Szymańska-Czaja, Maria
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Item type:Article, Access status: Open Access , Przegląd metod oceny właściwości geometrycznych odpadowych surowców mineralnych(2007) Szymańska-Czaja, MariaGeometrical properties of grained solid materials describe such parameters as grain size, size distribution curve, grain shape, specific surface, porosity etc. For specifying them in laboratory practice a several different method currently are used. Each method based on different physical phenomena of the material. This cause a diversity of the results, what is inconvenient in introducing to the technological processes applying fine-grained row materials. The paper presents ability assessment of geometrical properties of fine-grain materials investigated in recent years, based on several research results and practical observations unambiguous and multi-conditioned relations between separate geometrical properties.Item type:Article, Access status: Open Access , Składanie rozkładów wielkości ziaren otrzymanych z różnych metod pomiarowych(2006) Peszko, Barbara; Niedoba, Tomasz; Szymańska-Czaja, MariaThe methods of determination of grain compositions have limited measurement range and in many domains of industry, the necessity of conducting material grain analysis of sizes being outside the working range of certain method. For example, the grain composition analysis of majority of rock materials and also products being manufactured synthetically as abrasive powders needs to be conducted for the grain sizes from millimeter part (sieve analysis) to a few micrometers (sedimentation analysis) or even below this limit. Thus, there is a need for relevant method of one sort of data conversion to second one. This paper presents the analysis of results recalculation from two various methods of size analysis and how can they be transformed and connected to create one associative size distribution function, by means of relatively simple experimental and calculative techniques.Item type:Doctoral Dissertation, Access status: Metadata only , Zależność powierzchni właściwej od innych własności geometrycznych materiałów drobno uziarnionych(Data obrony: 1997) Szymańska-Czaja, Maria