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Full Record for Micrograph 177
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- Micrograph no
- 177
- Brief description
- Terracotta pottery
- Keywords
- ceramic
, clay, grog, terracotta - Categories
- Ceramic
- System
- Terracotta
- Composition
- Terracotta is composed of mixtures of fired grog and clay.
- Standard codes
- Reaction
- Processing
- Applications
- Flowerpots, roof tiles, ornaments and sculptures, and other outdoor uses.
- Sample preparation
- Polished but unetched
- Technique
- Reflected light microscopy
- Length bar
- 200 μm
- Further information
- Terracotta can be made in large shapes due to the fact that a large part of the raw materials has been prefired, so firing shrinkage is low. The characteristic red colour is due to the presence of iron (II) oxide.
- Contributor
- Dr K M Knowles
- Organisation
- Department of Materials Science and Metallurgy, University of Cambridge
- Date
- 09/08/02
- Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales- Related micrographs