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NASA NTRS ยท 19680000214

Reducing bubbles in glass coatings improves electrical breakdown strength

Abstract

Helium reduces bubbles in glass coatings of accelerator grids for ion thrustors. Fusing the coating in a helium atmosphere creates helium bubbles in the glass. In an argon atmosphere, entrapped helium diffuses out of the glass and the bubbles collapse. The resultant coating has a substantially enhanced electrical breakdown strength.

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Banks, B.. 1968-06-01. Reducing bubbles in glass coatings improves electrical breakdown strength. https://ntrs.nasa.gov/citations/19680000214

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