Stardust: Studies in microgravity of condensation and agglomeration of cosmic dust analogue

Physics – Condensed Matter – Materials Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Agglomeration, Astrophysics, Cosmic Dust, Interstellar Matter, Microgravity, Nucleation, Partial Pressure, Temperature Effects, Condensing, Materials Science, Parabolic Flight, Physical Chemistry, Solid State Physics, Vapor Phases

Scientific paper

A short description of the program Stardust whose goal is to study the formation and properties of high temperature particles and gases, including silicate and carbonaceous materials, that are of interest in astrophysics and planetary science, is given. The international program was carried out in microgravity conditions in parabolic flight. A description of the laboratory equipment, conceived to perform experimental tests in reduced gravity conditions, and which is based on the gas evaporation technique, is given. The gas evaporation technique utilizes one or more heated crucible to vaporize solids materials (SiO, Mg) in a low pressure of inert or reactive gas inside of a vacuum bell jar. The vapor pressures of the materials are controlled by the temperature of the crucibles. The temperature and pressure of inert gas are also controlled. By varying the vapor pressure relative to the gas temperature and pressure, the conditions for substantial grain condensation can be controlled and grain formation measured using light scattering techniques. Thus the partial pressure for grain condensation, can be measured as a function of temperature. The gas evaporation technique has the advantage that complex chemical systems can be studied by using multiple crucibles each containing solid source material. Experimental results and future trends are addressed.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Stardust: Studies in microgravity of condensation and agglomeration of cosmic dust analogue does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stardust: Studies in microgravity of condensation and agglomeration of cosmic dust analogue, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stardust: Studies in microgravity of condensation and agglomeration of cosmic dust analogue will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1206013

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.