کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440911 | 1398240 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of graphene addition on the mechanical and electrical properties of Al2O3-SiCw ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of graphene addition on the mechanical and electrical properties of Al2O3-SiCw ceramics Effect of graphene addition on the mechanical and electrical properties of Al2O3-SiCw ceramics](/preview/png/5440911.png)
چکیده انگلیسی
This paper presents a study on graphene-reinforced Al2O3-SiCw ceramic composites and the relationship between graphene oxide (GO) loading and the resulting mechanical and electrical properties. Well-dispersed ceramic-GO powders were fabricated using a colloidal processing route. Dense composites were obtained via spark plasma sintering, a technique that has the ability to reduce GO to graphene in situ during the sintering process. The mechanical properties of the sintered composites were investigated. The composite with only a small amount of graphene (0.5 vol.%) showed the highest flexural strength (904 ± 56 MPa), fracture toughness (10.6 ± 0.3 MPa·m1/2) and hardness (22 ± 0.8 GPa) with an extremely good dispersion of graphene within the ceramic matrix. In addition to these exceptional mechanical properties, the sintered composites also showed high electrical conductivity, which allows the compacts to be machined using electrical discharge machining and thus facilitates the fabrication of ceramic components with sophisticated shapes while reducing machining costs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 6, June 2017, Pages 2473-2479
Journal: Journal of the European Ceramic Society - Volume 37, Issue 6, June 2017, Pages 2473-2479
نویسندگان
S. Grigoriev, P. Peretyagin, A. Smirnov, W. SolÃs, L.A. DÃaz, A. Fernández, R. Torrecillas,