Influence of Organic Materials on the Corrosion of Metals

RIBAROVIC posterAuthor: Vana Ribarović
Mentor: Filip Rogošić, Senior Lecturer; Ivica Ljubenkov, PhD, Assistant Professor

Department of Conservation-Restoration, Arts Academy of the University of Split (Croatia)
Study programme: Integrated undergraduate and graduate course of study in conservation-restoration
Specialization: Metal (graduated in 2018)

Abstract
A great number of artifacts that can be found in museum collections are composite objects made of different materials which release harmful chemical compounds, which can cause them mutual damage. One such example is firelocks (pistols) that were mainly made of metal, with wooden and leather parts. It is well known that wood, as it decays, emits volatile organic acids (acetic acid and formic acid), while leather releases non-volatile organic acids (free fatty acids). Both types of acids cause corrosion. The aim of this test was to learn to what extent organic materials (wood and leather) increase corrosion rates of metals, at certain values of relative humidity. Their impact on metalwork corrosion was measured at three different RH values, based on the assumption that the rates of corrosion of metal samples placed in microclimatic conditions with higher RH would be higher.

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Short biography
VANA RIBAROVIĆ was born in Split. She enrolled in the Conservation-Restoration Department of the Arts Academy in Split in 2013, and gained a master's degree in February 2018. The subject of her master's degree thesis was "The influence of microclimatic conditions on the preservation of metal objects".

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