Aluminium alloys in swiss public collections : identification and development of diagnostic tools to assess their condition

Degrigny, Christian (Haute Ecole Arc Conservation-Restauration, HES-SO University of Applied Sciences and arts Western Switzerland) ; Schröter, Julie (Haute Ecole Arc Conservation-Restauration, HES-SO University of Applied Sciences and arts Western Switzerland)

Despite their presence in many museum collections as testimony to the great technological advances of the late 19th century, aluminium alloy objects are rarely exhibited or may even be discarded because of their unattractive surface appearance. Conservation professionals are often helpless when faced with these materials which they consider to be unalterable but whose composition, desired appearance during their manufacture, successive uses and corrosion forms developed over the long term are not well known. Any diagnosis is therefore extremely uncertain. The objective of this project was to cover this gap and provide conservation professionals with examination tools and diagnostic assistance. This approach has been applied to more than 400 objects preserved in four Swiss museum or private collections and considered sufficiently representative of the problems posed by aluminium alloys. The materials were systematically analysed, the corrosion forms developed identified, characterised and compared from one collection to another. Some alterations were examined in depth and the observed models were inserted into the MiCorr participatory database (micorr.org). The results obtained should make it possible to appreciate better the nature of the materials studied and understand their long-term performance in order to propose, if necessary, appropriate interventions


Keywords:
Conference Type:
full paper
Faculty:
Design et Arts visuels
Branch:
Conservation
School:
HE-Arc CR
Institute:
Unité de recherche en Conservation-restauration de la Haute Ecole Arc - UR-ARC CR
Subject(s):
Conservation - Restauration
Publisher:
Neuchâtel, Switzerland, 2-6 September
Date:
2019-09
Neuchâtel, Switzerland
2-6 September
Pagination:
8
Published in:
Metal 19, 9th interim meeting of the ICOM-CC metals working group
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2020-04-01, last modified 2020-10-27

Fulltext:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)