Ceramic Terms Fired Clay

Refers to the appearance of broken bubbles found on the glazed surfaces of fired ceramic pieces.

Ceramic terms fired clay. Clay alumina silica water. The first firing is called the bisque fire and the clay becomes bisqueware. The crystallinity of ceramic materials ranges from highly oriented to semi crystalline vitrified and often completely amorphous e g glasses. Common examples are earthenware porcelain and brick.

Often called clay body. The oven in which ceramic pieces are fired to convert them from unstable greenware into durable finished pieces. Clay is normally fired twice. The second fire is the glaze fire and this clay is called glazeware.

Terracotta a term for clay or an object made in a high iron content clay that is smooth and fires a rich red brown. In high fired wares an intimate interaction of clay and glaze reinforced by mullite crystals creating very strong bond. 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. After the first firing the clay is called ceramic.

Generally bisque is clay that has been fired to a kiln setting of cone 04. Chucks are thrown and bisque fired clay cylinders which are open on both sides. 1 the art and wares made by potters. A fusible vitreous coating fired at low temperatures for clay articles.

A hard stone like ceramic material formed when the clay is fired into a semi vitrified state at 2190 f 1200 c and over. Long strands of clay which are. Coiled pottery one of the oldest ways of forming pottery. A further firing to convert ceramic colouring materials applied on top of a glaze to a permanent form.

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. For example porcelain is a translucent white clay body. Four ceramic construction techniques. Clay body a mixture of different types of clays and minerals for a specific ceramic purpose.

All fired ceramic wares or materials which when shaped contain a significant amount of clay. The term used to describe any formula of clay. A white or coloured coating of slip applied to the clay for decoration before glazing. Ceramic clay vocabulary list 1.

The composition of any clay body will change depending on where the clay is mined. Exceptions are those used for technical structural or refractory applications. On low fired wares primarily just a physical interlocking of glaze into pores in clay. Coil a piece of clay rolled like a rope used in making pottery.

And 4 the business of the potter. 2 a ceramic material 3 a place where pottery wares are made.