89-112

• Abdel-Maksoud, Gomaa

This study focuses on the changes in the properties of bones that resulted from ʺheatageingʺ at different temperatures and long term of exposure compared to archaeological samples. It also aims to prepare aged samples similar to archaeological samples for theexperimental studies in the conservation of bone artifacts. FTIR, XRD, UV spectrophotometry,dual‐energy X‐ray absorptiometry, polarizing and SEM microscopes were used as analytical techniques. The results revealed that ʺheat ageingʺ technique used at different temperatures (200oC and 300OC) and times (from 1 hour to 13 hours) affected the properties of change in colour, loss of bone density, destruction of the surface morphology, increasing the crystallinity index which, was similar with the archaeological sampleafter 8 and 12 hours of exposure. The study concluded that ʺheat ageingʺ at 300°C after 8hours can give properties close or similar to archaeological samples.

• History and Archaeology

• Αρχαιολογία

Archaeological bone, accelerated ageing, FTIR, XRD, Spectrophotometer, DEXA, microscopes

Περιέχει εικόνες, σχήματα και πίνακες