http://arthra.ugal.ro/handle/20.500.14043/25615 2026-04-19T11:30:10Z 2026-04-19T11:30:10Z Poroch-Serițan, Maria Gutt, Gheorghe Bobu, Maria Severin, Traian Stroe, Silviu Mihoc, Carmen http://arthra.ugal.ro/handle/20.500.14043/25648 2020-09-03T13:24:36Z 2009-01-01T00:00:00Z

Influence of Technological Parameters on the Evolution of Nickel Films Deposited by Electrolysis Poroch-Serițan, Maria; Gutt, Gheorghe; Bobu, Maria; Severin, Traian; Stroe, Silviu; Mihoc, Carmen The influence of technological parameters on the structure of nickel layers electrodeposited on a copper substrate in a Watts bath has been studied. The complex influence of current densities, temperature and pH values on the formation of the deposition layers are compared. The surface morphology of the nickel films was analyzed by scanning electron microscopy (SEM) and atomic force microscopy (AFM). X-ray diffraction (XRD) was used to investigate the crystallinity of the prepared samples. The increase in the current density leads to fine crystallized films, while layers obtained at even higher current density have dendritic structures. The temperature increasing results in a structure change from fine to coarse. THE ANNALS OF “DUNAREA DE JOS” UNIVERSITY OF GALATI. FASCICLE IX. METALLURGY AND MATERIALS SCIENCE N0. 1 – 2009, ISSN 1453 – 083X

2009-01-01T00:00:00Z Plăiașu, Adriana Gabriela Abrudeanu, Mărioara http://arthra.ugal.ro/handle/20.500.14043/25647 2020-09-03T13:24:36Z 2009-01-01T00:00:00Z

Rapid Synthesisof ZnO Micro and Nanostructures Plăiașu, Adriana Gabriela; Abrudeanu, Mărioara This paper focuses on the newer chemical synthesis of zinc oxide powders and the effects of reaction temperature and possible mechanism of ZnO formation. The study of the reaction mechanism at different temperatures has resulted in establishing the optimum condition for the hydrothermal process. THE ANNALS OF “DUNAREA DE JOS” UNIVERSITY OF GALATI. FASCICLE IX. METALLURGY AND MATERIALS SCIENCE N0. 1 – 2009, ISSN 1453 – 083X

2009-01-01T00:00:00Z Cosor (Rusu), Daniela Ecaterina Munteanu, Viorel Gheoghieș, Constantin http://arthra.ugal.ro/handle/20.500.14043/25646 2020-09-03T13:24:36Z 2009-01-01T00:00:00Z

Preliminary Investigations Concerning Monitoring of Water Pollution Level Cosor (Rusu), Daniela Ecaterina; Munteanu, Viorel; Gheoghieș, Constantin The aim of this paper is to develop an effective tool based on artificial intelligence techniques for monitoring and characterization of surface waters. Monitoring of the pollution in the aquatic environment consists in the recording of the concentrations of different chemical compounds from water, compounds that exceed the limits of maximum concentrations allowed by the regulations in force. From the chemical point of view, the quality of aquatic environment is determined by analytical control, followed by storing the results of laboratory analysis and creation of a database in order to ensure the optimal conditions for life and reproduction of aquatic organisms. The expert system will use the multitude of data obtained, allowing finally the improvement of methods for interpretation of physical and chemical parameters according to European legislation in force. This improvement can be achieved by AI algorithms. THE ANNALS OF “DUNAREA DE JOS” UNIVERSITY OF GALATI. FASCICLE IX. METALLURGY AND MATERIALS SCIENCE N0. 1 – 2009, ISSN 1453 – 083X

2009-01-01T00:00:00Z Gurău, Gheorghe Gurău, Carmela Tănase, Dinel http://arthra.ugal.ro/handle/20.500.14043/25645 2020-09-03T13:24:36Z 2009-01-01T00:00:00Z

Severe Plastic Deformed Pure Aluminum by Equal Channel Angular Pressing Gurău, Gheorghe; Gurău, Carmela; Tănase, Dinel Samples of an aluminum alloy were subjected to an equal channel angular pressing (ECAP) at room temperature for one pass. For the several specimens severe plastic deformation process was interrupted to observe the material flow. Also are studied the force variation in SPD process and hardness in different zones of the deformed sample. THE ANNALS OF “DUNAREA DE JOS” UNIVERSITY OF GALATI. FASCICLE IX. METALLURGY AND MATERIALS SCIENCE N0. 1 – 2009, ISSN 1453 – 083X

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