Densification mechanism and mechanical properties of oscillatory pressure sintered Al2O3-Ti(C,N) composite

Zhang, Mengwen; Jiang, Binyang; Yang, Lutong; Cao, Na; Li, Zhaosheng; Fan, Lei; Yang, Shoulei

doi:10.1007/s41779-023-00903-w

Cited by 1 publication

(2 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The specific calculation process is detailed in other literature. 32 The relative density curves of the Al 2 O 3 -Ti(C,N)-cBN composites during sintering at different temperatures are displayed in Figure 2. The Al 2 O 3 -Ti(C,N)-cBN composites are sintered at 1300-1500 • C, and their instantaneous relative density during the third heat preservation stage is shown in Figure 2A.…”

Section: Densification Processmentioning

confidence: 99%

“…A previous study has proven that the Al 2 O 3 -Ti(C,N) composites sintered by oscillatory pressure have higher density, hardness, and toughness than the Al 2 O 3 -Ti(C,N) composites sintered by hot pressing. 32 Therefore, oscillatory pressure sintering has become an effective way to prepare high-density Al 2 O 3 -Ti(C,N)-cBN composites with high hardness and toughness.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure

Zhang,

Cao,

Meng

et al. 2023

Int J Applied Ceramic Tech

Self Cite

View full text Add to dashboard Cite

High‐toughness Al2O3–Ti(C,N) composites reinforced by cBN particles were prepared by the new oscillating pressure sintering technique. The density, phase, and microstructure evolution of the Al2O3–Ti(C,N)‐cBN composites sintered at different temperatures were studied, and their effects on the mechanical properties were investigated. The results show that when the sintering temperature increases from 1300 to 1500°C, the heat preservation time shortens, whereas the density and interface bonding strength of the composites increase. In addition, cBN particles can play the role of crack bridging and be pulled out when the composites fracture, improving the toughness of the Al2O3–Ti(C,N)–cBN composites. However, when the sintering temperature further rises to 1600°C, a new phase of TiB2 forms, and the solid solubility of C and N in Ti(C,N) increases, leading to a decrease in density and mechanical properties. As a result, when the Al2O3–Ti(C,N)–cBN composite is sintered at 1500°C, its mechanical properties reach the maximum values of 21.5 GPa, 5.7 MPa m1/2, and 731 MPa for hardness, fracture toughness, and flexural strength, respectively.

show abstract

Section: Densification Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure

Zhang,

Cao,

Meng

et al. 2023

Int J Applied Ceramic Tech

Self Cite

View full text Add to dashboard Cite

show abstract

Densification mechanism and mechanical properties of oscillatory pressure sintered Al2O3-Ti(C,N) composite

Cited by 1 publication

References 35 publications

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure

Contact Info

Product

Resources

About

Densification mechanism and mechanical properties of oscillatory pressure sintered Al2O3-Ti(C,N) composite

Cited by 1 publication

References 35 publications

cBN‐reinforced Al2O3–Ti(C,N) composites with high toughness sintered under oscillatory pressure

cBN‐reinforced Al2O3–Ti(C,N) composites with high toughness sintered under oscillatory pressure

Contact Info

Product

Resources

About

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure