Sökning: "alpha Al2O3"

Hittade 2 uppsatser innehållade orden alpha Al2O3.

1. 1. Exploratory study of the interactions between textured alumina coatings and steel

   Master-uppsats, KTH/Materialvetenskap

   Författare :Jonas Svantesson; [2018]
   Nyckelord :alpha Al2O3; diffusion couple; chemical wear; crater wear; DICTRA;

   Sammanfattning : The crater wear of alumina coated WC-Co cutting tools is thought to be influenced by the chemical reactions between the coating and the workpiece material. Three different crystal orientations ((001), (012), and (100) of alpha alumina CVD coatings are examined in combination with four workpiece materials of steel to establish what reactions are present, and the extent of diffusion. LÄS MER

3. 2. Controlled interlayer between titanium carbon-nitride and aluminiumoxide

   Uppsats för yrkesexamina på avancerad nivå, Institutionen för materialkemi

   Författare :Sara Munktell von Fieandt; [2011]
   Nyckelord :Aluminium oxide; titanium oxide; titanium carbon-nitride; Chemical Vapour Deposition; Atomic Layer Deposition;

   Sammanfattning : In the industry of metal cutting tools the conditions are extreme; the temperature can vary thousand degrees rapidly and the pressure can be tremendously high. To survive this kind of stress the cutting tool must be both hard and tough. In order to obtain these properties different coatings are used on a base of cemented carbide, WC-Co. LÄS MER