Accession Number : AD0655077

Title :   PROPOSED METHOD OF DENSITY DETERMINATION FOR SOME INORGANIC FIBERS.

Descriptive Note : Technical rept. for Jun 65-Nov 66,

Corporate Author : AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Hanchak,S. J. ; Spain,R. G. ; Mahieu,W.

Report Date : MAY 1967

Pagination or Media Count : 19

Abstract : A method and preliminary apparatus are proposed for the rapid and accurate determination of inorganic fiber densities. Initial experiments with small glass chips gave a maximum deviation from the density of bulk glass of less than 0.1% with an average deviation of 0.02% for 10 determinations. In essence, the method proposed utilizes immersion of single fibers of short lengths in liquids comprised of a mixture of individual liquids of greater and lesser densities than the fibers. An average of the easily measured liquid densities in which the fiber slowly rises and falls is proposed as the fiber density. Improvements in the technique and apparatus to determine fiber density are presented and further refinements are suggested. Adequately reproducible results were collected for various measurements of glass and quartz fibers. (Author)

Descriptors :   (*REINFORCING MATERIALS, FIBERS), (*FIBERS, TEST METHODS), (*GLASS TEXTILES, DENSITY), (*QUARTZ, FIBERS), TEST EQUIPMENT, PHYSICAL PROPERTIES, LIQUIDS, ACCURACY

Subject Categories : Laminates and Composite Materials
      Textiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE