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Basics of Ceramics. Ceramics Defined Pottery or hollow clay sculpture fired at high temperatures in a kiln to make them harder and stronger.

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Presentation on theme: "Basics of Ceramics. Ceramics Defined Pottery or hollow clay sculpture fired at high temperatures in a kiln to make them harder and stronger."— Presentation transcript:

1 Basics of Ceramics

2 Ceramics Defined Pottery or hollow clay sculpture fired at high temperatures in a kiln to make them harder and stronger.

3 Types of Clay: Stoneware High Fire (Cone 5-10) From the earth A buff, gray or brown Mixed with other clays and ceramic materials to make a heavy, opaque, highly plastic clay body

4 Earthenware fired at relatively low temperature, may be glazed or unglazed, and is usually but not always buff, red, or brown in color. pottery or other objects made from fired clay which is porous and permeable

5 Greenware unfired pottery

6 Stages of Clay Leather-Hard: a state in which clay has lost moisture to evaporation, but has not yet completely hardened; clay damp enough to be joined to other pieces with scoring and slip.

7 Stages of Clay Bisque: Clay that has been fired once but not glazed Bone Dry: greenware which is thoroughly room dried.

8 Tools Loop Tool – consisting of a loop of metal attached to a handle, and used in carving leather-hard clay. Pin Tool – used to scratch the surface of clay for scoring or other markings.

9 Techniques Score – to make scratches or creases in pieces of clay to be joined together. Slip – an opaque, creamy liquid made by mixing finely ground clay with water.

10 Technology Kiln – special oven or furnace that can reach very high temperatures and is used to bake, or fire clay. Pyrometric cone – made of ceramic clay placed inside kiln before firing designed to melt at certain temperature.

11 Finalize Glaze – thin coating of minerals which produces a glassy transparent or colored coating on bisque ware. Underglaze - create designs and patterns that will come up through the glaze covering them, which can give the surface more visual depth and character.


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