10 research outputs found

    Perspectives

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    Obtaining cross-sections of paint layers in cultural artifacts using femtosecond pulsed lasers

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    Recently, ultrafast lasers exhibiting high peak powers and extremely short pulse durations have created a new paradigm in materials processing. The precision and minimal thermal damage provided by ultrafast lasers in the machining of metals and dielectrics also suggests a novel application in obtaining precise cross-sections of fragile, combustible paint layers in artwork and cultural heritage property. Cross-sections of paint and other decorative layers on artwork provide critical information into its history and authenticity. However, the current methodology which uses a scalpel to obtain a cross-section can cause further damage, including crumbling, delamination, and paint compression. Here, we demonstrate the ability to make controlled cross-sections of paint layers with a femtosecond pulsed laser, with minimal damage to the surrounding artwork. The femtosecond laser cutting overcomes challenges such as fragile paint disintegrating under scalpel pressure, or oxidation by the continuous-wave (CW) laser. Variations in laser power and translational speed of the laser while cutting exhibit different benefits for cross-section sampling. The use of femtosecond lasers in studying artwork also presents new possibilities in analyzing, sampling, and cleaning of artwork with minimal destructive effects

    Materialness, consumer technology and electronic waste

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    An international group of artists, cultural theorists and scientists will follow a practice-based approach to explore the materiality of obsolete and discarded electronic devices in a series of workshops, symposiums and exhibitions in Hong Kong, Lagos, Nigeria, and London, UK. Central to the workshops in Nigeria and China will be a series of practice-based explorations of e-waste recycling labour

    Materialness, consumer technology and electronic waste

    No full text
    An international group of artists, cultural theorists and scientists will follow a practice-based approach to explore the materiality of obsolete and discarded electronic devices in a series of workshops, symposiums and exhibitions in Hong Kong, Lagos, Nigeria, and London, UK. Central to the workshops in Nigeria and China will be a series of practice-based explorations of e-waste recycling labour.</p
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