Hot-pressing of MoSi 2 reinforced B 4 C composites
Source abstract
Abstract
Abstract This paper reports on the effect of molybdenum disilicide (MoSi 2 ) addition on the densification and mechanical properties of boron carbide (B 4 C). Molybdenum disilicide powder (10 and 30 wt%) was added to boron carbide powder and consolidated by hot pressing at various temperatures (1700–1900 °C) and pressures (30–50 MPa) in 0.001 Pa vacuum. MoSi 2 was found to react with B 4 C and form reaction products SiC, MoB 2 and Mo 2 B 5 . Slight improvement in density was observed with respect to MoSi 2 addition. High density compact has been obtained with 30 wt% MoSi 2 at 1900 °C under a pressure of 50 MPa. The hardness, elastic modulus and fracture toughness of high dense B 4 C+30 wt% MoSi 2 compact was found to be 35.1 GPa, 555 GPa and 4.8 MPa m 1/2 respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Boron and Carbon Nanomaterials Research · MXene and MAX Phase Materials
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References (34)
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1. A. Lipp, Boron carbide: production, properties, application, Techn. Rundsch., 57 (14) (1965) 5, 57 (28) (1965) 14, 57 (33) (1965) 3 and 58 (7) (1966) 3
2. Boron carbide—a comprehensive review10.1016/0955-2219(90)90048-K ↗
3. Synthesis and consolidation of boron carbide: a review10.1179/095066009X12506721665211 ↗
4. Microstructural coarsening during sintering of boron carbide10.1111/j.1151-2916.1989.tb06252.x ↗
5. Processing of boron carbide–aluminium composites
6. Some physical properties of boron carbide with vanadium and chromium addition10.1007/BF00801593 ↗
7. Mechanical and electrical properties of B4C–CrB2 ceramics fabricated by liquid phase sintering10.1016/S0272-8842(02)00120-7 ↗
8. Development of B4C–HfB2 composites by reaction hot pressing10.1016/j.ijrmhm.2012.03.004 ↗
9. Synthesis and properties of hot pressed B4C–TiB2 ceramic composite10.1016/j.msea.2010.07.101 ↗
10. Structure and properties of B4C–SiC composites10.1007/s11106-005-0080-8 ↗
11. Processing and mechanical properties of boron carbide sintered with TiC10.1016/S0955-2219(98)00071-5 ↗
12. Microstructure and mechanical properties of hot-pressed B4C/(W, Ti)C ceramic composites10.1016/S0272-8842(01)00113-4 ↗
13. Densification and mechanical properties of B4C with Al2O3 as a sintering aid10.1111/j.1151-2916.2000.tb01647.x ↗
14. Effect of zirconia addition on pressureless sintering of boron carbide10.1016/j.ceramint.2007.04.017 ↗
15. Production and properties of impact-resistant composites based on boron carbide and aluminium nitride10.1007/s11106-010-9221-9 ↗
16. Phase and property studies of boron carbide–boron nitride composites10.1111/j.1151-2916.1992.tb04152.x ↗
17. Processing and properties of TiB2 with MoSi2 sinter-additive: a first report10.1111/j.1551-2916.2005.00652.x ↗
18. Densification and oxidation behavior of a novel TiB2–MoSi2–CrB2 composite10.1016/j.ijrmhm.2012.09.006 ↗
19. Microstructure and mechanical properties of ZrB2–MoSi2 ceramic composites produced by different sintering techniques10.1016/j.msea.2006.06.112 ↗
20. Preparation and property evaluation of TiB2+TiSi2 composite10.1016/j.ijrmhm.2008.10.001 ↗
21. Investigations on synthesis of ZrB2 and development of new composites with HfB2 and TiSi210.1016/j.ijrmhm.2010.06.007 ↗
22. A new TiB2+CrSi2 composite – densification, characterization and oxidation studies10.1016/j.ijrmhm.2010.02.012 ↗
23. Effect of CrSi2 and HfB2 addition on densification and properties of ZrB210.1016/j.ijrmhm.2011.10.001 ↗
24. Densification, characterization and oxidation studies of TiB2+WSi2 composite10.1016/j.ijrmhm.2012.02.002 ↗
25. Effect of WSi2 addition on densification and properties of ZrB210.1179/1743676113Y.0000000125 ↗
26. Properties of a pressureless sintered ZrB2–MoSi2 ceramic composite10.1111/j.1551-2916.2006.00999.x ↗
27. Spark plasma sintering and mechanical behavior of ZrC-based composites10.1016/j.scriptamat.2008.05.026 ↗
28. Effect of silicon additions on the hot pressing of B4C
29. Friction and wear properties of hot pressed (Ti,Cr)B2+MoSi2 composite in sliding against WC ball10.1016/j.ijrmhm.2013.12.013 ↗
30. A critical evaluation of indentation techniques for measuring fracture toughness: I, direct crack measurements10.1111/j.1151-2916.1981.tb10320.x ↗
31. Influence of spark plasma sintering parameters on densification and mechanical properties of boron carbide10.1016/j.ijrmhm.2013.09.004 ↗
32. Preparation of B4C–SiC composite ceramics through hot pressing assisted by mechanical alloying10.1016/j.ijrmhm.2013.04.012 ↗
33. Reactive and dense sintering of reinforced-toughened B4C matrix composites10.1016/j.materresbull.2004.05.011 ↗
34. Synthesis, densification and characterization of boron carbide