دورية أكاديمية
Microstructure and diametral fracture strength of spark plasma sintered WC-6Co-0.2B and WC-6Co-0.5B ceramic composites from nanosized and metastable WC powders
| العنوان: | Microstructure and diametral fracture strength of spark plasma sintered WC-6Co-0.2B and WC-6Co-0.5B ceramic composites from nanosized and metastable WC powders |
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| المؤلفون: | G. S. de Alencar e Silva, R. M. Leal Neto, M. Filgueira, C. A. R. P. Baptista, C. dos Santos, A. S. Ramos |
| المصدر: | Cerâmica, Vol 68, Iss 386, Pp 188-198 (2022) |
| بيانات النشر: | Associação Brasileira de Cerâmica, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Engineering (General). Civil engineering (General) |
| مصطلحات موضوعية: | tungsten carbide-cobalt composites, boron, spark plasma sintering (SPS), Rietveld refinement, mechanical properties, Engineering (General). Civil engineering (General), TA1-2040 |
| الوصف: | Abstract The present work aimed at evaluating the microstructures and mechanical properties of spark plasma sintered WC-6 wt% Co ceramic composites doped with boron (0.2 and 0.5 wt%). W-50 at% C (W-6.13 wt% C) powders produced under different milling times (20, 60, 180, and 600 min) were used as starting materials and subsequently mixed with Co (6 wt%) and B (0.2 or 0.5 wt%) powders for 5 min. The resultant WC-Co-B powder mixtures were consolidated by spark plasma sintering at 1450 °C for 10 min at 40 MPa under vacuum in order to obtain the samples with 10 mm diameter and 3 mm thickness. The starting powders and the sintered samples were characterized by laser diffraction particle size analysis, X-ray diffraction with Rietveld refinement, relative density, scanning electron microscopy, energy dispersive spectrometry, Vickers hardness test, and diametral compression test. Supersaturated W solid solution (WSS) with a crystallite size of |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Portuguese |
| تدمد: | 1678-4553 0366-6913 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132022000200188&lng=en&tlng=en; http://www.scielo.br/pdf/ce/v68n386/1678-4553-ce-68-386-188.pdf; https://doaj.org/toc/1678-4553 |
| DOI: | 10.1590/0366-69132022683863210 |
| URL الوصول: | https://doaj.org/article/3cc9197971af496d9f43641168e22512 |
| رقم الأكسشن: | edsdoj.3cc9197971af496d9f43641168e22512 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16784553 03666913 |
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| DOI: | 10.1590/0366-69132022683863210 |