Wydział Mechaniczny / Faculty of Mechanical Engineering / W1
Stały URI zbioruhttp://hdl.handle.net/11652/1
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Pozycja Polishing of Hard Machining Semiconductor Materials Made of Silicon Carbide(Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki Łódzkiej, 2011) Gołąbczak, MarcinIn the paper the application of silicon carbide (SiC) in electronics especially for production of p-i-n diodes have been shown. Also the technology of honing process of samples made of silicon carbide using grinding, lapping and polishing method has been presented. Finally the process of machining and the stand for surface preparation, selected investigation results concerning assessment of geometrical microstructure and morphology of SiC samples surface layer after machining process have been depicted.Pozycja Mechanical Properties of the Mineral Cast Material at the Macro and Micro Level.(Lodz University of Technology. Faculty of Mechanical Engineering. Department Division of Dynamics., 2016) Kępczak, Norbert; Pawłowski, Witold; Klich, Marek; Kaczmarek, ŁukaszThe paper presents the results of experimental examination of the mechanical properties at micro and macro scale of the mineral cast composites. Studies have been conducted to verify the literature data about the value of tensile strength, compressive strength and Young’s modulus. Additionally as a part of this research Poisson’s ratio was determined, which has not been encountered in the current literature as deeply as in this work. In the next step, a scanning electron microscopy (SEM) studies have been carried out to analyze fractures of the samples after tensile and compression tests. These results were correlated with mechanical properties such as tensile strength and compressive strength, respectively. During fracture investigations, the contact interface between concrete filler and polymer was studied. As a result of this research the mechanism of deformation was formulated.Pozycja Effect of Cr and V alloy additions on the microstructure and mechanical properties of AM60 magnesium alloy(2014) Rapiejko, Cezary; Pisarek, Bogusław; Pacyniak, TadeuszThe paper presents the results of the investigation of the effect of Cr and/or V alloy additions on the microstructure and mechanical properties of the magnesium AM60 alloy. The examinations are performed within the frames of a project aiming at the elaboration of an experimental and industrial technology of producing constructively complex elements of machines and devices made of magnesium alloys with the method of investment casting. It has been proven that small numbers of Cr and V alloy additions improve the strength properties: Rm, A%, and the hardness HB of the obtained casts. The experimental casts were made in ceramic molds.