SILICA FIBER FORMING AND CORE-SHEATH COMPOSITE FIBER DEVELOPMENT,
Abstract
Improvements in the argon atmosphere for tungsten bushings resulted in higher tensile strength with individual fibers exhibiting strengths of 500,000 psi. Strength values of fibers sampled over a 2-hour continuous drawing period were scattered and inconclusive. Fiberization was completely successful in argon but not in helium under any condition of temperature and pulling speed. Studies of bushing orifice diameter showed the minimum size for successful fiber forming to be 0.060 in. Residual fused quartz remaining in the tungsten bushing caused rupture of the bushing upon cooling to room temperature. Fiber diameters for present forming conditions ave9aged close to 0.00l in. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1963
- Accession Number
- AD0421947
Entities
People
- R. B. Vidanoff