We are pleased to announce a new, online edition of the NICAS colloquium on Thursday 27 February 2025 from 12.00 to 13.00 hrs. The colloquium will take place online through Microsoft Teams. Throughout the year, NICAS organises a bi-weekly Colloquium consisting of two short research lectures. It provides researchers with the opportunity to present ideas for, updates on or results of their activities. The NICAS Colloquium allows people to stay informed on a regular basis about the latest developments and results of research and to exchange information and expertise.
The Chair of this colloquium is Matthias Alfeld (TU Delft) and this week’s presentation is by Michiel Vermaat (UvA).
► Michiel Vermaat – ‘Seeing Beyond the Surface: Investigating Methods of Visualizing Consolidants in Wood Borer-Damaged Wood’.
Abstract:
This research investigates imaging methods for visualizing consolidants in wood borer-damaged polychrome sculpture to improve preservation techniques. X-ray imaging, X-ray computed tomography (CT), and thermal neutron CT were tested for their ability to detect frequently used consolidants and experimental consolidant formulations containing zinc oxide (ZnO) nanoparticles in heavily wood borer-damaged wooden samples.Traditional imaging methods struggled to directly visualize consolidants due to low contrast with the wood matrix. However, ZnO nanoparticle-enhanced consolidants were successfully detected using X-ray and CT, providing indirect evidence of consolidant penetration and distribution. Thermal neutron CT faced similar contrast limitations.
To further analyze the distribution of ZnO nanoparticle-loaded consolidants, Blender was used to create 3D reconstructions from imaging data. This enabled clearer visualization of consolidant flow within the wood structure. The study highlights the potential of ZnO nanoparticles as contrast agents and the value of digital reconstructions in heritage conservation research.
Bio:
Michiel Vermaat recently completed a master’s degree in Conservation and Restoration of Cultural Heritage at the University of Amsterdam. His primary interest lies in overcoming the challenges of assessing the effectiveness of consolidating wood borer-degraded wooden objects. This article is based on his thesis, which explored the use of X-ray imaging, X-ray CT, and thermal neutron CT to visualize the effectiveness of consolidants in damaged wood. Michiel aims to pursue a career in conservation or continue research in applied restoration techniques.