Sökning: "Al203"

Hittade 2 avhandlingar innehållade ordet Al203.

1. 1. Is water a crucial factor in the oxidation of FeCrAl alloys?

   Författare :Helena Josefsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; alpha-Al203; oxidation kinetics; high temperatur corrosion; reactive elements; FeCrAl; vater vapour; transient alumina;

   Sammanfattning : FeCrAl alloys are much used at high temperatures because the formation of a dense and slow-growing alumina scale provides resistance towards oxidation and high temperature corrosion. While the FeCrAl alloys are primarily intended for temperatures above 950ºC, they are sometimes used at lower temperature, for example as supports in automotive catalysts. LÄS MER

3. 2. Growth, Characterization, and Thermal Stability of CeO2 Thin Films

   Författare :Sissel N. Jacobsen; David K. Fork; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Rare earth oxides are potentially useful materials in various optical electronic, and catalytic devices. The characteristics of such devices are strongly dependent on the interface structure of heterojunctions, hence engineering of the performance can be achieved through tailoring of the micro- and/ or surface structure. LÄS MER