Essays about: "Coercivity"

Showing result 1 - 5 of 10 essays containing the word Coercivity.

  1. 1. Investigation of Inverse Magnetostriction inCobalt Films and Nanowires

    University essay from Uppsala universitet/Molekyl- och kondenserade materiens fysik

    Author : Ahmad Montaser Lababidi; [2020]
    Keywords : ;

    Abstract : In this thesis, a study of the inverse magnetostriction (the Villari effect) of Co nanowires and films is presented. The main objective was to investigate the stability of the Co nanowires’ magnetic properties, i.e. READ MORE

  2. 2. 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

  3. 3. Characterizing magnetic susceptibility and remanent magnetization of magnetite and hematite rich drill-core samples at Blötberget

    University essay from Uppsala universitet/Geofysik

    Author : Andreas Bjork; [2018]
    Keywords : Verwey; Morin; Curie; Néel; magnetite; hematite; alteration; iron-ore; quality control; kappabridge; hysteresis; susceptibility; anisotropy; Verwey; Morin; Curie; Néel; magnetit; hematit; oxidation; järnmalm; kvalitetskontroll; kappabridge; hysteresis; susceptibilitet; anisotropi;

    Abstract : Laboratory magnetic measurements are used to develop a methodology to characterize the Kiruna-type Rare Earth Elements (REE) bearing apatite iron-oxide deposits at Blötberget in central Sweden. This high-grade ore deposit is known to have sharp boundaries between lens shaped main ore bodies of magnetite-rich ore, and a complex hematite-rich ore associated with pegmatites and skarn formation. READ MORE

  4. 4. Ageing tests of cemented carbide powders : An investigation for increased quality of metal cutting inserts

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Eric Rösth; [2018]
    Keywords : cemented carbide; ageing; PEG; water absorption; sintering; DEK; DMK; coercivity; saturation magnetization; Hårdmetall; åldring;

    Abstract : In this study, the ageing effects on powder used for cemented carbide insert production are examined. Ageing is throughout this study, defined as the time dependent change of the magnetic properties: coercive field strength and saturation magnetization. READ MORE

  5. 5. Microstructure investigations of WC-Co cemented carbide containing Eta-phase and Cr

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Sofia Tran; [2018]
    Keywords : Cemented carbide; Eta-phase; Chromium; Material characterization;

    Abstract : Cemented carbide containing sub carbide phases, M6C and M12C, known as eta-phase, increases the lifetime milling cutters due to increased resistance to comb cracks. When milling, the inserts much sustain high temperatures, meaning edgeline toughness and thermal fatigue resistance are needed. READ MORE