Notice catalographique « Pacific silvercloth : recommendations for its use as a scavenger in silver collections »
- Titre
- Pacific silvercloth : recommendations for its use as a scavenger in silver collections
- Auteur ou éditeur
- Porteous, Gyllian
- Queen's University (Kingston, Ont.)
- Lieu de publication
- Kingston, Ont.
- Maison d'édition
- Queen's University
- Date de publication
- 2016
- Collation
- 37 p., bound
- Résumé
- "Pacific Silvercloth is a common commercial product used in conservation both as a scavenger and barrier to reduce the tarnishing of silver objects. This research builds on the past work of Queen's Art Conservation graduate, S. Smith, who conducted a series of Oddy tests to determine the effects of ageing on Pacific Silvercloth. Though her results were inconclusive, her observations of silver plating and cprrosion on silver, sterling silver, and copper coupons, despite seperation of the metals from the Silvercloth by a barrier, raise and important question as to the possible negative effects of employing this commercial product in silver collections. This study qualified the risks posed by Pacific Silvercloth through a tripartite study. Firstly, an extraction on Pacific Silvercloth was performed revealing the presence of nitrate and phosphate salts. Secondly, an accelerated ageing study was conducted, which placed new Pacific Silvercloth in direct contact with silver, sterling silver, and copper coupons, in a high humidity and high temperature chamber. Extent of corrosion was quantified using a combination of qualitative observations, colorimetry, and scanning electron microscopy (SEM). Results indicated no negative interactions specific to contact between Pacific Silvercloth and pure silver. Pitting, however, was observed on sterling silver coupons aged in contact with Pacific Silvercloth: use of a barrier layer therefore is recommended between Pacific Silvercloth and sterling silver objects. Finally, the two silver impregnated cloths made in house were compared as alternative sulfur-scavengers to Pacific Silvercloth: though the models showed a shorter lifetime than Pacific Silvercloth, a distinct colour change was observable indicating exhaustion of the cloth."
- Notes
- Research Report (M.A.) -- Queen's University, 2016
- Langue
- English = Anglais
- Sujet
- Silverwork - Conservation and restoration
- Silver
- Silverwork
- Argent
- Orfèvrerie (Objets) - Conservation et restauration
- Orfèvrerie (Objets)
- Pays
- Canada
- Type de document
- Monograph = Monographie
- Localisation
- NK 7104.5 P67 2016
- Clé
- 17994
- Collection
- Catalogue