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    ARROWHEADS (TEMREN) FOUND FROM THE EXACAVATIONS AT THE SULTAN GIYASEDDIN KEYHUSREV-II CARAVANSERAI IN EGIRDIR, ISPARTA
    (Ege Univ, 2020) Bozer, Rustem; Yavas, Alptekin; Guder, Umit
    The number of studies on comparisons of technical features of arms in the sophisticated history of Medieval Ages is very limited. One of the reasons for this deficiency is the disregard of this topic in researches, and another reason is that the unclear information about the layers of archaeological finds. Such is the case for Medieval Anatolia as well. Excavation finds like knives, arrowheads and spearheads are not included in the interpretations of war history. Understanding the war technology of Crusaders, Seljuks and Mongols can only be possible by morphologic, archaeo-metallurgical and terminological examinations of the original excavation finds. In this study 64 arrowheads, which were revealed during the 1993, 2006 and 2007 excavations at Giyaseddin Keyhusrev II Caravanserai, Isparta-Egirdir, were discussed in morphologic, archaeo-metallurgical, and terminological perspectives. The finds were evaluated by their layer contexts, dimension, weight, morphology, terminology and typology features; they were classified in accordance with their figural features and compared with contemporary examples. Discussions and proposals were made about naming the types with proper technical terms which are mentioned in arrow treatises and warfare books related to the period. 8 of these arrowheads were examined by using archaeometric methods, their micro-structures and the others were determined by the use of Scanning Electron Microscope (SEM) and Energy Dispersive X-ray Spectrometry (EDS). Apart from the other published medieval arrowheads the samples subjected in this study are the first samples to be directly dated in light of the stratigraphic data collected from the layer contexts that were found in the excavation. Thus, the different types of arrowheads determined by this study are significant in means of the data collected from their technological features such as internal structure and hardness, for a comparative study with other contemporary samples, and building a data base on the technique data of Anatolian Seljuk arrowheads.
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    Multi-phase microstructures in Anatolian Seljuks iron-steel objects: classification and production techniques
    (Acad Sciences Czech Rep, Inst Archaeology, 2018) Guder, Umit; Tasan, Cemal Cem; Yavas, Alptekin
    In this paper a collection of iron objects from the Anatolian Seljuks Period, ca. 12th-13th century AD, are analysed and discussed from a metallurgical perspective. A total number of 21 iron-steel objects, small knives and flat bodied (with thin cross-section) arrowheads was examined. These objects are coming from the Seljuks' cultural layers of Egirdir (Isparta, Central Anatolian Caravanserai), Kubad Abad (Konya, Central Anatolian Sultan's Palace Complex), and Samsat (Adiyaman, Eastern Anatolian Fortress). In the samples which were taken from iron tools, composite-like structures formed by different ferrous phases were revealed by metallography, SEM-EDX and micro hardness examinations. These structures are classified according to the production materials and techniques. The first group revealed signs of continuous forging and, in some cases, bloomery iron folding, which can lead to such composite-like structures. The second group consisted of tools which were produced from different starting materials which were forge-welded before or during shaping process. The crucible steel knives can be classified as another group, in which the composite-like structure exhibits totally different constituents leading to more homogeneous mechanical character. In modern times, composite materials have gained importance and become key engineering materials due to their outstanding specific properties. This study reveals that skilled Seljuks' blacksmiths made similar materials design choices in the production of iron or steel objects, despite limited materials and metallurgical knowledge.