Hits:

Indexed by:期刊论文

Date of Publication:2019-01-01

Journal:JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS

Included Journals:SCIE、Scopus

Volume:30

Issue:1

Page Number:308-315

ISSN No.:0957-4522

Key Words:Aerospace industry; Carbon fibers; Composite membranes; Cost engineering; Costs; Mechanical properties; Radar reflection; Shear strength, Effective approaches; Electromagnetic absorbing; Engineering applications; Hybrid multilayers; Inter-laminar shear strengths; Microwave absorbing; Microwave absorbing properties; Reflection loss, Radar absorbing materials

Abstract:An effective approach is proposed to fabricate hybrid multilayer stealth composite composed of carbon fiber/bismaleimide composites containing carbon coated Fe (Fe@C)/phenolphthalein polyetherketone (PEK-C) nano-membranes as interlaminar electromagnetic absorbing agents. Dynamic mechanical analysis and interlaminar shear strength tests were carried out to evaluate mechanical properties. Special attention was paid to the permittivity, permeability and microwave absorbing properties. The results indicated that the radar-absorbing structural materials (RASs) showed a minimum reflection loss (RL) value of -16.85dB observed at 11.5GHz at a thickness of 1.7mm, with the values exceeding -10dB achieved in 9.7-16.7GHz with increasing thicknesses. The measured RL values were in good agreement with the calculated ones. This strategy may be extended as a versatile approach to achieve high performance RASs, thereby promoting their engineering applications at low cost in aerospace industry.