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Evaluation of seals and lubricants used on the Long Duration Exposure Facility. Report, October 1989-December 1993

Dursch, H.W. ; Keough, B.K. ; Pippin, H.G.

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Título:
Evaluation of seals and lubricants used on the Long Duration Exposure Facility. Report, October 1989-December 1993
Autor: Dursch, H.W. ; Keough, B.K. ; Pippin, H.G.
Assuntos: DOCUMENT TYPES ; ELEMENTS ; EROSION ; LUBRICANTS ; MATERIALS SCIENCE ; METEOROIDS ; NONMETALS ; OXYGEN ; PHYSICAL RADIATION EFFECTS ; PROGRESS REPORT ; RADIATION EFFECTS ; RADIATIONS ; SEALS ; SOLAR RADIATION ; STELLAR RADIATION 360605 -- Materials-- Radiation Effects
Notas: N-94-37614; NASA-CR--4604; NAS--1.26:4604
None
Descrição: This report described results from testing and analysis of seals and lubricants subsequent to the 69-month low-earth-orbit (LEO) exposure on the Long Duration Exposure Facility (LDEF). Results show that if the materials were shielded from exposure to LDEF's external environment, the 69-month exposure to LEO resulted in minimal changes to material properties. However, if the materials were exposed to LDEF's exterior environments (atomic oxygen, solar radiation, meteoroids, and/or space debris), a variety of events occurred, ranging from no material change, to changes in properties, to significant erosion of the material.
Editor: United States
Data de criação/publicação: 1994
Idioma: Inglês

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