Physico-chemical and mechanical properties of Ti3SiC2-based materials elaborated from SiC/Ti by reactive spark plasma sintering

Abstract

In this paper, the synthesis of Ti 3 SiC 2 from SiC/Ti powder using reactive spark plasma sintering (R-SPS) in the temperature range of 1300-1400 ℃ is reported. The results show that the purity of Ti 3 SiC 2 is improved up to 75 wt% when the holding time is increased from 10 to 20 min at 1400 ℃. The thermodynamic and experimental results indicate that Ti 3 SiC 2 formation takes place via the reaction of a pre-formed TiC phase with the silicides, formed from the eutectic compositions. Detailed analysis of mechanical behaviour indicates that samples with higher percentage of secondary phases exhibit higher microhardness and better resistance compared to the near single phase Ti 3 SiC 2 .

High‐strength TiB2‐B4C composite ceramics sintered by spark plasma sintering

“…At present, the sintering methods of fabricating ceramics and composite materials mainly include HP, pressureless sintering, SPS, reaction sintering, etc 7,36–40 . SPS is an innovative sintering technique, which is based on the Joule heating process 1 .…”

“…Boron carbide (B 4 C) holds conspicuous physicochemical properties, such as high melting point (2350 • C), high Young's modulus (450-470 GPa), high hardness (35)(36)(37)(38)(39)(40)(41)(42)(43), low density (2.52 g/cm 3 ), good resistance oppose oxidation and corrosion, excellent thermal conductivity and good wear resistance. Accordingly, B 4 C is widely used in aerospace bulletproof armor plates, neutron absorbers in the nuclear field, and some engineering wear-resistant parts.…”

“…[26][27][28][29][30][31][32][33] At present, the sintering methods of fabricating ceramics and composite materials mainly include HP, pressureless sintering, SPS, reaction sintering, etc. 7,[36][37][38][39][40] SPS is an innovative sintering technique, which is based on the Joule heating process. 1 And it has unparalleled benefits in improving samples' densification and mechanical properties due to its fast heating rate and short holding time.…”

Highly conductive wear resistant Cu/Ti3SiC2(TiC/SiC) co-continuous composites via vacuum infiltration process

“…Turki et al [22] used SiC/Ti powders as raw material to synthesize Ti 3 SiC 2 by reactive spark plasma sintering (R-SPS) in the temperature range of 1300-1400 ℃. The increase of holding time was beneficial to the purity of Ti 3 SiC 2 , and the highest purity was 75%.…”

High Purity and High Density Ti3SiC2/Al2O3 Composites Were Prepared at High Temperature

“…However, their fracture toughness was low. At the present stage, some researchers have realized the in-situ synthesis of Ti 3 SiC 2 by adopting various methods such as thermal isostatic sintering, hot-pressed sintering, discharge plasma sintering, self-spreading sintering, and chemical vapor deposition synthesis [18][19][20][21][22]. Wang et al [23] used Al 2 O 3 , TiC, and Si as the raw materials and synthesized Ti 3 SiC 2 /Al 2 O 3 composites via in-situ reaction using spark plasma sintering at 1300 °C.…”