| 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 |
|
Majumdar, Sanjib
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2019Kinetics of oxide scale growth on a (Ti, Mo)<sub>5</sub>Si<sub>3</sub> based oxidation resistant Mo-Ti-Si alloy at 900-1300<sup>∘</sup>Ccitations
- 2018Microstructure, thermo-physical, mechanical and wear properties of in-situ formed boron carbide -Zirconium diboride compositecitations
- 2018Competition between densification and microstructure development during spark plasma sintering of B4C–Eu2O3citations
- 2017Development and tribological properties of SiC fibre reinforced CrB2 compositecitations
Places of action
| Organizations | Location | People |
|---|
article
Microstructure, thermo-physical, mechanical and wear properties of in-situ formed boron carbide -Zirconium diboride composite
Abstract
<p>Microstructure, thermos-physical, mechanical and wear properties of in-situ formed B<sub>4</sub>C-ZrB<sub>2</sub> composite were investigated. Coefficient of thermal expansion, thermal diffusivity and electrical resistivity of the composite were measured at different temperatures up to 1000°C in inert atmosphere. Flexural strength was measured up to 900°C in air. Friction and wear properties have been studied at different loads under reciprocative sliding, using a counter body (ball) of cemented tungsten carbide (WC-Co) at ambient conditions. X-ray diffraction (XRD) and electron probe microanalysis (EPMA) confirmed the formation of ZrB<sub>2</sub> as the reaction product in the composite. Electrical resistivity was measured as 3.02 × 10<sup>-4</sup> Ω·m at 1000°C. Thermal conductivity measured at temperatures between 25°C and 1000°C was in the range of 8 to 10 W·(m-K)<sup>-1</sup>. Flexural strength of the composite decreased with increase in temperature and reached a value of 92 MPa at 900°C. The average value of coefficient of friction (COF) was measured as 0.15 at 20 N load and 10 Hz frequency. Increase of load from 5 N to 20 N resulted in decrease in COF from 0.24 to 0.15 at 10 Hz frequency. Specific wear rate data observed was of the order of 10<sup>-5</sup> mm<sup>3</sup>·(N-m)<sup>-1</sup>. Both abrasive and tribo-chemical reaction wear mechanisms were observed on the worn surface of flat and counter body materials. At higher loads (≥ 10 N) a tribo-chemical reaction wear mechanism was dominant.</p>