The features of two clayey raw materials from the Bay of Naples and their fired products were investigated via minero-petrographic and physical techniques.Clay preparation and firing dynamics were performed following a process similar to that performed by ancient and traditional potters. A high-CaO marine clay from Ischia was mixed with different amounts of volcanic temper in order to replicate most common ware. These mixtures show a fair mechanical resistance starting from relatively low firing temperatures (>850 °C). The addition of temper resulted in different technological characteristics. A low-CaO weathered pyroclastics from the Sorrento Peninsula was prepared to simulate heat resistant and refractory ceramics. Fired products are characterised by a less resistant ceramic body up to 1000 °C compared to Ischia ceramics. Despite worse strength these ceramics show a porous structure, yielding better refractory performances.

Clays from the Bay of Naples (Italy): New insight on ancient and traditional ceramics

Grifa .;Langella A;Morra V
2014-01-01

Abstract

The features of two clayey raw materials from the Bay of Naples and their fired products were investigated via minero-petrographic and physical techniques.Clay preparation and firing dynamics were performed following a process similar to that performed by ancient and traditional potters. A high-CaO marine clay from Ischia was mixed with different amounts of volcanic temper in order to replicate most common ware. These mixtures show a fair mechanical resistance starting from relatively low firing temperatures (>850 °C). The addition of temper resulted in different technological characteristics. A low-CaO weathered pyroclastics from the Sorrento Peninsula was prepared to simulate heat resistant and refractory ceramics. Fired products are characterised by a less resistant ceramic body up to 1000 °C compared to Ischia ceramics. Despite worse strength these ceramics show a porous structure, yielding better refractory performances.
2014
Bay of Naples; Raw materials; Experimental firing
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12070/3229
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