A study on in-situ synthesis of TiB2–SiC ceramic composites by reactive hot pressing

Cathodic Using of ZrB<sub>2</sub>-<i>α</i>SiC and TiB<sub>2</sub>-<i>α</i>SiC for PEM Electrolysis and Water Electrolysis at Low Temperature

“…The patterns also confirm the resistance of reagents at the temperature higher than 1800˚C during high pressure HP sintering. This result has been confirmed by Zhao et al [19].…”

Microstructural development and mechanical properties of hot pressed SiC reinforced TiB2 based composite

“…Therefore, for eliminating the oxide impurities, preventing the grain growth and improving the mechanical properties, the addition of sintering aids such as SiC remain as one of the alternatives to overcome the low sinterability and enhance the densification rates of these ceramics. Besides, the addition of appropriate amounts of SiC in TiB 2 matrix significantly augments the fracture toughness, as well as high temperature oxidation resistance [32][33][34][35][36][37][38]. However, according to the authors' knowledge, there are limited reports concerning the influence of SiC additive on microstructure and concomitantly the various mechanical properties such as toughness and hardness of TiB 2 -based systems.…”

Directionally Solidified Boride and Carbide Eutectic Ceramics

“…6 In addition, carbides such as tungsten carbide have extreme high strength and wear resistance, which are crucial requirements for applications such as cutting tools and drilling parts. [14][15][16][17][18][19] For example, TiB 2 and ZrB 2 have been added to SiC to form TiB 2 /SiC and ZrB 2 /SiC composites by sintering or reactive hot pressing to improve fracture strength over monolithic SiC. 1 Composites of these classes of materials have been developed to improve microstructure-engineered properties such as fracture toughness.…”

“…[7][8][9][10][11][12][13] However, as is the case for many monolithic ceramics, borides and carbides suffer from their intrinsic brittleness, for example, low fracture toughness (2.4-3.5 MPaÁm 1/2 ) in ZrB 2 , 6 which results in low thermal shock resistance. [14][15][16][17] Furthermore, SiC can be added to WC to form WC/SiC composites by hot pressing to improve fracture toughness and sinterability over monolithic WC. [14][15][16][17][18][19] For example, TiB 2 and ZrB 2 have been added to SiC to form TiB 2 /SiC and ZrB 2 /SiC composites by sintering or reactive hot pressing to improve fracture strength over monolithic SiC.…”

“…[14][15][16][17][18][19] For example, TiB 2 and ZrB 2 have been added to SiC to form TiB 2 /SiC and ZrB 2 /SiC composites by sintering or reactive hot pressing to improve fracture strength over monolithic SiC. [14][15][16][17][18][19] As another approach, metals are added to carbides such as WC to form metal-carbide composites to improve sintering kinetics and fracture toughness over monolithic WC. 18,19 However, sintering and hot pressing of the TiB 2 / SiC, ZrB 2 /SiC, and WC/SiC composites still require high temperature (≥1600°C).…”