Preparation of submicron boron carbide powder through gas-solid reaction method
Source abstract
Abstract
Abstract Boron carbide submicron powder was synthesized with boron oxide and graphene as starting materials by gas-solid reaction method using two different apparatuses. The effects of calcination temperature and holding time, apparatus type and B 2 O 3 /C ratio of the starting materials on the phase composition and morphology of the synthesized powders were evaluated. A newly formed residual carbon morphology distinct from original graphene were present in samples synthesized at a higher B 2 O 3 /C ratio or temperature. The synthesis temperature of ∼1500 °C was found to be more suitable to obtain boron carbide powder without the existence of residual carbon. The new type of apparatus enabled the synthesis of boron carbide phase at a relatively lower temperature, due to its more efficient use of B 2 O 3 vapor.
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Research context
OpenAlex topics: Boron and Carbon Nanomaterials Research · Advanced ceramic materials synthesis · MXene and MAX Phase Materials
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References (21)
Show source-provided references
1. Boron carbide—a comprehensive review10.1016/0955-2219(90)90048-K ↗
2. Boron carbide: structure, properties, and stability under stress10.1111/j.1551-2916.2011.04865.x ↗
3. Pressureless sintering of boron carbide10.1111/j.1151-2916.2003.tb03498.x ↗
4. Pressureless sintering of boron carbide10.1016/j.ceramint.2009.07.034 ↗
5. Pressureless sintering of boron carbide10.1016/j.ceramint.2005.02.008 ↗
6. Grain size dependence of hardness and fracture toughness in pure near fully-dense boron carbide ceramics10.1016/j.jeurceramsoc.2016.01.017 ↗
7. New route for preparing nanosized boron carbide powder via magnesiothermic reduction using mesoporous carbon10.1016/j.ceramint.2015.07.163 ↗
8. The effect of different sources of porous carbon on the synthesis of nanostructured boron carbide by magnesiothermic reduction10.1016/j.ceramint.2014.07.147 ↗
9. Synthesis and consolidation of boron carbide: a review10.1179/095066009X12506721665211 ↗
10. A novel route to obtain B4C nano powder via sol–gel method10.1016/j.ceramint.2011.12.074 ↗
11. Understanding the morphological variation in the formation of B4C via carbothermal reduction reaction10.1016/j.ceramint.2016.06.126 ↗
12. An improved carbothermal process for the synthesis of fine-grained boron carbide microparticles and their photoelectrocatalytic activity10.1016/j.ceramint.2017.10.047 ↗
13. Morphology control in high yield boron carbide10.1016/j.ceramint.2016.11.076 ↗
14. Synthesis of boron carbide from boric oxide-sucrose gel precursor10.1016/j.powtec.2013.04.055 ↗
15. Effect of Cellulose-Derived structural homogeneity of precursor on the synthesis and morphology of boron carbide10.1007/s10904-015-0181-x ↗
16. Processing factors influencing the free carbon contents in boron carbide powder by rapid carbothermal reduction10.1016/j.diamond.2015.11.005 ↗
17. Molten-salt-mediated synthesis of SiC nanowires for microwave absorption applications10.1039/C2CE26510A ↗
18. Boron carbides of various compositions: an improved method for X-rays characterisation10.1016/0022-3115(91)90484-O ↗
19. Characterization of boron carbide nanoparticles prepared by a solid state thermal reaction10.1007/s00339-006-3729-3 ↗
20. Influence of carbon content on physicomechanical characteristics of boron carbide10.1016/j.jssc.2006.05.023 ↗
21. Preparation of carbon-free B4C powder from B2O3 oxide by carbothermal reduction process10.1016/S0167-577X(03)00579-2 ↗