were colored glass containing copper or iron which
produced elegant green, turquoise and yellow vases of ancient Egyptian
and Assyrian origin. Marvelous work was wrought with these few
materials, but the era of truly fine pottery dawned with the Persian,
Egyptian and Syrian work that immediately preceded the Crusades.
By this time, the art of glazing pottery with a clear soda-lime had
been thoroughly learned by Middle East artisans. This permitted a new
and revolutionary coloring technique known as under-glazing that is,
the painting of pottery decorations before the glaze is fired. After
being removed from the kiln, the designs could be seen in radiant hues,
glowing through the transparent glaze.
Vases, tiles, oil lamps and ceremonial plates, shaped in good plastic
clay, were covered with a white silicous coating, fit to receive glazes
of this kind, giving the best possible ground for the painted colors
then known.
While Middle East ceramists were producing their beautiful
masterpieces, other cultures throughout the world were also
experimenting, creating new and wondrous works of art from clay and
fire. Just as the potter's wheel was discovered independently by many
races, so was the use of molds and liquefied clay, known today as slip.
From a traditional making of the ceramics until the ceramics were made
with glazing. There is the art of making the ceramic which is still
surviving.
About the Author:
Mitch Johnson is a regular writer for www.curtains-n-drapes.com/ , www.ceramicsmadeeasy.info/ , www.goodbudgetholiday.info/
Article Source: http://www.therealarticles.com