Gardner, C;
Müller, NS;
Vekinis, G;
Freestone, IC;
Kilikoglou, V;
(2020)
High temperature performance of two-layered ceramics and the implications for Roman crucibles.
Archaeometry
, 62
(5)
pp. 935-951.
10.1111/arcm.12569.
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Abstract
Roman metalworking crucibles are frequently characterised by an extra outer layer (EOL) of clay, applied to a pre‐formed vessel. Three‐point bending and standardised dead‐weight loading tests were conducted to determine the advantages offered by the EOL. Deformation and fracture behaviour, at temperatures up to 1,100°C, of two‐layer, monolithic, and tempered‐monolithic briquettes were compared. Measurements indicate that the two‐layer briquettes are more resistant to fracture at high‐temperatures: above 850°C they show more extensive plastically deformed regions than monolithic briquettes. The influence of temper is consistent with previous results: tempering causes quasi‐stable fracture and reduced fracture strength. Results suggest EOLs assisted in preventing catastrophic failure.
| Type: | Article |
|---|---|
| Title: | High temperature performance of two-layered ceramics and the implications for Roman crucibles |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1111/arcm.12569 |
| Publisher version: | http://dx.doi.org/10.1111/arcm.12569 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions |
| Keywords: | Roman crucibles, multi‐layer ceramics, mechanical properties, high temperature performance |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL SLASH UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Institute of Archaeology UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Institute of Archaeology > Institute of Archaeology Gordon Square |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10095280 |
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