JAIC 1990, Volume 29, Number 2, Article 5 (pp. 169 to 180)
JAIC online
Journal of the American Institute for Conservation
JAIC 1990, Volume 29, Number 2, Article 5 (pp. 169 to 180)

A STUDY ON DEVELOPMENT OF CRACKS ON PAINTINGS

ADAM KARPOWICZ


ABSTRACT—Humidity-induced movements were studied on biaxially stretched samples of sized and gessoed fabric and on films of size and gesso without fabric. In-plane strains were detected through observation of crack patterns formed in a brittle coating applied on the samples. Different patterns recorded during drying and humidification were found to depend on tension, humidity range, and time. The explanation of results is based on viscoelastic and anisotropic properties of the size layer resulting from changes in molecular conformation brought about by drying in restraint.

Article Sections:

1. INTRODUCTION
2. METHOD
3. RESULTS AND DISCUSSION
4. CONCLUSIONS
a: References , Author Information
Entire Article

Copyright 1990 American Institute for Conservation of Historic and Artistic Works