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Ceramics - The basics

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by

Maria Eccles

on 16 October 2014

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Transcript of Ceramics - The basics

Ceramics - The basics
Clay
Ceramics
Score
Wedging/kneading
Slip
A fine-grained firm earthy material that is plastic (bendy, pliable) when wet
and hardens when heated.
Used to make bricks, tiles, and pottery.
Clay is recyclable up to the first firing.
The process of roughening the surfaces
of two pieces that will
be joined together. A fork is the
best tool for scoring clay.
Clay that is thinned with water or vinegar
to form a thick liquid.
Slip is used on scored areas
to join two pieces of clay.
A process used to prepare
clay for working.


Why do you need to wedge your clay?
Relieve clay of air bubbles
Creates consistency in the clay
Detect foreign objects
1.An object, such as earthenware, porcelain, or tile, made of ceramic.

2. The art or technique of making objects of ceramic, especially from fired clay.
Kiln
the furnace used to fire (heat) ceramic objects
Interior of Kiln
Bisque Firing
The first firing
1000 degrees
centigrade
Glaze Firing
The second firing
1200 degrees
centigrade
Types of Kilns
Electric Kiln
Safe, predictable
schools and homes
Gas Kiln
Professional potters/studios
They need watching very carefully
raku
Typically hand-built
Outside
Unpredictable results
Watch ALL of the time
Kiln Furniture
shelves and posts:
made form a material that can withstand high temperatures
Loaded
describes a kiln that is full
Firing
describes a kiln that is "ON"
Stages of Clay
Leatherhard
rigid, dry clay,
no longer mobilizable,
still carveable, partially dry
Bone Dry
completely dry, free of water, fragile, ready to be bisque-fired
Bisqueware
Clay objects that have completed
the first firing, ready to be glazed
Glazeware
Objects that have been fired a second time after glaze has been applied
Greenware
moldable, “fresh”, plastic
Building Techniques
Hand-building
Pinch: using your fingers to manipulate the form
Coil: rolling out ropes of clay
Slab:rolling out sheets of clay - rolling pin
Potter's Wheel
A revolving horizontal disk
on which clay is shaped
Types of wheels: Electric or kick
Full transcript