MECHANICAL PROPERTIES ENHANCEMENT OF BORON CARBIDE BASED ARMOUR MATERIALS

Priyadi Hartoko, Sean Li

Abstract


Lightweight armor materials made from ceramics have become a great interest in the past decades.  There have been many research efforts to develop the high-performance ceramics for this particular application. Boron carbide (B4C) is one of the promised candidates due to its extraordinary hardness, wear resistance, chemical inertness, ultra-lightweight, and its high resistance to radiation.  However, the strong covalent bonding nature of B4C makes it hard to be sintered.  Sintering at high temperatures and the presence of impurities can also result in grain coarsening. One of the methods being used to overcome the problems is to introduce Boron (B) as a sintering aid into raw materials of B4C.  To evaluate the effects of B addition on the sinterability of B4C, B4C powders were ball-milled with B powders in different ratios and the mixtures of B4C and B were processed by spark plasma sintering technique. Density and toughness of the as-sintered materials were increased along with increasing B content in the range from 1 wt% to 7 wt% while hardness and strength of the samples were also increased when the percentage of B addition is up to 5 wt%.


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References


B. Champagne, R. A. (1979). Mechanical properties of hot-pressed B-B4C materials. Journal of the American Ceramic Society, 62(3–4), 149–153.

Bakan, H. I., Heaney, D., & German, R. M. (2001). Effect of nickel boride and boron additions on sintering characteristics of injection moulded 316L powder using water soluble binder system. Powder Metallurgy. https://doi.org/10.1179/003258901666392

Bouchacourt, M., Brodhag, C., & Thevenot, F. (1981). Hot Pressing of Boron and Boron Rich Compounds: B6o, B10.5c-B4c. In Science of Ceramics.

Bouchacourt, M., & Thevenot, F. (1981). The properties and structure of the boron carbide phase. Journal of The Less-Common Metals. https://doi.org/10.1016/0022-5088(81)90223-X

Cabral Miramontes, J. A., Barceinas Sánchez, J. D. O., Almeraya Calderón, F., Martínez Villafañe, A., & Chacón Nava, J. G. (2010). Effect of boron additions on sintering and densification of a ferritic stainless steel. Journal of Materials Engineering and Performance. https://doi.org/10.1007/s11665-009-9544-1

Chaim, R. (2016). On densification mechanisms of ceramic particles during spark plasma sintering. Scripta Materialia. https://doi.org/10.1016/j.scriptamat.2016.01.010

Chen, M., McCauley, J. W., & Hemker, K. J. (2003). Shock-induced localized amorphization in boron carbide. Science. https://doi.org/10.1126/science.1080819

Chen, M. W., McCauley, J. W., LaSalvia, J. C., & Hemker, K. J. (2005). Microstructural characterization of commercial hot-pressed boron carbide ceramics. Journal of the American Ceramic Society. https://doi.org/10.1111/j.1551-2916.2005.00346.x

Emin, D., & Aselage, T. L. (2005). A proposed boron-carbide-based solid-state neutron detector. Journal of Applied Physics. https://doi.org/10.1063/1.1823579

Hitchcock, D., Livingston, R., & Liebenberg, D. (2015). Improved understanding of the spark plasma sintering process. Journal of Applied Physics. https://doi.org/10.1063/1.4919814

Larsson, P., Axén, N., & Hogmark, S. (2000). Improvements of the microstructure and erosion resistance of boron carbide with additives. Journal of Materials Science. https://doi.org/10.1023/A:1004888522607

Lee, H., Speyer, R. F., & Hackenberger, W. S. (2002). Sintering of boron carbide heat-treated with hydrogen. Journal of the American Ceramic Society. https://doi.org/10.1111/j.1151-2916.2002.tb00420.x

Liu, J., Cardamone, A., Potter, T., German, R. M., & Semel, F. J. (2000). Liquid phase sintering of iron-carbon alloys with boron additions. Powder Metallurgy. https://doi.org/10.1179/pom.2000.43.1.57

Luo, S. D., Yang, Y. F., Schaffer, G. B., & Qian, M. (2013). The effect of a small addition of boron on the sintering densification, microstructure and mechanical properties of powder metallurgy Ti-7Ni alloy. Journal of Alloys and Compounds. https://doi.org/10.1016/j.jallcom.2012.12.068

Reed, J. S. (1994). Principles of Ceramics Processing (2nd Ed). John Wiley & Sons Inc.

Roy, T. K., Subramanian, C., & Suri, A. K. (2006). Pressureless sintering of boron carbide. Ceramics International. https://doi.org/10.1016/j.ceramint.2005.02.008

Shen, Z., & Nygren, M. (2005). Microstructural prototyping of ceramics by kinetic engineering: Applications of spark plasma sintering. Chemical Record. https://doi.org/10.1002/tcr.20043

Thévenot, F. (1990). Boron carbide-A comprehensive review. Journal of the European Ceramic Society. https://doi.org/10.1016/0955-2219(90)90048-K

W.D. Kingery, H.K. Bowen, D. R. U. (1975). Introduction to Ceramics (2nd Ed). John Wiley & Sons Inc.

Zhang, Z. H., Liu, Z. F., Lu, J. F., Shen, X. B., Wang, F. C., & Wang, Y. D. (2014). The sintering mechanism in spark plasma sintering - Proof of the occurrence of spark discharge. Scripta Materialia. https://doi.org/10.1016/j.scriptamat.2014.03.011




DOI: http://dx.doi.org/10.33172/jp.v6i1.810

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