Ceramics
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Transcript of Ceramics
CeramicsCreating a ceramic vessel
Clay Clay is a natural 3-d
medium made from earth and water.
Clay is different from mud because it has plasticity, this means I can hold shape while being handled.
In Asheville at highwaterclays.com North Carolina wet clay is sold as cheap as $.55 per pound, but has a fifty pound minimum.
Basic Terms Ceramics – objects that
permanently retain their shape when heated to the necessary temperature.
Pottery – Moist clay shaped into utilitarian objects such as bowls, cups, plates, etc. then hardened by heat.
Basic Terms Continued Wedge – A way of
improving the workability of the clay by reforming the mixture to be homogeneous by evening the texture and eliminating the air bubbles.
Basic Terms Continued Kiln – may also be pronounced kill, is a specialized
oven design to heat clay to the high temperatures needed to change it’s chemical make-up.
Basic Terms Continued
Fire – Heating pottery to a temperature high enough to change it’s chemical make-up to render it a final product.
Hand Building Methods
Pinch pot
Slab Building
Coil Building
Hand Building Methods
Pinch pot - Hand building method which involves squeezing clay between thumb and fingers.
Hand Building Methods Coil Building –
Attaching long thin rolls of clay together to create a ceramic work.
Hand Building Methods Slab Building - Clay
building technique where thin sheets of clay are attached together to create a ceramic work.
Construction terms Scoring – scratching
the edges of clay before jointing. (ALWAYS SCORE DEEP)
Slip – a mixture of clay and water which acts as a clay glue.
Clay Stages Greenware - moist workable unfired clay.
Leatherhard - stage of clay where joining should happen, at this point clay is not moldable but may still be worked with.
Bone Dry - this is as dry as the clay gets without firing it. It is now ready for firing.
Clay Stages Bisqueware – clay which
has gone through a low fire in a kiln, this can not be recycled, will not yet hold water.
Glazeware - clay which has been glazed and fired at a high temperature, now is a finished product.
Glaze - a liquid glasslike substance which when fired creates a glasslike coating on a ceramic artwork.