Conservation practitioners seek predictable and successful procedures and treatments for controlling corrosion of heritage metals that conform to aesthetic and ethical boundaries set by prevailing cultural, historical, and archaeological contexts. Understanding metallic corrosion and its prevention is informed by scientific research provided by heritage scientists, conservators themselves and, to a lesser extent, corrosion scientists who may be in academia or industry.Bridging the Gap: Corrosion Science For Heritage Contexts explores the decision-making processes for preserving heritage metals and examines the collaborative, interdisciplinary relationships that underpin them.Through themed chapters, the book is designed to develop and strengthen collaboration between these three groups of professionals, creating a synergy that benefits research and practice for the preservation of heritage metals. It builds an overview of metals conservation across a broad range of heritage contexts, from indoor museum displays to fixed outdoor structures and moving objects. Researchers and practitioners provide critical insights into corrosion problems within heritage, current corrosion mitigation procedures and the evidence supporting best practice guidance.The book will be a valuable reference resource for corrosion and corrosion protection scientists; heritage preservation scientists; conservation practitioners and students studying preservation of cultural objects.

Inhalt

Introduction: Filling the gap

**Section 1: Reflection on the field: specificities of the professions
**1.1 Ethics and constraints
1.1.1 Political context
1.1.2 Big stuff
1.1.3 Military service collections
1.1.4 Original surface
1.1.5 Metallurgy and hydrogen reduction
1.2 From industry to restorers to research scientist and back to applied field
1.3 Conservation education: interdisciplinarity
1.4 Accepting treatment lifetimes and the need for retreatment
1.4.1 CS 1 Submarine
1.4.2 CS3 SS Great Britain
1.4.3 CS4 Desiccated storage of small finds
1.4.4 CS4
1.4.5 CS5 Rail locomotives/ military tanks

Section 2: Methodology of corrosion assessment
2.1 Electrochemistry and impedance spectroscopy
2.2 Cathodic Protection
2.3 Combined use of portable instruments to assess environment
2.4 Atmospheric: drones for atmospheric measurements
2.5 Micorr and the corrosion database
2.6 Assessment decay from lab to site: example of akaganeite

Section 3: Material issues
3.1 Ferrous artefacts and corrosion mechanisms in atmospheric conditions
3.2 Ferrous artefacts in submarine environment
3.3 Weathering steel
3.4 Copper based outdoor
3.5 B-impact project and advances in organic coating
3.6 Lead and silver
3.7 Aluminum
3.8 Metals in association with organic and inorganic materials: composites
3.9 Brass as gold imitation

Section 4: New Treatments
4.1 Subcritical treatment iron
4.2 Subcritical treatment copper
4.3 Bacterial treatment for protection and cleaning of corroded artefacts
4.4 Late research on the use of scanning laser systems for cleaning Cultural Heritage Cu-based artifacts