Analysis of potassium bubble inclusions in sintered tungsten wires

Adél Len, Péter Harmat, Gerard Pépy, László Rosta, Peter Schade

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The tungsten wire used as incandescent coils in light sources requires extreme high-temperature creep resistance. After uniaxial thermomechanical treatment it fulfills these requirements. The heat treatment of the wires causes the spheroidisation of the elongated potassium filled bubbles with vanishing anisotropy in the small angle scattering patterns. The tungsten wires from different stages of the heat treatment were measured by small-angle neutron scattering (SANS). We have followed the morphology changes of the potassium bubble inclusions inside the tungsten matrix.

Original languageEnglish
Pages (from-to)621-623
Number of pages3
JournalJournal of Applied Crystallography
Volume36
Issue number3 I
DOIs
Publication statusPublished - Jun 24 2003

Keywords

  • Anisotropic SANS
  • Sintered materials

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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