Essays about: "magnetisk kornstorlek"

Found 4 essays containing the words magnetisk kornstorlek.

  1. 1. Reconstructing Past Climate by Grain Size and Magnetic Susceptibility Analysis of Belgium Loess From the Late Quaternary

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Susanna Åberg; [2022]
    Keywords : aeolian dust; Romont; Europe; true loess line; past climate reconstruction; vindtransporterat stoft; Romont; Europa; true loess line; rekonstruktion av tidigare klimat;

    Abstract : Aeolian dust that gets deposited builds up loess sequences that cover 10% of the Earth's continents. Such sequences can be several metres thick with material deposited over thousands of years, and therefore act like archives of past climates. READ MORE

  3. 2. The Effect of Alternative Tungsten Carbide Grain Size Distribution on Microstructure and Mechanical Properties in Cemented Carbides

    University essay from KTH/Materialvetenskap

    Author : Filip Ivarsson; [2022]
    Keywords : Cemented Carbides; WC Grain Size Distribution; Mechanical Properties; Microstructure Analysis; Hårdmetall; WC Kornstorleksfördelning; Mekaniska Egenskaper; Mikrostruktur Analys;

    Abstract : In the constant pursuit of better-performing cemented carbides, recent studies suggest that a combination of better hardness and toughness can be obtained by changing its WC grain size distribution. As the area is still rather unexplored, this  thesis  aims  to  broaden  the  knowledge  and  answer  whether mechanical properties can be changed by changing the WC grain size distribution, in the context of mining drill bit inserts. READ MORE

  4. 3. The Effect of Cooling Rate on Sintered Cemented Carbides

    University essay from KTH/Materialvetenskap

    Author : Lina Berglund; [2020]
    Keywords : Sintering; Cooling rate; Cemented Carbide; Sintering; Coercivity; Contiguity; Sintring; Kylhastighet; Hårdmetaller; Koercivitet; Kontiguitet;

    Abstract : Magnetic measurements are useful tools for quality control of cemented carbides. Previous work at Sandvik Mining and Rock Technology has shown that the coercivity increases with increased cooling rate during sintering for a specific grade. READ MORE

  5. 4. Magnetic grain-size analyses of Holocene sediments in the North Atlantic and Norwegian Sea : palaeoceanographic applications

    University essay from Lunds universitet/Geologiska institutionen

    Author : Torbjörn Wall; [2004]
    Keywords : magnetic grain-size; magnetic hysteresis loops; Reykjanes Ridge; Vøring plateau; North Atlantic; Norwegian Sea; deep ocean currents; Holocene; magnetisk kornstorlek; magnetiska hysteresis-lopar; Reykjanesryggen; Vøringplatån; Nordatlanten; Norska havet; djuphavsströmmar; Holocen; Earth and Environmental Sciences;

    Abstract : High-resolution magnetic hysteresis measurements were carried out on three sediment cores, one from the North Atlantic and two from the Norwegian Sea. These measurements can be used to reconstruct changes in magnetic grain-size. Physical grain-size has been interpreted as a proxy for bottom current intensity (McCave et al. READ MORE