Search for dissertations about: "separation of inclusions"

Showing result 1 - 5 of 16 swedish dissertations containing the words separation of inclusions.

  1. 1. Structure Evolution during Phase Separation and Gelation of Biopolymer Mixtures

    Author : Niklas Lorén; Chalmers University of Technology; []
    Keywords : microstructure; gelatin maltodextrin; biopolymer mixtures; structure evolution; phase separation; stereology; confocal laser scanning microscopy; image analysis; spinodal decomposition; transmission electron microscopy; gelation;

    Abstract : This thesis focuses on the kinetics of phase separation and gelation in aqueous mixtures of gelatin and maltodextrin. The structure evolution of these mixtures at different length scales was recorded by confocal laser scanning microscopy (CLSM) and transmission electron microscopy (TEM). The microstructure was quantified by image analysis. READ MORE

  2. 2. A Study on the Population and Chemical Development of Non-Metallic Inclusions in the Tool-Steel Making Process

    Author : Nagendra Tripathi; KTH; []
    Keywords : Metallurgy; Inclusions; Industrial; Technology;

    Abstract : The present work was to study the population and chemicalcharacterization of the inclusions at different steps of thetool steel making process based on industrial trialexperiments. The inclusion populations were found to increasewith ladle age (number of heats ladle being used) beforealuminium deoxidation and before casting. READ MORE

  3. 3. Formation of oxide-inclusions by ladle glaze and a preliminary examination on the possibility of inclusion seperation by bubble floatation

    Author : Nagendra Tripathi; KTH; []
    Keywords : oxide inclusions; ladle metallurgy; ladle glaze; inclusion population; ladle age;

    Abstract : The present work was to study the role of ladle glaze as apotential supplier of inclusions to the steel melt during theladle refining process. In this study, the total number ofinclusions at the beginning and at the end of the ladletreatment process was found to be increasing with ladle age,which is the number of heats, the ladle being used. READ MORE

  4. 4. A study of solid and liquid inclusion separation at the steel-slag interface

    Author : Jenny Strandh; Pär Jönsson; Robert Eriksson; Keiji Nakajima; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Materials science; mathematical modeling; inclusion separation; tundish; ladle; slag; steel-slag interface; physical properties; Materialvetenskap; Materials science; Teknisk materialvetenskap;

    Abstract : This thesis work aimed to provide a better knowledge of inclusion behavior at the steel-slag interface. All results are based on mathematical modeling of liquid and solid inclusion separation to the slag. The model descriptions of the inclusion transfer are based on the equation of motion at the system. READ MORE

  5. 5. Three Dimensional Determinations of Inclusions in Ferroalloys and Steel Samples

    Author : Yanyan Bi; Andrey Karasev; Chris Pistorius; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Three dimensional; Ferroalloy; Inclusion; Spinel inclusion; T hermodynamic calculation; REM clusters; Formation mechanism; Statistical analysis; Maximum size;

    Abstract : As the requirements on material properties increase, there has been a demand on an additional knowledge on the effect of impurities in the ferroalloyson the steel cleanness. Thus, the number, morphology, size and composition of inclusions in sixdifferent ferroalloys (FeTi, FeNb, FeSi,SiMn, LC and HC FeCr) were investigatedin this study. READ MORE