Properties of B4C/Al–B4C composite with a two-layer structure |
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| Affiliation: | 1. Key Laboratory for Anisotropy and Texture of Materials (MOE), Northeastern University, Shenyang, China;2. School of Materials and Metallurgy, Northeastern University, Shenyang, China;1. Nuclear Materials Development Division, Korea Atomic Energy Research Institute (KAERI), 1045 Daedeokdaero, Yuseong, Daejon 305-353, Republic of Korea;2. Division of Advanced Materials Engineering, Kongju National University, Cheonan 330-717, Republic of Korea;3. Daewha Alloytech, Dangjin 343-882, Republic of Korea;1. State Key laboratory of Powder Metallurgy, Powder Metallurgy Research Institute, Central South University, Changsha 410083, China;2. School of Materials Science and Engineering, Central South University, Changsha 410083, China;1. Department of Mechanical Engineering, National Institute of Technology Warangal, Warangal 506 004, India;2. Discipline of Mechanical Engineering, Indian Institute of Technology Palakkad, Palakkad 678 557, India;3. National Institute of Technology Andhra Pradesh, Tadepalligudem 534 102, India;1. Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran;2. Department of Materials Science and Engineering, Shahreza Branch, Islamic Azad University, Isfahan, Iran;1. Department of Mechanical Engineering, Hacettepe University, 06935 Ankara, Turkey;2. Department of Metallurgy and Materials Engineering, Gazi University, 06500 Ankara, Turkey |
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| Abstract: | In order to obtain a material with a promising bulletproof performance, a two-layer structure composite consisting of B4C/Al-B4C was obtained using a two-step method for both hot pressing and infiltration aluminum in vacuum. Before aluminum infiltration the B4C porous layer of the two-layer preform looked like a three-dimensional network of interconnected capillaries. For the B4C ceramics layer the microstructure showed no apparent change before and/or after aluminum infiltration. The two-layer composite showed improved fracture toughness than that of B4C material and higher comprehensive hardness than that of B4C-Al material. |
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