TY - JOUR N2 - The purpose of this paper was to search the relations between the structure of the compressed expanded graphite – polymer – turbostratic carbon composites on successive stages of technological treatment and parameters describing the acoustic emission phenomena in these materials. The acoustic emission method can be used for measurements of changes in the structure and many different properties of materials. These investigations are a continuation of our earlier studies concerning physical, mechanical and chemical properties of porous composites created on the basis of a compressed expanded graphite matrix, obtained after successive technological procedures of impregnation, polymerization and carbonization of polyfurfuryl alcohol. The aim of this work was to investigate materials obtained at different levels of technological processing, thus with different densities, porosity, physical and chemical properties, by using the acoustic emission method. In compressed expanded graphite composites structures one can differentiate two basic directions: perpendicular to the bedding plane of graphite flakes and parallel to this one. The all presented results were obtained for the uniaxial strain applied in the direction perpendicular to the bedding plane of the composite structure. Analysis of acoustic emission parameters provides information on physical and chemical processes in these materials. L1 - http://www.czasopisma.pan.pl/Content/108006/AMM-2018-3-26-Berdowski.pdf L2 - http://www.czasopisma.pan.pl/Content/108006 PY - 2018 IS - No 3 EP - 1293 DO - 10.24425/123803 KW - Compressed expanded graphite KW - Polyfurfuryl alcohol KW - Turbostratic carbon KW - acoustic emission KW - Composite membrane A1 - Berdowska, A. A1 - Berdowski, J. A1 - Aubry, F. PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 63 DA - 2018.10.10 T1 - Study of Graphite – Polymer – Turbostratic Carbon Composites by Acoustic Emission Method at Perpendicular Geometry SP - 1287 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/108006 T2 - Archives of Metallurgy and Materials ER -