Аннотация
Reduction of zirconium dioxide with boron carbide and nanofibrous carbon in argon yielded a highly dispersed powder of zirconium diboride. Characteristics of zirconium diboride powders were examined by various analytical methods. The material obtained is represented by a single phase, zirconium diboride. Powder particles are for the most part aggregated. The average size of particles and aggregates is 10.9–12.9 μm with a wide size distribution. The specific surface area of the samples is 1.8–3.6 m2 g–1. The oxidation of zirconium diboride begins at a temperature of 640°C The optimal synthesis parameters were determined: ZrO2: B4C: C molar ratio of 2: 1: 3 (in accordance with stoichiometry), process temperature 1600–1700°C, synthesis duration 20 min.
Язык оригинала | английский |
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Страницы (с-по) | 1579-1585 |
Число страниц | 7 |
Журнал | Russian Journal of Applied Chemistry |
Том | 90 |
Номер выпуска | 10 |
DOI | |
Состояние | Опубликовано - 1 окт. 2017 |