An efficient hybrid conventional method to fabricate nacre-like bulk nano-laminar composites

Date

2009-08-01

Author

Ekiz, O. Oner
Dericioğlu, Arcan Fehmi
Kakisawa, Hideki

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Bulk nano-laminar composites were fabricated by a novel technique called Hot-press Assisted Slip Casting (HASC) which combines hot-pressing and slip-casting to improve alignment and volume fraction of the reinforcement. Alumina flakes were used as filler in an epoxy matrix. Microstructure of composites and alignment of flakes were characterized by Scanning Electron Microscope (SEM). Three point bending test and Vickers hardness test were done for mechanical characterization of composites. Flexural tests on Chevron-notched specimens revealed a high work-of-fracture in the case of the fabricated composites reaching to 254 J/m(2). Fracture surface of three point bending samples were examined by SEM. Main fracture mechanism is debonding of flakes from the matrix. With its high volume fraction (60%) of reinforcement phase and high degree of flake alignment, a nacre-like microstructure was achieved with a relatively efficient cost effective and simple hybrid conventional method.

Subject Keywords

Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/38016

Journal

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS

DOI

https://doi.org/10.1016/j.msec.2009.04.001

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

O. O. Ekiz, A. F. Dericioğlu, and H. Kakisawa, “An efficient hybrid conventional method to fabricate nacre-like bulk nano-laminar composites,” MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, pp. 2050–2054, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38016.