Sökning: "Hard Metal"

Visar resultat 6 - 10 av 123 avhandlingar innehållade orden Hard Metal.

  1. 6. Cobalt in the hard metal production industry : exposure via inhalation and skin and the inflammatory response in human keratinocytes

    Författare :Maria Klasson; Eva Särndahl; Håkan Westberg; Magnus Lindberg; Alexander Persson; Kristina Jakobsson; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cobalt; cobalt chloride; skin; HaCaT; in vitro; cell viability; pro-inflammatory cytokines; NLRP3 inflammasome;

    Sammanfattning : Cobalt is a strong sensitizer and can cause contact allergy upon both direct contact or from airborne exposure on the skin. In the skin, keratinocytes are the first cells to come in contact with the metal and will react and respond to the danger by triggering an alarm system resulting in an inflammatory response in the skin. LÄS MER

  3. 7. Neutron scattering studies of hard metals

    Författare :Ahmet Bahadir Yildiz; Peter Hedström; Annika Borgenstam; Joakim Odqvist; Daniele Mari; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hard metals; cemented carbides; small angle neutron scattering; neutron diffraction; in-situ characterization; grain coarsening; phase separation; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : Since their discovery about 100 years ago, tools made of hard metals have been the enablers of development in various areas: from drilling subway lines for more sustainable cities to the machining of complex next-generation airplane engine parts for reduced CO2 emissions. An increase in properties of hard metals thus leads to efficient operations with shorter lead-time, less environmental footprint, and reduced cost. LÄS MER

  4. 8. Metal ions in life : towards accurate computer-aided studies ofprotein-ion interactions

    Författare :Emma Ahlstrand; Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biokemi; Biochemistry;

    Sammanfattning : The importance of ions in life sciences can not be overstated. The interaction betweenmetal ions and proteins is vital because it is involved in a variety of biological processes.The ions contribute to stability and function of proteins. Moreover, they are relevant indisease progression. LÄS MER

  5. 9. On Adhesion and Galling in Metal Forming

    Författare :Magnus Hanson; Sture Hogmark; Ulf Olofsson; Uppsala universitet; []
    Nyckelord :Engineering physics; adhesion; galling; dry sliding; stainless steel; vanadium nitride; metal forming; Teknisk fysik;

    Sammanfattning : Metal forming is widely used in the industry to produce cans, tubes, car chassis, rods, wires etc. Forming certain materials such as stainless steel, aluminium and titanium, is often difficult, and problems associated with transfer of work material to the tool material are frequent. LÄS MER

  7. 10. Cutting Edge Titanium-based CVD Hard Coatings

    Författare :Linus von Fieandt; Mats Boman; Ulf Jansson; Erik Lindahl; Tommy Larsson; Henrik Pedersen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CVD; Hard coatings; Ti C; N ; TiN;

    Sammanfattning : Modern tools for metal cutting applications, such as turning or milling, are typically improved with a thin protective coating. Despite being only a few microns thick, the coating can increase the lifetime of the tool by more than 100 times compared to an uncoated tool. Two different types of techniques are normally used to deposit the coatings, i. LÄS MER