Pottery and ceramics have been an important part of human culture for thousands of years. From prehistoric storage jars to tiles on the space shuttles, pottery and ceramics have played a key role in innumerable human endeavors. The art of ceramics is one of the oldest known, dating to prehistoric times. Once heated (fired) to between 350⁰ and 800⁰C, the clay is converted to ceramic and will never dissolve again. Ceramic products are used as structural including bricks, pipes, floor and roof tiles, Refractories, such as kiln linings, gas fire radiants, steel and glass making crucibles, Whitewares, including tableware, wall tiles, pottery products and sanitary ware or technical,.