High-temperature dust collision experiment
Coagulation experiments shall be extended to temperatures
in the range 300-1,300 K and to mineral phases (forsterite,
enstatite, FeNi metal, Ca,Al minerals, Fe sulfides, and
Fe-bearing olivine/pyroxene) that are expected from
theoretical and observational (both astrophysical and
cosmochemical) constraints in protoplanetary disks. In
particular, the collision and adhesion behavior at high
temperatures and dust/gas ratios (sintering, eutectic
melting between immiscible phases) could be a key mechanism
to trigger agglomerate growth beyond previously established
critical sizes (~ dm) and collision velocities (a few m/s). In addition to
that, the importance of sintering for sticking at high
collision velocities shall be investigated.
Principle Investigators
Prof. Dr. Jürgen Blum
PD Dr. Mario Trieloff
