Publikasjoner og ansvarsområder
The effect of heating power on impurity formation and transport during the holding phase in a Bridgman furnace for directional solidification of multi-crystalline silicon
Oxygen and carbon are the most common impurities in multi-crystalline silicon. The general mechanism for formation and transport of O and C in the solidification furnace is as follows: oxygen from the silica crucible comes into the melt and combines with a silicon atom and evaporates at the gas/melt...
SPH based modelling of oxide and oxide film formation in gravity die castings
Gravity die casting is an important casting process which has the capability of making complicated, high-integrity components for e.g. the automotive industry. Oxides and oxide films formed during filling affect the cast product quality. The Smoothed particle hydrodynamics (SPH) method is particular...
Modelling of micro- and macrosegregation for industrial multicomponent aluminium alloys
Realistic predictions of macrosegregation formation during casting of aluminium alloys requires an accurate modeling of solute microsegregation accounting for multicomponent phase diagrams and secondary phase formation. In the present work, the stand alone Alstruc model, a microsegregation model for...
Macrosegregation modelling of DC-casting including grain motion and surface exudation
Modelling of Micro- and Macrosegregation in Multicomponent Aluminium Alloys Accounting for Secondary Phase Formation
Tensile properties and hot-tearing tendencies of 3xxx alloys
A set-up for tensile testing in the mushy zone allowing for studies of semi-solid mechanical behavior is available at SINTEF. A hot-tearing experimental set-up has recently been developed allowing for investigation of the hot-tearing susceptibility of industrial aluminium alloys and effects of e.g. ...
Assessment of the impact of macrosegregation on the hot-tearing tendency
Modeling of De-cohesion and the Initiation of Hot Tearing in Coherent Mushy Zones of Metallic Alloys
Thermal and mechanical analysis of directionally solidified silicon ingots in silica and silicon nitride crucibles
Silicon nitride is a promising crucible material for directional solidification of multi-crystalline silicon ingots. In contrast to standard quartz crucibles, which can only be used once, crucibles made of silicon nitride have the potential of being used several times and thereby reduce production c...