Microstructure and mechanical properties of B6O-B4C sintered composites prepared under high pressure
Source abstract
Abstract
Sintered composites in the B6O-xB4C (x = 0–40 vol%) system were prepared under high pressure and high temperature conditions (3–5 GPa, 1500–1800°C) from the mixture of in-laboratory synthesized B6O powder and commercially available B4C powder. Relationship among the formed phases, microstructures and mechanical properties of the sintered composites was investigated as a function of sintering conditions and added B4C content. Microhardness of the sintered composite was found to increase with treatment temperature up to 1800°C, while fracture toughness decreased slightly. Maximum microhardness of Hv ∼ 46 GPa was obtained from B6O-30vol%B4C sintered composite under the sintering conditions of 4 GPa, 1700°C and 20 min.
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Research context
OpenAlex topics: Boron and Carbon Nanomaterials Research · Advanced materials and composites · Diamond and Carbon-based Materials Research
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