Particle adhesion to surfaces under vacuumThe release of glass beads and standard dust from aluminum and glass substrates under centrifugation (simulating atmospheric pressure, low vacuum, and high vacuum conditions) was measured, with application to the estimation of contaminant particle release during spacecraft launch. For particles in the 10-100 micron range, dust was found to adhere more strongly than glass beads in all the cases considered. For most of the cases, dust and glass beads adhered more strongly to glass than to aluminum at all pressures. The adhesion force for dust on glass at 10 torr was shown to be as small as the value for dust on aluminum.
Document ID
19880056538
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Barengoltz, Jack B. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)