Investigation Into Radiation-Induced Compaction of Zerodur (trademark)

Technical Report · Fri Mar 01 00:00:00 EST 1996

OSTI ID:236817

Edwards, D L; Herren, K; Hayden, M; Mcdonald, K; Sims, J A; Semmel, C L

Zerodur is a low coefficient of thermal expansion glass-ceramic material. This property makes Zerodur an excellent material for high precision optical substrates. Functioning as a high precision optical substrate, a material must be dimensionally stable in the system operating environment. Published data indicate that Zerodur is dimensionally unstable when exposed to large doses of ionizing radiation. The dimensional instability is discussed as an increase in Zerodur density. This increase in density is described as a compaction. Experimental data showing proton-induced compaction of Zerodur is presented. The dependence of compaction on proton dose was determined to be a power law relationship.

• Research Organization: National Aeronautics and Space Administration, Huntsville, AL (United States). George C. Marshall Space Flight Center
• OSTI ID: 236817
• Report Number(s): N-96-23147; NASA-TM-108505; NAS-1.15:108505; NIPS-96-39655; TRN: 9623147
• Resource Relation: Other Information: PBD: Mar 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
PHYSICAL RADIATION EFFECTS
GLASS
COMPACTIFICATION