TKSN-400, instrument description
TKSN 400 is a high resolution two-axis diffractometer optimized for investigation of internal stresses in polycrystalline materials. Due to its equipment, the instrument is dedicated especially for thermo-mechanical testing of materials, i.e. to study the deformation and transformation mechanisms of modern types of newly developed materials. Neutron diffraction performed in situ upon external loads, brings a wide range of valuable structural and sub-structural parameters of the studied material which is easy to correlate with parameters of external loads.
Instrumental parameters
| Monochromator | horizontally and vertically focusing, elastically bent Si single crystals |
| Wavelength | 1 Å ≤ λ ≤ 3.7 Å |
|
Neutron flux at the sample position |
105 n cm2 s-1 at λ=2.3 Å |
| Angular range | 25o< 2θ < 90o |
| Resolution | 2 10-3 ≤ Δd/d ≤ 3 10-3 |
Equipment
- Deformation machine for uni-axial loading (tension, pressure) ± 20 kN
- Resistant heating (T < 1200o C)
- Hot-air heating (T < 300o C)
- Miniature deformation machine for uni-axial loading (tension, pressure) ± 10 kN
- Eulerian cradle: inner diameter of 400 mm, 0o < χ < 160o, 0o < φ < 360o
- Deformation machine for bending loading, maximum cycling frequency of 27 Hz
hk9-rig-scheme
hk9-rig
hk9-sample
hk9-small-rig