Debye-Scherrer diffraction measurements for the examination of the texture of rolled sheets

Продукт No: P2542701

Principle

A polycrystalline, cubic face-centered crystallizing copper powder sample and a thin copper sheet are separately irradiated with the radiation from a Roentgen tube with a copper anode. A Geiger-Mueller counter tube is automatically swivelled to detect the radiation that is constructively reflected from the various lattice planes of the crystallites. The Bragg diagrams are automatically recorded. The evaluation allows the Bragg reflexes to be assigned to the individual lattice planes. In contrast to the powder sample, the rolled thin sheet gives a spectrum showing an alignment of the crystallites (rolled texture), that is made even more complete by heating the sheet.

Tasks

  1. Record the intensity of the Cu X-rays back scattered by a cubic crystallizing copper powder sample as a function of the scattering angle.
  2. Assign the Bragg reflexes to the individual lattice planes.
  3. Record the Bragg spectrum of a thin sheet of copper.
  4. Repeat the measurements made in Task 3 after the sheet of copper has been subjected to annealing.

What you can learn about

  • Crystal lattices
  • Crystal systems
  • Bravais-lattice
  • Reciprocal lattice
  • Miller indices
  • Structure factor
  • Atomic scattering factor
  • Bragg scattering
  • Characteristic X-rays
  • Monochromatization of X-rays
  • Fiber textures
  • Sheet textures
  • Annealing texture
  • Recrystallization



Перечень материалов (вы́писка) Продукт Количество
XR 4.0 expert unit, X-ray unit, 35 kV 09057-99 1
XR 4.0 X-ray Plug-in Cu tube 09057-51 1
XR 4.0 X-ray goniometer 09057-10 1
XR 4.0 Software measure X-ray 14414-61 1
Geiger-Mueller counter tube, type B, BNC cable 50 cm 09005-00 1
XR 4.0 X-ray LiF crystal, mounted 09056-05 1
XR 4.0 X-ray Universal crystal holder for X-ray unit 09058-02 1
XR 4.0 X-ray Diaphragm tube w. nickel foil 09056-03 1
XR 4.0 X-ray Diaphragm tube d = 2 mm 09057-02 1
XR 4.0 X-ray sample holder for powder samples (diffractometry) 09058-09 1
Copper foil, 0.1 mm, 100 g 30117-10 1
Data cable USB, plug type A/B, 1.8 m 14608-00 1
Copper, powder 100 g 30119-10 1
Vaseline 100 g 30238-10 1
Crucible tongs, 200 mm, stainless steel 33600-00 1
Microspoon, steel 33393-00 1

Литература по данной статье

Название Продукт Язык
Handbuch Lehrerversuche mit Röntgenstrahlung für die XR 4.0 expert unit, TESS expert Physik 01200-01 DEU
TESS expert Physics Handbook X-ray Experiments for XR 4.0 expert unit 01200-02 ENG

Назад к перечню

Продукт No: P2542701

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