Share this credible answer with others. Simply paste this code into your blog or Web page:
Raw clay is transformed into a porous pottery when it is heated to a temperature of about 500°C.; porcelain is baked at still greater heat. In this process part of the clay becomes vitrified, or glassy, and the strength of the pottery is increased.
|
Answer verified with
|
HighBeam gives you access to newspaper, magazine, and trade journal articles plus press releases, facts, information, and biographies from thousands of sources.