Accession Number:

AD0408443

Title:

THE DETERMINATION OF BIAXIAL ORIENTATION BY X-RAY DIFFRACTOMETRY

Descriptive Note:

Corporate Author:

MASSACHUSETTS UNIV AMHERST POLYMER RESEARCH INST

Personal Author(s):

Report Date:

1962-09-10

Pagination or Media Count:

41.0

Abstract:

The state of biaxial orientation of crystallites of a polycrystalline polymer may be determined by measuring the x-ray diffracted intensity from particular crystal planes at a fixed Bragg angle as a function of the azimuthal diffracted angle and of the sample tilt angle. The orientation distribution may be expressed in terms of two dimensional pole-figure projections or in terms of biaxial orientation functions. Geometric relations governing the determination of such pole figures are stated, and a computer program is presented for their calculation. Correction factors for absorption, polarization and incoherent scattering are included in the program.

Subject Categories:

  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE