Composition, microstructure and mechanical properties of cBN-based composites sintered with AlN- Al- Ni binder
Source abstract
Abstract
Abstract Cubic boron nitride (cBN)-based composites were fabricated using AlN-Al-Ni binders at high pressure and high temperature (HPHT). Effects of binder content and temperature on phase composition, microstructure and mechanical properties of cBN-based composites were investigated. Abrasive ratio was measured using a new method. Almost all Al reacted with cBN during sintering, resulting in AlN as well as AlB 2 phases, while remaining Al and Ni formed intermetallic compounds. At 1500 °C, the reaction reached its maximum. Excellent relative density, flexural strength and fracture toughness of composites, sintered with 17 wt% binder, were 99.6%, 661 MPa and 7.19 MPa m 1/2 , respectively. However, the optimum value of hardness and abrasive ratio of composites at binder content of 13 wt% were 47.92 GPa and 2.99, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Metal and Thin Film Mechanics · Advanced materials and composites
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References (28)
Show source-provided references
1. Ultrahard nanotwinned cubic boron nitride10.1038/nature11728 ↗
2. Pulse electric current sintering of cubic boron nitride/tungsten carbide–cobalt (cBN/WC–Co) composites: effect of cBN particle size and volume fraction on their microstructure and properties10.1016/j.msea.2014.04.029 ↗
3. Microstructural and mechanical properties of cBN-Si composites prepared from the high pressure infiltration method10.1016/j.ijrmhm.2016.07.020 ↗
4. Investigation of the structural and mechanical properties of micro-/nano-sized Al2O3 and cBN composites prepared by spark plasma sintering10.1016/j.ceramint.2017.05.325 ↗
5. Investigation of Ti coatings on cubic boron nitride (cBN) grits by discharge treatment in spark plasma sintering system10.1016/j.apt.2017.06.008 ↗
6. The influence of microstructure on the fracture properties of polycrystalline cubic boron nitride10.1016/j.commatsci.2015.06.036 ↗
7. In situ synthesis of cBN–Ti3AlC2 composites by high-pressure and high-temperature technology10.1016/j.diamond.2012.07.002 ↗
8. Synthesis of cubic and hexagonal boron nitrides by using Ni solvent under high pressure10.1143/JJAP.46.311 ↗
9. Synthesis of cubic boron nitride crystals using Ni–Cr and Ni–Cr–Al Solvents under high pressure10.1143/JJAP.48.071004 ↗
10. Reactive sintering cBN-Ti-Al composites by spark plasma sintering10.1016/j.diamond.2016.08.009 ↗
11. Preparation of polycrystalline cBN containing nanodiamond10.1016/j.jmatprotec.2007.06.080 ↗
12. Mechanical properties of cBN–Al composite materials10.1016/j.ceramint.2010.07.034 ↗
13. High-pressure sintering of cBN-TiN-Al composite for cutting tool application10.1016/S0925-9635(01)00692-6 ↗
14. High pressure sintering of cubic boron nitride compacts with Al and AlN10.1016/j.diamond.2008.07.002 ↗
15. cBN–TiN, cBN–TiC composites: chemical equilibria, microstructure and hardness mechanical investigations10.1016/S0925-9635(99)00131-4 ↗
16. The effect of temperature on the hardness of polycrystalline cubic boron nitride cutting tool materials10.1016/j.ijrmhm.2004.01.004 ↗
17. Compositions, mechanical properties and microstructures of cBN-based composites sintered with Al or TiC10.1080/17436753.2017.1290330 ↗
18. Titanium/aluminum diborides in composites produced in the cBN-TiC-Al system by reaction sintering under high pressure10.3103/S1063457608050067 ↗
19. Effects of cubic BN addition and phase transformation on hardness of Al2O3–cubic BN composites10.1016/j.ceramint.2010.09.058 ↗
20. Spark plasma sintering of Al2O3–cBN composites facilitated by Ni nanoparticle precipitation on cBN powder by rotary chemical vapor deposition10.1016/j.jeurceramsoc.2011.05.019 ↗
21. Effect of Al additions and AlN interlayers on the stabilization of cBN sputtered thin films10.1016/j.diamond.2004.02.005 ↗
22. Effects of heating temperature on interfacial microstructure and compressive strength of brazed CBN-AlN composite abrasive grits10.1007/s11595-010-0127-7 ↗
23. Kinetics and mechanism of cubic boron nitride formation in the AlN–BN system at 6 GPa10.1016/j.diamond.2003.08.020 ↗
24. X-ray diffraction analysis of aluminum nitride sintered with cubic boron nitride10.1016/S0925-9635(96)00708-X ↗
25. Evaluation of KIC of brittle solids by the indentation method with low crack-to-indent ratios10.1007/BF00724706 ↗
26. TEM investigation of high-pressure reaction-sintered cBN-Al composites10.1023/B:JMSC.0000034176.85765.40 ↗
27. Nanotwinned diamond with unprecedented hardness and stability10.1038/nature13381 ↗
28. Nanomechanics of Hall–Petch relationship in nanocrystalline materials10.1016/j.pmatsci.2009.03.008 ↗