Synthesis of ultra-fine TaB2 nano powders by liquid phase method
| Autor: | Peizhong Feng, XueYu Tao, Huilun Shi, Xuanru Ren, Li-Tong Guo, He Wang, Ziyu Li, Xiangxiang Zhang |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Tantalum Analytical chemistry chemistry.chemical_element 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Ultra-high-temperature ceramics Chemical state chemistry X-ray photoelectron spectroscopy 0103 physical sciences Particle-size distribution Materials Chemistry Ceramics and Composites engineering Particle size Selected area diffraction 0210 nano-technology Boron |
| Zdroj: | Journal of the American Ceramic Society. 100:5358-5362 |
| ISSN: | 0002-7820 |
| DOI: | 10.1111/jace.15106 |
| Popis: | Ultra-fine TaB2 powders were synthesized by a liquid phase method using tantalum ethoxide, boric acid and sucrose as the sources of tantalum, boron, and carbon. The TaB2 precursor powders is a Ta–B–C–O network system, which were heat-treated at lower temperature (1500°C) in normal argon atmosphere to obtain the TaB2 powders. XRD confirms the presence of only hexagonal TaB2, while EDS and XPS spectrums confirm the composition and element chemical states of TaB2. The TEM images show a platelet shape of the TaB2 powder and the monocrystal SAED pattern confirms the presence of hexagonal TaB2. Particle size distribution curves show that particle size of the TaB2 powders distributes in the range of 30-160 nm, whose mean particle size is 106 nm. |
| Databáze: | OpenAIRE |
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