@article{ART003046606},
author={Kommel Lembit and Omranpour Shahreza Babak},
title={Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites},
journal={Carbon Letters},
issn={1976-4251},
year={2023},
volume={33},
number={5},
pages={1311-1319},
doi={10.1007/s42823-022-00351-9}
TY - JOUR
AU - Kommel Lembit
AU - Omranpour Shahreza Babak
TI - Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites
JO - Carbon Letters
PY - 2023
VL - 33
IS - 5
PB - Korean Carbon Society
SP - 1311
EP - 1319
SN - 1976-4251
AB - In this work, we investigated a modern combined processing technique for the synthesis of lightweight superhard composites based on boron–carbon. We used traditional B4C with precipitates of free graphite and Al powder as initial materials. In the first stage, the composites were fabricated by the self-propagating high-temperature synthesis (SHS) with the subsequent hot pressing of the compound. Further, by the disintegration and attrition milling, the ultrafine-grained powder was obtained. We used HCl and HNO3 acids for the chemical leaching of the powder to remove various impure compounds. At the last stage, a solid composite was obtained by the spark plasma sintering (SPS) method under nitrogen pressure. The main feature of this approach is to implement different synthesis techniques and chemical leaching to eliminate soft phases and to obtain superhard compounds from low-cost materials. The phases were studied by X-ray diffraction and scanning electron microscopy with energy-dispersive spectroscopy. The composites compacted by the SPS method contained superhard compounds such as B13C2, B11.7C3.3, and c-BN. The fabricated composite has an ultrafine-grained microstructure. Using a Berkovich indenter, the following nanohardness results were achieved: B13C2 ~ 43 GPa, c-BN ~ 65 GPa (all in Vickers scale) along with a modulus of elasticity ranging between ~ 400 GPa and ~ 450 GPa.
KW - Self-propagating high-temperature synthesis Attrition milling Chemical leaching Light-weight superhard composites
DO - 10.1007/s42823-022-00351-9
ER -
Kommel Lembit and Omranpour Shahreza Babak. (2023). Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites. Carbon Letters, 33(5), 1311-1319.
Kommel Lembit and Omranpour Shahreza Babak. 2023, "Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites", Carbon Letters, vol.33, no.5 pp.1311-1319. Available from: doi:10.1007/s42823-022-00351-9
Kommel Lembit, Omranpour Shahreza Babak "Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites" Carbon Letters 33.5 pp.1311-1319 (2023) : 1311.
Kommel Lembit, Omranpour Shahreza Babak. Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites. 2023; 33(5), 1311-1319. Available from: doi:10.1007/s42823-022-00351-9
Kommel Lembit and Omranpour Shahreza Babak. "Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites" Carbon Letters 33, no.5 (2023) : 1311-1319.doi: 10.1007/s42823-022-00351-9
Kommel Lembit; Omranpour Shahreza Babak. Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites. Carbon Letters, 33(5), 1311-1319. doi: 10.1007/s42823-022-00351-9
Kommel Lembit; Omranpour Shahreza Babak. Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites. Carbon Letters. 2023; 33(5) 1311-1319. doi: 10.1007/s42823-022-00351-9
Kommel Lembit, Omranpour Shahreza Babak. Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites. 2023; 33(5), 1311-1319. Available from: doi:10.1007/s42823-022-00351-9
Kommel Lembit and Omranpour Shahreza Babak. "Synthesis and characterization of mechanical properties of boron–carbon-based superhard composites" Carbon Letters 33, no.5 (2023) : 1311-1319.doi: 10.1007/s42823-022-00351-9
