The effects of lanthanum hexaboride (LaB6) nano-particles on the electrical, thermal, and mechanical properties copper-based nanocomposites (Cu-LaB6) produced using microwave sintering (MS) spark plasma (SPS) processes were investigated in this study. Nano LaB6 particles reduced electrical conductivity Cu matrix via MS SPS by 20% 13%, respectively. Cu-LaB6 had lower thermal than unreinforced Cu...

Abstract Achieving full densification of some ceramic materials, such as Y 2 O 3 , without sintering aids by spark plasma (SPS) is a great challenge when plastic deformation contributes limitedly to the yield stress material at an elevated temperature higher than applied pressure. Herein, we demonstrate that particle fracture and rearrangement effective strategy promote during pressure-assisted...

The fracture toughness and thermal conductivity of soda-lime glass were enhanced by an interfacial precipitation Ag. Large quantities silver nanoparticles (AgNPs) are formed on the surface subsurface layers Ag–Na ion exchanged powders during heat-treatment in H 2 for various times, fully densified subsequent spark plasma sintering (SPS). AgNPs with particle sizes above 50 nm mainly located near...

Abstract This paper firstly presents an experimental investigation of the effects heat treatment temperatures and atmosphere on tensile strength structure basalt fibers. The results show that fibers after in air (200–600 °C) have characteristics amorphous state due to oxidation Fe 2+ into 3+ . On contrary, vacuum induces crystallization reason is cations can act as network modifiers participate...

AA7075 aluminum alloy is widely used for several high-technology applications its high mechanical strength to weight ratio but still the subject of studies seeking a further increase in properties. A commercial powder used, either as-received or after ball-milling. Dense samples are prepared one step by Spark Plasma Sintering, at 550 °C with holding time 15 min and uniaxial pressure 100 MPa. No...

Metallic glasses exhibit unique combination of physical, chemical and mechanical properties due to their amorphous nature which lacks long range order and defects such as grain boundaries and dislocations [1,2]. In the past two decades, they have been rapidly developed for application in many fields. However, the disadvantages such as poor plasticity and limited dimensions hamper their large-sc...

We prepared binder-free monoliths of carbon nanohorns（CNHs）, hole-opened nanohorns （CNHoxs）, multi-walled nanotube（MWCNT）, and single-walled nanotube（SWCNT）using spark plasma sintering（SPS）method at 1800℃ 80 MPa in vacuum. The density the SPS-treated SWCNT is 1.8 g/cm3, which close to that graphite, while those CNHs, CNHoxs, MWCNT remained 1.1-1.3 g/cm3 even after SPS treatment. evaluated using...

The densification behavior, microstructure and mechanical properties of bulk TiB₂-based ceramic composites, fabricated using the spark plasma sintering (SPS) technique with elements of (Fe-Ni-Ti-Al) sinter-aid were investigated. Comparing the change of shrinkage displacement of pure TiB₂ and TiB₂-5 wt% (Fe-Ni-Ti-Al), the addition of elements Fe-Ni-Ti-Al into TiB₂ can facilitate sintering of the...

This study focuses on the fabrication and microstructural investigation of Cu–TiH2–C and Cu–Ti–C nanocomposites with different volume fractions (10% and 20%) of TiC. Two mixtures of powders were ball milled for 10 h, consequently consolidated by spark plasma sintering (SPS) at 900 and 1000 ◦C producing bulk materials with relative densities of 95–97%. The evolution process of TiC formation duri...