Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6593988 | Combustion and Flame | 2016 | 9 Pages |
Abstract
This study deals with combustion behavior of B2O3/Mg/NH4Cl/C complex systems for the synthesis of amorphous boron (B), boron carbide (B4C), and boron nitride (BN) nanostructures. The raw mixtures used in the experiments were prepared on the base of a B2O3-Mg precursor mixture, which is sufficiently exothermic to maintain a self-propagating regime of the combustion reaction. Thermodynamic analysis of the combustion temperatures and experimental validation indicate that the 1000-1500 °C temperature range is very effective for synthesizing the nanostructures of B, B4C, and BN. It was found that B-containing functional nanostructures are mainly spherical nanoparticles (B) or nanosheets (B4C, BN). The phase composition and microstructural characteristics of the final products were evaluated based on the combustion temperature and solid/liquid phase changes.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Hayk Nersisyan, Lee Tae Hyuk, Yoo Bung Uk, Kwon Suk Cheol, Suh Hoyoung, Kim Jin-Gyu, Lee Jong-Hyeon,