Microstructure of Spark Plasma-Sintered Silicon Nitride Ceramics
| Autor: | V. V. Krasil’nikov, A.A. Parkhomenko, V. V. Sirota, O.A. Lukianova, V. Yu. Novikov |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Equiaxed crystals
Silicon nitride Materials science Spark plasma sintering Modulus Nanotechnology 02 engineering and technology 01 natural sciences chemistry.chemical_compound Hardness 0103 physical sciences lcsh:TA401-492 General Materials Science Ceramic Composite material Elastic modulus Microstructure 010302 applied physics Nano Express 021001 nanoscience & nanotechnology Condensed Matter Physics Grain size chemistry visual_art visual_art.visual_art_medium lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology |
| Zdroj: | Nanoscale Research Letters, Vol 12, Iss 1, Pp 1-6 (2017) Nanoscale Research Letters |
| ISSN: | 1931-7573 |
| DOI: | 10.1186/s11671-017-2067-z |
| Popis: | The microstructure and phase composition of the high-content Al2O3-Y2O3-doped spark plasma-sintered silicon nitride were investigated. Fully dense silicon nitride ceramics with a typical α-Si3N4 equiaxed structure with average grain size from 200 to 530 nm, high elastic modulus of 288 GPa, and high hardness of 2038 HV were spark plasma sintered (SPSed) at 1550 °C. Silicon nitride with elongated β-Si3N4 grains, higher hardness of 1800 HV, density of 3.25 g/cm3, and Young’s modulus 300 GPa SPSed at 1650 °C was also reviewed. |
| Databáze: | OpenAIRE |
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