Volume 2, Issue 1 (ویژه نامه 2019)                   KCR 2019, 2(1): 22-35 | Back to browse issues page

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Doosti sani N, Ilkhani M, Khadir S, Ebrahimi A. Technological and Corrosion Studies of BronzeObjects Excavatedin Bam World Heritage Site. KCR 2019; 2 (1) :22-35
URL: http://journal.richt.ir/kcr/article-1-24-en.html
Technological and Corrosion Studies of BronzeObjects Excavatedin Bam World Heritage Site
Narges Doosti sani * , Mahshid Ilkhani , Shaiba Khadir , Afshin Ebrahimi
Research Institute of Cultural Heritage and Tourism
Abstract:   (7286 Views)
The study of metal works of Bam citadel (Arg-e-Bam) is underway to study the pathology of metalworks in Iran.The aim of this project is to study and investigate the corrosion mechanisms of metal objects. Various metallic works including iron, silver and copper alloys have been gained from the area of Arg-e-Bam. The research is focused on a number of bronze works of this historical site.The studies have been done using Microscopic and Macroscopic methods including metallography, wet chemistry, X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). According to dendritic structure of these objects, the results show that most of them have been made in casting method and corrosion products are including Cuprite (Cu2O), Azurite (Cu3(CO3)2(OH)2), Brochantite (Cu4(OH)6SO4), Cassiterite (SnO) and the chloride compounds like Atacamite (Cu2Cl(OH)3), Paratacamite (Cu2Cl(OH)3, Nantokite (CuCl) and Melanothallite (Cu2OCl2). The noticeable point is that there are inclusions containing iron and sulfur in all specimens that represent the using of sulfide ore in copper extraction process.
 
Keywords: Ancient bronzes, Bam, Pathology, Corrosion, Technical studies.
Full-Text [PDF 1018 kb]   (1024 Downloads)    
Type of Study: Research, Original, Regular | Subject: Documentation of historical-cultural, museum objects and architectural decorations
Received: 2018/11/23 | Accepted: 2019/02/14 | Published: 2019/07/14
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