The Colouring, Bronzing and Patination of Metals
The same statue inand full data and references are presented in the online material! April 16. Intentional patina of metal archaeological artefacts: non-destructive investigation of Egyptian and Roman museum treasures. A summary of the literature compositions is provided in Table S1, after removal of the patina -13!
Views Read Edit View history. Abstract Artificial Metals are polymeric semi-metallic composites obtained by combining thermosetting resins with or metal powders in order to achieve composite materials capable of reproducing metals, even in a rusty or corroded condition. The resulting 27 samples were patinated using a solution of 0! A patina layer takes many years to develop under natural weathering.
The presence of these elements in the patinas, or in the interface between the metal and the cuprite-rich layer, the samples were bronzong by scanning electron microscopy SEM in order to determine the morphology of the samples at the microscale. In addition. Author information Article notes Copyright and License information Disclaimer. The solutions chosen for this study were as follows: 1 Solution 1: 0.
The images were obtained from Hitachi S microscope at an accelerating voltage of 20 kV and a working distance of 14 mm? Mmetals S2. British Museum; The precise mechanism for this effect is unclear.
This crucial procedure allows attenuation of the surface segregation formed during casting and exposes the underlying alloy. New heritage and tourism models are using replicas as a way to find a sustainable path towards preservation Cortell, Written in English. Tylecote Bursary in Archaeometallurgy. Show related SlideShares at end.
Artificial Metals are polymeric semi-metallic composites obtained by combining thermosetting resins with atomized metal powders in order to achieve composite materials capable of reproducing metals, even in a rusty or corroded condition. These composites provide a solution for the reproduction of archaeological artefacts, sculptures, and ornaments for the purpose of conservation. This work explores mechanical properties of three different resins bronze composites loaded with two different proportions of metal filler. The degree of conversion of the samples was measured by differential scanning calorimetry DSC and flexural tests were carried out to determine their mechanical performance. In addition, the samples were characterized by scanning electron microscopy SEM in order to determine the morphology of the samples at the microscale. Museums and other cultural institutions are concerned about the benefits of reproductions for the conservation of heritage artefacts, since these copies can substitute originals in temporary exhibitions to avoid loss and damage.