This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Multi-Layer Insulation Fabrication and Resistance on Blanket Surface
Technical Paper
2013-01-2076
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Multi-Layer Insulation (MLI) is the thermal insulation typically used in spacecraft or any other devices that are exposed to both extreme heat and cold. MLI blankets work to protect delicate internal and external applications from UV radiation, atomic oxygen, and mechanical stresses by using Teflon coated fiberglass cloth. The layers are usually made of a film made out of polyester or polyimide with vapor deposited layers of aluminum on one or both sides of the film to form reflector layers. These reflectors are separated by materials with low thermal conductivity. All the layers simply protect the system by preventing excessive heat loss from inner components and excessive heating from outer sources.
Typically, MLI blankets are divided into a cover or outer layer, a reflector, a separator layer, an inner layer, and it has hardware installed to pass electrical charge from the surface of the blanket. As the roles of each layer differ, materials that fit the role are used to fabricate specific layers.
In this paper we will discuss an issue of passing conductivity on blankets, passing conductivity between hardware installed on the surface of the blankets, and alternate materials to make MLI blankets.
Authors
Citation
Massoudi, A., "Multi-Layer Insulation Fabrication and Resistance on Blanket Surface," SAE Technical Paper 2013-01-2076, 2013, https://doi.org/10.4271/2013-01-2076.Also In
References
- Gilmore , David G. Spacecraft Thermal Control Handbook , Volume I: Fundamental Technologies El Segundo, CA The Aerospace Press 2001
- ASTM Standard D257-07 Standard Test Methods for DC Resistance or Conductance of Insulating Materials ASTM International West Conshohocken, PA 10.1520/D0257-07 www.astm.org
- Karam , Robert Satellite Thermal Control for Systems Engineers Reston, VA American Institute of Aeronautics and Astronautics 1998
- Fortescue , P. , Stark , J. & Swinerd , G. Spacecraft Systems Engineering 3rd West Sussex, England Wiley 2003