1. A non-invasive investigation of Egyptian faience using a long wavelength optical coherence tomography (OCT) at 2um

    A non-invasive investigation of Egyptian faience using a long wavelength optical coherence tomography (OCT) at 2um

    Egyptian faience is a non-clay ceramic semi-transparent material, formed of a quartz core and alkalilime glaze with some cases exhibiting an interaction layer between them. Several possible glazing methods have been identified. Previous investigations have tried to identify the glazing technique by using the microstructure images obtained from polished sections using scanning electron microscope (SEM). Such techniques require sampling which is not feasible on museum collections. Optical Coherence Tomography (OCT) is a non-invasive 3D imaging technique, that produces virtual crosssections of transparent and semi-transparent materials. Liang et al. (2012a) investigated the feasibility of using OCT to non-invasively investigate microstructures of ...

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