Fabrication and mechanical properties of ZrO2–Al2O3–SiC(w) composites by oscillatory pressure sintering

Mechanical and tribological properties of SiC whisker‐reinforced SiC composites via oscillatory pressure sintering

“…If the interface bonding force was too strong (complete bonding), the composites would lack other materials to absorb the fracture energy and cause brittle fracture when fractured. On the other hand, if the interface bonding force was too weak, the SiC matrix could not smoothly transfer the external load it bears to SiCw, so the strength was obviously reduced 34 . Only with the appropriate interface bonding force, it can be guaranteed that the ceramic matrix composite exhibited a certain toughness.…”

“…On the other hand, if the interface bonding force was too weak, the SiC matrix could not smoothly transfer the external load it bears to SiCw, so the strength was obviously reduced. 34 Only with the appropriate interface bonding force, it can be guaranteed that the ceramic matrix composite exhibited a certain toughness. As shown in Figure 5, the SiCw was pulled out from the SiC matrix (indicated by the yellow arrow) and absorbed some fracture energy during the pulling out process.…”

Enhanced mechanical and tribological properties of oscillatory pressure sintered WC–GNPs composites

“…In recent years, a new sintering technique, named oscillatory pressure sintering (OPS), has been developed and used to prepare some oxide‐ and non‐oxide‐based ceramics 20 . − 26 It was reported that the introduced oscillatory pressure enhanced the dynamic grain rearrangement, plastic deformation, mass transportation, and pore removal, leading to the formation of pore‐free ceramics 27 . In our previous work, 28,29 the OPS was used to prepare WC ceramics and WC composite ceramics with different carbon sources (including resin powder, carbon block, and graphite oxide nanosheets coming from expanded graphite).…”

Effects of oscillatory pressure mode on the sintering behavior of Al2O3w–ZrO2 composite in hot oscillatory pressing

“…2 Ever since it was reported in 2014, 1 the technique has been applied to various material systems. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] The results showed that HOP can enhance densification, suppress grain growth, and improve mechanical properties for almost all systems studied so far. It was proposed that these improvements are likely due to that the oscillatory pressure promoted powder agglomeration breaking, grain-boundary sliding, 10 plastic deformation, 6 and facilitate liquid phase distribution.…”

“…Hot oscillatory pressing (HOP) is a recently developed pressure‐assisted sintering technique, 1 where oscillatory pressure is used to replace static pressure in traditional hot pressing (HP) 2 . Ever since it was reported in 2014, 1 the technique has been applied to various material systems 3–18 . The results showed that HOP can enhance densification, suppress grain growth, and improve mechanical properties for almost all systems studied so far.…”