| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Kalabukhov, S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2017Effect of grain size on the static and dynamic mechanical properties of magnesium aluminate spinel (MgAl2O4)citations
- 2017Low temperature fabrication of transparent magnesium aluiminate spinel by high pressure spark plasma sinteringcitations
- 2016Spark plasma sintering of Ti1-xAlxN nano-powders synthesized by high-energy ball millingcitations
- 2014High-pressure spark plasma sintering (SPS) of transparent polycrystalline magnesium aluminate spinel (PMAS)citations
- 2014Mechanical, thermal and optical properties of the SPS-processed polycrystalline Nd:YAGcitations
Places of action
| Organizations | Location | People |
|---|
article
Spark plasma sintering of Ti1-xAlxN nano-powders synthesized by high-energy ball milling
Abstract
<p>The present study focused on the fabrication of bulk materials from Ti<sub>1-x</sub>Al<sub>x</sub>N nano-powders using a spark plasma sintering (SPS) apparatus. Super-saturated Ti<sub>1-x</sub>Al<sub>x</sub>N solid solutions containing differing fractions of AlN (10, 20, 30 and 50 mol%) were synthesized by high-energy ball milling (HEBM) of pure nitrides. The complete dissolution of AlN in TiN was achieved after 100 h of milling. The milled powders were characterized by X-ray diffraction, scanning electron microscopy, energy-filtered transmission electron microscopy spectra imaging and energy dispersive X-ray spectroscopy. The crystalline size of the mechanically alloyed powders after 100 h of milling was about 12-14 nm. Ti<sub>1-x</sub>Al<sub>x</sub>N powders of various compositions were sintered by SPS under pressure of 63 MPa at 1673 K. Maximal hardness and bending strength values (610 MPa and 18.6 GPa, respectively) were obtained for composites containing 20 mol%AlN. Powder with 20% mole%AlN was consolidated under pressure of 500 MPa in the 1273-1423K temperature range by high pressure SPS (HPSPS). A fully dense nano-structured specimen, processed at 1423 K, displayed a Young modulus of 420 GPa, hardness of 20.5 GPa, bending strength of 670 MPa and fracture toughness of 7.1 MPa m<sup>0.5</sup>.</p>