Ceramic Terms Fired Clay

The composition of any clay body will change depending on where the clay is mined.

Ceramic terms fired clay.

Clay alumina silica water. The crystallinity of ceramic materials ranges from highly oriented to semi crystalline vitrified and often completely amorphous e g glasses. Clay is normally fired twice. After the first firing the clay is called ceramic.

Exceptions are those used for technical structural or refractory applications. A hard stone like ceramic material formed when the clay is fired into a semi vitrified state at 2190 f 1200 c and over. All fired ceramic wares or materials which when shaped contain a significant amount of clay. The first firing is called the bisque fire and the clay becomes bisqueware.

Refers to the appearance of broken bubbles found on the glazed surfaces of fired ceramic pieces. The oven in which ceramic pieces are fired to convert them from unstable greenware into durable finished pieces. Common examples are earthenware porcelain and brick. A fusible vitreous coating fired at low temperatures for clay articles.

Chucks are thrown and bisque fired clay cylinders which are open on both sides. Ceramics objects made of clay fired sufficiently high in temperature for a chemical change to take place in the clay body usually over 1550 degrees f. Long strands of clay which are. Ceramic clay vocabulary list 1.

2 a ceramic material 3 a place where pottery wares are made. Often called clay body. Coil a piece of clay rolled like a rope used in making pottery. Four ceramic construction techniques.

Contact face between clay and glaze. The term used to describe any formula of clay. A white or coloured coating of slip applied to the clay for decoration before glazing. A further firing to convert ceramic colouring materials applied on top of a glaze to a permanent form.

1 the art and wares made by potters. This term is derived from the latin culina which refers to a structure built for the purpose of retaining heat that is introduced into the main chamber. Clay body a mixture of different types of clays and minerals for a specific ceramic purpose. On low fired wares primarily just a physical interlocking of glaze into pores in clay.

A ceramic is any of the various hard brittle heat resistant and corrosion resistant materials made by shaping and then firing a nonmetallic mineral such as clay at a high temperature. The second fire is the glaze fire and this clay is called glazeware. And 4 the business of the potter. The range of terms to use to refer to fired clay can be a bit confusing.

In high fired wares an intimate interaction of clay and glaze reinforced by mullite crystals creating very strong bond. For example porcelain is a translucent white clay body.