A novel method to avoid the sintering shrinkage of Al2O3-Cr cermets formed by direct ink writing
Source abstract
Abstract
The three-dimensional (3D) printed ceramic body often shrinks considerably after thermal processing, which seriously affects the forming accuracy of the final formed parts. In this report, the Al 2O 3 -Cr parts were prepared by 3D direct ink writing. After sintering, the final formed parts have no shrinkage and expanded slightly compared with the green body. Cr plays an important role in this process. The oxidation of Cr causes volume expansion to make up for the sintering shrinkage of the ceramic matrix. The Al 2O 3 -Cr cermet ink exhibits shear-thinning and viscoelastic inversion characteristics, indicating suitability for direct ink writing. A series of printed compacts with different metal and ceramic ratios were sintered at 1600 ℃. The related mechanical properties and microstructure of Al 2O 3 -Cr parts prepared by 3D direct ink writing were investigated. The data of XPS and SEM indicate that Cr reacts with oxygen in the system to produce Cr 2O 3 during sintering, resulting in the sintered part`s volume expansion. This new method provides a good strategy for controlling and eliminating the shrinkage of cermet parts during sintering.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced materials and composites · Additive Manufacturing and 3D Printing Technologies · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. The reciprocating wear behaviour of TiC–Ni3Al cermets10.1016/j.ijrmhm.2012.02.008 ↗
2. Impact resistance of TiC-based cermets10.1016/j.ijimpeng.2013.06.008 ↗
3. WC–TiC–Ni cemented carbide with enhanced properties10.1016/j.jallcom.2007.10.132 ↗
4. Chemical composition, microstructure and sintering temperature modifications on mechanical properties of TiC-based cermet – a review10.1016/j.matdes.2014.10.081 ↗
5. WITHDRAWN: processing, microstructure and mechanical properties of TiC–465 stainless steel/465 stainless steel layer composites10.1016/j.jallcom.2006.08.073 ↗
6. Spark plasma sintering of TiC particle-reinforced molybdenum composites10.1016/j.ijrmhm.2011.12.001 ↗
7. The effect of production method on properties of Fe–TiC composite10.1016/j.minpro.2010.01.002 ↗
8. In-situ synthesis and characterization of nano-structured NiAl-Al2O3 composite during high energy ball milling10.1016/j.powtec.2018.01.052 ↗
9. Influences of mechanical activation and heating rate on reaction processes in combustion synthesis of NiAl-Al2O3 composites10.1016/j.powtec.2019.01.072 ↗
10. Effect of powder reactivity on fabrication and properties of NiAl/Al2O3 composite coated on cast iron using spark plasma sintering10.1016/j.apsusc.2015.01.186 ↗
11. In-situ synthesis of nanostructured NiAl-Al2O3 composite coatings on cast iron substrates by spark plasma sintering of mechanically activated powders10.1016/j.surfcoat.2015.03.057 ↗
12. Additive manufacturing of advanced ceramic materials10.1016/j.pmatsci.2020.100736 ↗
13. Progress in additive manufacturing on new materials: a review10.1016/j.jmst.2018.09.002 ↗
14. Structural modifications of WC/Co nanophased and conventional powders processed by selective laser melting10.1080/10426914.2016.1176195 ↗
15. The influences of melting degree of TiC reinforcements on microstructure and mechanical properties of laser direct deposited Ti6Al4V-TiC composites10.1016/j.matdes.2017.09.063 ↗
16. Fabrication of functionally graded TiC/Ti composites by Laser Engineered Net Shaping10.1016/S1359-6462(03)00020-4 ↗
17. Phase composition and microstructure of WC–Co alloys obtained by selective laser melting
18. Wear properties of sintered WC-12%Co processed via Binder Jet 3D Printing (BJ3DP)10.1016/j.ijrmhm.2018.10.003 ↗
19. Additive manufacturing of WC-20Co components by 3D gel-printing10.1016/j.ijrmhm.2017.10.005 ↗
20. Study on 3D-Direct Ink Writing based on adding silica submicron-particles to improve the rheological properties of alumina ceramic ink
21. Thermoanalytical and dilatometric studies of the Al2O3–Cu–Mo hybrid composite10.1007/s10973-020-09526-w ↗
22. Fabrication and properties of extrusion-based 3D-printed hardmetal and cermet components10.1016/j.ijrmhm.2019.04.011 ↗
23. Direct ink writing of three-dimensional10.1111/j.1551-2916.2006.01382.x ↗
24. Rheological behavior of Al2O3 suspensions containing polyelectrolyte complexes for direct ink writing10.1016/j.powtec.2017.07.049 ↗
25. Direct ink writing additive manufacturing of porous alumina-based ceramic cores modified with nanosized MgO10.1016/j.jeurceramsoc.2020.07.058 ↗
26. A novel gel tape casting process based on gelation of sodium alginate10.1016/j.ceramint.2003.08.003 ↗
27. Injectable solid hydrogel: mechanism of shear-thinning and immediate recovery of injectable beta-hairpin peptide hydrogels10.1039/c0sm00642d ↗
28. Colloidal inks for directed assembly of 3-D periodic structures10.1021/la0257135 ↗
29. Effect of confinement on the static and dynamic indentation response of model ceramic and cermet materials10.1016/j.ijimpeng.2016.12.007 ↗
30. Additive manufacturing of SiO2–Al2O3 refractory products via Direct Ink Writing10.1016/j.ceramint.2020.07.210 ↗
31. Observation on the interface of α-Al2O3/Cr2O3: prepared by oxidation of Al45Cr710.1016/j.apsusc.2012.12.013 ↗
32. Alumina-chromium cermets by hot-pressing of nanocomposite powders10.1016/S0955-2219(98)00009-0 ↗
33. X-ray photoelectron spectroscopy studies of chromium compounds10.1002/sia.1983 ↗
34. Polyphase sintering and properties of metal matrix composites10.1016/j.jmatprotec.2005.04.014 ↗
35. Ceramic metal composite material
36. Controlling the content and morphology of phase constituents in nanobainitic steel containing 0.6%C to obtain the required ratio of strength to plasticity10.3390/met11040658 ↗
37. Properties and microstructures of Lanxide® Al2O3-Al ceramic composite materials10.1007/BF01107457 ↗
38. Achieving high strength and ductility in ODS-W alloy by employing oxide@W core-shell nanopowder as precursor10.1038/s41467-021-25283-2 ↗
39. Preparation, sintering behavior, and microstructural studies of Al2O3/Mo composites from boehmite-coated Mo powders10.1016/S0025-5408(00)00454-2 ↗
40. Study on chromium particle dispersion toughened alumina composites
41. Fabrication of transparent Y2O3 ceramics with record-high thermal shock resistance10.1016/j.jeurceramsoc.2018.04.016 ↗
42. Effect of metal chromium powder on sintering properties of dense chromium oxide materials
43. Enhancing strength and ductility synergy through heterogeneous structure design in nanoscale Al2O3 particulate reinforced Al composites10.1016/j.matdes.2019.107629 ↗