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Clay PowerPoint Presentation

Clay

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Clay

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Presentation Transcript

  1. Clay What ? How ? Why ?

  2. CERAMICS • CERAMIC • Object made of clay and fired (baked). • Clay- An earthy material that is plastic (pliable) when wet but hard when fired. • Clay is crushed crystalline minerals or stone (Feldspars) Mixed with other organic materials. • Clay is abundant. • Clay deposits are found in sedimentary layers. • Deposits created by weathering and erosion.

  3. STATES OF CLAY • GREEN WARE-Clay that has not been fired in the kiln (kill) and can be recycled to reuse • -Slip- Watery clay (liquid) • -Pliable (lean to fat)or( too wet or too dry) • -leather hard - Firm or stiff still damp. • -bone dry - all moisture appears to be gone • Bisque-ware- Clay that has been fired once and it cannot be recycled for reuse. • Glaze-ware- Ceramic piece fired twice coated with glaze.

  4. Hand Building TechniquesWays to use clay • Pinching • Slabs • Coils • Slipping and Scoring • Surface textures and decoration • Functional or Non-Functional