<p>Metal 3D printing typically requires high energy laser or electron sources. Recently, 3D printing using metal filled filaments becomes available which uses PLA filaments filled with metal powders (such as copper, bronze, brass, and stainless steel). Although there are some studies on their printability, the detailed study of their sintering and characterizations is still missing.</p> <p>In this study, the research is focused on 3D printing of bronze filaments. Bronze is a popular metal for many important uses. The objectives of this research project are to study the optimal processing conditions (like printer settings, nozzle, and bed temperatures) to print bronze metal filament, develop the sintering conditions (temperature and duration), and characterization of the microstructure and mechanical properties of 3D printed specimens to produce strong specimens.</p> <p>The thesis includes three components: (1) 3D printing and sintering at selected conditions, following a design of experiment (DOE) principle; (2) microstructure and compositional characterizations; and (3) mechanical property characterization. The results show that it is feasible to print using bronze filaments using a typical FDM machine with optimized printing settings. XRD spectrums show that there is no effect of sintering temperature on the composition of the printed parts. SEM images illustrate the porous structure of the printed and sintered parts, suggesting the need to optimize the process to improve the density. The micro hardness and three-point bending tests show that the mechanical strengths are highly related to the sintering conditions. This study provides important information of applying the bronze filament in future engineering applications.</p>

The Early-Middle Bronze Age in Cyprus (c. 2300-1650 BCE) is still poorly understood, in spite of Cyprus's strategic importance in the Mediterranean and the revolutionary cultural transformations that occurred at the end of this period. The west coast in particular, has remained a relatively blank spot on the map of the Eastern Mediterranean, where excavations have been entirely lacking until very recently. In the absence of excavated sites, a great deal of information regarding western Cypriot society from this period must be derived from pottery. This thesis aims to understand the nature of the ceramic material culture in the west through an analysis of the ceramics from the cemetery of Kissonerga-Ammoudhia, at present the largest corpus of western Cypriot funerary pottery from this period. The entire excavated assemblage is presented and a multidisciplinary approach to the ceramics is applied. A traditional typological study was conducted on the entire assemblage, and a microscopic petrographic analysis applied to a sample in order to identify the manufacturing techniques used by the potters. This corpus of information can be used to test the nature and validity of evidence for regional identity. Although there appears to be a broadly similar culture with the rest of the island, the ceramics from Ammoudhia nevertheless show significant differences to those from contemporary sites. This site contains a very large amount of Drab Polished ware; little known elsewhere, this poorly understood, but potentially vital type of pottery appears to be a western local tradition. Although originally dated to the late Middle Bronze Age, this thesis provides evidence for a considerably earlier date in western Cyprus. It also argues for this being a very long lived ware with particularly sophisticated manufacturing techniques, and is one of the technological precursors to Base Ring ware, the ubiquitous pottery vessels of the Late Bronze Age. This thesis places western Cyprus into an island-wide context, allowing for meaningful comparisons with contemporaneous sites and lays the foundations for a clearer understanding of the chronological and technological sequence, fitting into our understanding of the precursors to secondary state formation, in particular: funerary and ritual practices, trade and exchange and technological advances. This corpus from the Kissonerga Ammoudhia cemetery represents the first ever study of a large body of information from the Early-Middle Bronze Age of Western Cyprus. As such it can provide both the framework for further analyses, as well as the first glimpses of the unique culture of this area, and an understanding of how this region fits into the wider Bronze Age Mediterranean world.

The production and trade in copper and bronze was one of the major features of the complex societies in the Near East and Mediterranean during the third to first millennia B.C. While finished metal objects are common finds from the period, ancient metal ingots and hoards of scrap metal, as well as archaeological evidence of metallurgical activities, are often more important sources of information for how ancient technology and trade functioned. Shipwrecks, particularly those found off the coast of Turkey at Uluburun and Cape Gelidonya, as well as mining and smelting sites in the Mediterranean region, provide invaluable information on the production and trade of copper and tin, the main ingredients of bronze. In this thesis, I examine the evolution of the copper trade in the eastern and central Mediterranean, particularly during the Late Bronze Age, when ‘oxhide’ ingots were widely exported. Finds of oxhide ingots have increased dramatically in recent years, and no synthesis of all of this newly available evidence is currently available. I attempt to analyze this new evidence in relation to older finds and research, with a particular focus on the cargo of the Uluburun shipwreck, the largest collection of Bronze Age metal ingots from a single site in the Mediterranean. The history of oxhide ingot production is complex, but by the Late Bronze Age Cyprus was supplying much of the copper used to neighboring regions, with revolutionary effects on societies in Cyprus and elsewhere. The archaeological evidence shows that oxhide ingots are early examples of a standardized industrial product made for export by emerging state-level societies during the second millennium B.C. and fueled the development of international trade, metallurgical technology, and complex social institutions in a variety of Mediterranean societies from Egypt and the Levant, Greece, Cyprus, to Sardinia in the central Mediterranean.

Diss.--Freie Universität Berlin, 1993. / Textes en allemand, sommaires en anglais et russe. Bibliogr. p. 182-192. Index.

Dissertation--Philosophische Fakultät für Altertumskunde--München--Ludwig-Maximilians-Universität, 1989. / Bibliogr. p. 347-378.

Texte remanié de: Doct. diss.--Göteborg university. / Bibliogr. p. 112-122.

Th. doct.--Sciences historiques et philologiques--École pratique des hautes études, Paris Sorbonne, 1996. / Bibliogr. p. 478-493.

Texte remanié de: PhD thesis--Universityof Michigan, Museum of anthropology--Ann Arbor, 1999. / Bibliogr. p. 206-224.

Texte remanié de: Ph. D. thesis--University of Southampton, 2005. / Bibliogr. p. 223-251.

Texte remanié de: Thèse de doctorat--Art et archéologie--Paris 1, 1999. Titre de soutenance : Le bronze des dépositions volontaires en Italie centrale, 1200 à 725 env. avant notre ère : recherches pour une histoire des techniques. / Bibliogr. p. 337-363. Notes bibliogr.