Sökning: "alfa-Al2O3"
Hittade 4 avhandlingar innehållade ordet alfa-Al2O3.
1. Microstructure and Wear of CVD Coatings used in Metal Cutting Applications
Sammanfattning : This thesis is concerned with the microstructural characterisation of wear resistant Al2O3 and Ti(C,N)coatings produced by chemical vapour deposition on cemented carbide cutting tools. The investigation focuses on the effect of deposition conditions on the microstructure and the microstructural evolution of the coatings during heat-treatments and metal cutting. LÄS MER
2. Alumina (Al2O3) and Oxidation of Aluminium. A First-Principles Study
Sammanfattning : Aluminum oxides and oxidation mechanisms are topics for extensive research. One good reason for this is their wide range of applications. For instance, the .alfa. LÄS MER
3. Monolith Reactors in Three-Phase Processes
Sammanfattning : The use of monoliths in chemical processes has been studied with the emphasis on liquid-phase hydrogenations. A monolithic catalyst consists of many narrow, parallel channels with catalytically active species either incorporated into the wall itself or into a layer of a porous oxide deposited on the wall (a washcoat). LÄS MER
4. Aluminide Diffusion Coatings for Ni Based Superalloys. Coating and Oxide Microstructure
Sammanfattning : This thesis reports on investigations of high temperature oxidation resistant aluminide diffusion coatings for Ni based superalloys. Such coatings basically consist of a .BETA.-NiAl layer at the surface of the . LÄS MER