Ceramics - Intro to clay :\

jst for the test or wtv :(

Clay is made out of…

Natural Minerals ex: Silica, Alumina, or Magnesia. And or Water

Earth ware

Terre Cotta. Earth tones, low-fire clay body

Porcelain

China, sinks, toilets, ect. High fire, very white and pure clay body.

Stone Ware

Low fire, high fire, white or earth toned. Pots and Vases

What is step 2

Leather Hard: It is strong and it is good for carving and inlays.

What is step 1

Wet Plastic: Malleable and workable. It is good for attachments and forming

What is step 3

Greenware: It is dry and cold. It is good for sponging off bumps and …boogers. Inlays, underglaze and slip decor is good for the greenware.

What is step 4

Bone Dry: The clay is completely dehydrated and extremely fragile.

What is step 5

Bisque Ware: The clay went through chemical change. This step is good for under glaze, and glaze.

What is step 6

Glazed Ceramic: Final chemical change, no more changes can be made.

Stages of Vitrification

It is the stages of change for when clay is fired in a kiln.

Bisque Firing

Cone 04 (1945 deg F)

Glaze Firing

Bottoms are sponged completely of free glaze. Glaze is raw material. Cone 6 (2232 deg F)

Platelets

This is what clay is made out of. They are made like a brick wall.

Wedging

Used to recombine platelets and to get rid of air bubbles and prevent cracking.

Storing clay steps

1. Work on a canvas

2. Build on a board - covered in wet paper towels so it dont stick

3. Wrap project in wet paper towels for storing

4. Put board in a plastic bag, then spray the outside with water

Slipping & Scoring

Used to attach pieces to other clay. You confuse platelets by scratching both of the surfaces with a serrated metal rib. Then use slip to blend in the pieces together.

When do you refine

After you finish building you wait until the clay is in the leather hard stage or the green ware stage. This way you wont mess up the already smoothed out parts.

Serrated Metal Rib

Used for scoring

Smooth metal rib

Used for smoothing things out and compressing clay

Rubber Rib

Used for smoothing things out and compressing clay

Wooden Rib

Used for smoothing things out and compressing clay

Fetting knife

Used to cut out pieces of clay for parts.

Wire Cutter

Used to cut apart blocks of clay.

Pin tool

Used for small details

Wooden Modeling Tool

Used to smooth out cracks and blend in slip and scored pieces.

Carving tools

Used to carve out thick pieces and used to cut out shapes.

Steps for finished Projects

1. Carve initials

2. Carve class period

3. Take photos