Mechanical properties and microstructure of Al2O3-SiCw ceramic tool material toughened by Si3N4 particles
Source abstract
Abstract
Abstract Al2O3-SiCw toughened ceramic tools play vital role in high-speed machining of nickel-based superalloys due to their superior mechanical properties. Herein, owing to synergistic toughening mechanism, α-Si3N4 particles are employed as reinforcement phase into Al2O3-SiCw ceramic composite to optimize mechanical properties of Al2O3-SiCw ceramic tools. Moreover, the influence of Si3N4 content and sintering parameters on microstructure and mechanical properties of Al2O3-20 vol%SiCw ceramic tool material is systematically investigated. Results reveal that appropriate amount of Si3N4 particles is required to effectively increase the density of Al2O3-SiCw ceramic composites. The presence of Si3N4 particles leads to formation of novel β-sialon phase during hot-press sintering, which effectively enhances fracture toughness and flexural strength of Al2O3-SiCw ceramic composites. It is observed that grain size of newly formed β-sialon phase is extremely sensitive to hot-pressing sintering conditions. The degree of chemical transformation of α-Si3N4 into Si6-zAlzOzN8-z (β-sialon) and z-value of Si6-zAlzOzN8-z are significantly influenced by sintering temperature. Overall, Al2O3-20 vol%SiCw-15 vol%Si3N4 ceramic tool material, with 1.5 vol%Y2O3-0.5 vol%La2O3-0.5 vol%CeO2 (YLC) sintering additive, rendered optimal mechanical properties after sintering at 1600 °C under 32 MPa for 30 min. Improved mechanical performance can be ascribed to synergistic toughening and strengthening influence of whiskers and particles.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Advanced machining processes and optimization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Cutting performance and wear characteristics of PVD coated and uncoated carbide tools in face milling Inconel 718 aerospace alloy10.1016/S0924-0136(01)00850-0 ↗
2. Workpiece surface integrity and tool life issues when turning Inconel 718™ nickel based superalloy10.1081/MST-200039865 ↗
3. The effect of cutting speed and cutting tool geometry on machinability properties of nickel-base Inconel 718 super alloys10.1016/j.matdes.2005.12.008 ↗
4. Tool wear mechanisms and micro-channels quality in micro-machining of Ti-6Al-4V alloy using the Ti(C7N3)-based cermet micro-mills10.1016/j.triboint.2019.01.030 ↗
5. Effect of the progressive tool wear on surface topography and chip formation in micro-milling of Ti-6Al-4V using Ti(C7N3)-based cermet micro-mill10.1016/j.triboint.2019.105900 ↗
6. Chip formation analysis in high speed machining of a nickel base superalloy with silicon carbide whisker-reinforced alumina10.1016/0890-6955(94)90019-1 ↗
7. Wear mechanisms of silicon carbide whisker-reinforced alumina (Al2O3-SiCw) cutting tools when high-speed machining aged Alloy 71810.1007/s00170-013-4899-8 ↗
8. Experimental investigation on sialon ceramic inserts for ultra-high-speed milling of Inconel 71810.1080/10426914.2015.1019090 ↗
9. Cutting performance and wear mechanisms of Sialon-Si3N4 graded nano-composite ceramic cutting tools10.1007/s00170-011-3379-2 ↗
10. Cutting performance and crack self-healing mechanism of a novel ceramic cutting tool in dry and high-speed machining of Inconel 71810.1007/s00170-019-03386-x ↗
11. A study on in situ growth of TaC whiskers in Al2O3, matrix powder for ceramic cutting tools10.1016/j.materresbull.2012.04.001 ↗
12. Effect of nano-additives on microstructure and mechanical properties of Ti(C,N)-TiB2-WC composite ceramic cutting tool materials
13. Toughening behavior in SiC-whisker-reinforced alumina
14. Fabrication and mechanical properties of Al2O3-SiCw-TiCnp ceramic tool material10.1016/j.ceramint.2017.05.049 ↗
15. Synergism of particle dispersion and whisker toughening for advanced ceramic tool material
16. Synergistically toughening effect of SiC whiskers and nanoparticles in Al2O3-based composite ceramic cutting tool material10.3901/CJME.2016.0411.049 ↗
17. High temperature mechanical properties of Al2O3-based ceramic tool material toughened by SiC whiskers and nanoparticles
18. Evolution mechanisms of high temperature mechanical properties and microstructures of Al2O3/SiCw/TiCn nanocomposite materials10.1016/j.jallcom.2017.12.100 ↗
19. Pressureless sintered self-reinforced Y-α-SiAlON ceramics10.1016/j.jeurceramsoc.2006.04.185 ↗
20. Solid solubility of some oxides in Si3N410.1143/JJAP.10.1637 ↗
21. Progress in SiAlON ceramics10.1016/S0955-2219(00)00039-X ↗
22. Novel Sialon ceramics for Cutting tool applications10.4028/www.scientific.net/KEM.237.193 ↗
23. Wear behavior of solid Sialon milling tools during high speed milling of Inconel 71810.1016/j.wear.2017.02.025 ↗
24. A novel polishing method for single-crystal silicon using the cavitation rotary abrasive flow10.1016/j.precisioneng.2019.10.002 ↗
25. On the periodicity of fixed-abrasive planetary lapping based on a generic model10.1016/j.jmapro.2019.05.036 ↗
26. Mechanical properties and microstructure of Ti(C5N5)-TiB2-(W7Ti3)C composite cutting tool materials10.1007/s00170-015-6898-4 ↗
27. Fracture toughness determinations by indentation10.1111/j.1151-2916.1976.tb10991.x ↗
28. Feasibility study of the Ti(C7N3)-based cermet micro-mill based on dynamic fatigue behavior and modeling of the contact stress distribution on the round cutting edge10.1016/j.ijmecsci.2019.02.038 ↗
29. Wear mechanisms of Ti(C7N3)-based cermet micro-drill and machining quality during ultra-high speed micro-drilling multi-layered PCB consisting of copper foil and glass fiber reinforced plastics10.1016/j.ceramint.2019.08.187 ↗
30. Investigation on particle motions and resultant impact erosion on quartz crystals by the micro-particle laden waterjet and airjet10.1016/j.powtec.2019.10.032 ↗
31. The preparation of ZrO2-Al2O3 composite ceramic by SLA-3D printing and sintering processing10.1016/j.ceramint.2019.09.054 ↗
32. Effect of particle size distribution on the preparation of ZTA ceramic paste applying for stereolithography 3D printing10.1016/j.powtec.2019.09.066 ↗
33. Study on microstructure, mechanical properties and machinability of efficiently additive manufactured AISI 316L stainless steel by high-power direct laser deposition10.1016/j.jmatprotec.2016.09.005 ↗
34. Effect of seeding on the thermal conductivity of self-reinforced silicon nitride10.1016/S0955-2219(99)00030-8 ↗
35. Electronic structure behind the mechanical properties of β-sialons10.1016/0956-7151(92)90185-H ↗
36. Fabrication and characterization of Si3N4 reinforced Al2O3-based ceramic tool materials10.1016/j.ceramint.2015.06.115 ↗
37. Fabrication of dense nano-laminated tungsten carbide materials doped with Cr3C2/VC through two-step sintering10.1016/j.jeurceramsoc.2018.02.037 ↗