Liu, Xingmin ; Yu, Zhaoju ; Ishikawa, Ryo ; Chen, Lingqi ; Liu, Xiaofei ; Yin, Xiaowei ; Ikuhara, Yuichi ; Riedel, Ralf (2017)
Single-source-precursor derived RGO/CNTs-SiCN ceramic nanocomposite with ultra-high electromagnetic shielding effectiveness.
In: Acta Materialia, 130
doi: 10.1016/j.actamat.2017.03.031
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
For the first time, single-source-precursors (SSPs) were synthesized through chemical modification of a commercial poly(methylvinyl)silazane with chemically bonded graphene oxide and carbon nanotube hybrids (GO/CNTs). After pyrolysis of warm-pressed and consolidated SSP-powders at 1000 °C in Ar, monolithic SiCN ceramic nanocomposites modified with in-situ thermally reduced GO/CNTs, namely RGO/CNTs-SiCN, were successfully obtained. The SSP-derived nanocomposite exhibits significantly enhanced dielectric properties if compared with that of a physically-blended-precursor derived reference material. Moreover, the SSP-derived RGO/CNTs-SiCN composite containing 15.0 wt% GO/CNTs in the feed possesses an electromagnetic shielding effectiveness of 67.2 dB with a sample thickness of 2.00 mm, which is the highest value among all the reported graphene-based composites with comparable thickness.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Liu, Xingmin ; Yu, Zhaoju ; Ishikawa, Ryo ; Chen, Lingqi ; Liu, Xiaofei ; Yin, Xiaowei ; Ikuhara, Yuichi ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Single-source-precursor derived RGO/CNTs-SiCN ceramic nanocomposite with ultra-high electromagnetic shielding effectiveness |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Mai 2017 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 130 |
| DOI: | 10.1016/j.actamat.2017.03.031 |
| Kurzbeschreibung (Abstract): | For the first time, single-source-precursors (SSPs) were synthesized through chemical modification of a commercial poly(methylvinyl)silazane with chemically bonded graphene oxide and carbon nanotube hybrids (GO/CNTs). After pyrolysis of warm-pressed and consolidated SSP-powders at 1000 °C in Ar, monolithic SiCN ceramic nanocomposites modified with in-situ thermally reduced GO/CNTs, namely RGO/CNTs-SiCN, were successfully obtained. The SSP-derived nanocomposite exhibits significantly enhanced dielectric properties if compared with that of a physically-blended-precursor derived reference material. Moreover, the SSP-derived RGO/CNTs-SiCN composite containing 15.0 wt% GO/CNTs in the feed possesses an electromagnetic shielding effectiveness of 67.2 dB with a sample thickness of 2.00 mm, which is the highest value among all the reported graphene-based composites with comparable thickness. |
| Freie Schlagworte: | Single-source-precursor, Ceramic nanocomposite, RGO/CNTs hybrids, Dielectric properties, Electromagnetic shielding |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 11 Jul 2017 11:26 |
| Letzte Änderung: | 11 Jul 2017 11:26 |
| PPN: | |
| Sponsoren: | Z. Y. thanks the Natural Science Foundation of Fujian Province of China (No. 2015J01221) for financial support., X. L. acknowledges the financial support from China Scholarship Council (CSC) (201406290019)., R. I. and Y. I. acknowledge support from the Joint Research Project between Japan and Germany through JSPS Bilateral Program and the Exploratory Research program of MEXT, Core-to-Core Program of JSPS. |
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