Local Structure Study of Ni in Ni-Zn Alloy Coating on Steel by X-ray Absorption Spectroscopy

X선 흡수 분광법을 이용한 Ni-Zn 도금 강판에서의 Ni의 국부 구조에 관한 연구

  • Lee, Do-Hyung (Advanced Analytical Laboratory, Research Institute of Industrial Science and Technology)
  • 이도형 (포항산업과학연구원 특성분석팀)
  • Received : 1997.12.15
  • Published : 1998.06.01

Abstract

X-ray absorption fine structure spectroscopic studies at the Ni K-edge have been performed for the Ni-Zn alloy coating layer on steel. The Ni-Zn interatomic distances and Debye-Waller factors were determined by fitting the experimental data with the theoretical spectra in the temperature range of 80 to 300K. The average Ni-Zn interatomic distance was found to be $2.557{\AA}$ and the variation of the Ni-Zn interatomic distance with temperature in this range was insignificant. From the comparison of the Ni-Zn interatomic distance with the nearest neighbor distance of pure Zn lattice it has been suggested that there is an apparent contraction around Ni atom.