Fabrication and microstructure of Al2O3–ZrO2(3Y)–SiC nanocomposites

Preparation and Microstructural Characterization of Al2O3/ZrO2 Nanocomposites to Use in the Femoral Head of Hip Replacement

“…SPS is a comparatively new sintering process that allows compaction of ceramics at low temperature with short holding time, as well as gets dense body and high mechanical properties [10,11]. As shown in Fig.2, it shows that the density increase with the temperature enhanced.…”

Characterization of alumina matrix nanocomposite with ZrO2 inclusions densified by spark plasma sintering

“…Additional studies have reported similar results with inclusions of SiC, TiC, NbC, and ZrO 2 in alumina [4][5][6][7][8][9]. In addition to providing evidence for property improvements, these studies have also attempted to provide an understanding of the strengthening mechanisms, although many observations and their interpretation remain a subject of some controversy [6].…”

“…In addition to providing evidence for property improvements, these studies have also attempted to provide an understanding of the strengthening mechanisms, although many observations and their interpretation remain a subject of some controversy [6]. Nonetheless, there is convincing evidence of significant improvements in the properties of singlephase alumina ceramics, particularly with regards to hardness, wear resistance, strength, and toughness [7].…”

“…In the case of pressureless sintering of the nanocomposites, high temperatures (>1750 • C) were necessary in order to achieve nearly fully dense materials [7]. Since the ultimate properties of a material depend on the microstructure development during sintering, such considerations have limited the use of pressureless sintering.…”

Effect of Polyacrylic Acid Addition on Rheology of SiC‐Al2O3‐ZrO2(3Y) Mixed Suspensions

“…With added SiC increasing the strength and ZrO 2 increasing the toughness, the SiC‐Al 2 O 3 ‐ZrO 2 ceramic composites would exhibit higher comprehensive properties than Al 2 O 3 ceramics, SiC‐Al 2 O 3 ceramics or Al 2 O 3 ‐ZrO 2 ceramics. Much attention has been drawn to the sintering process and mechanical properties of SiC‐Al 2 O 3 ‐ZrO 2 ceramics . However, the problem of how to improve the dispersion of mixed powders or the rheology of mixed slurry has been rarely presented.…”