Polymer and ceramic nanocomposites for aerospace applications

Abstract

This paper reviews the potential of polymer and ceramic matrix composites for aerospace/space vehicle applications. Special, unique and multifunctional properties arising due to the dispersion of nanoparticles in ceramic and metal matrix are briefly discussed followed by a classification of resulting aerospace applications. The paper presents polymer matrix composites comprising majority of aerospace applications in structures, coating, tribology, structural health monitoring, electromagnetic shielding and shape memory applications. The capabilities of the ceramic matrix nanocomposites to providing the electromagnetic shielding for aircrafts and better tribological properties to suit space environments are discussed. Structural health monitoring capability of ceramic matrix nanocomposite is also discussed. The properties of resulting nanocomposite material with its disadvantages like cost and processing difficulties are discussed. The paper concludes after the discussion of the possible future perspectives and challenges in implementation and further development of polymer and ceramic nanocomposite materials.

Selected Tribological Properties and Vibrations in the Base Resonance Zone of the Polymer Composite Used in the Aviation Industry

“…The up-to-date analysis of issues covering tribological aspects (e.g., [24][25][26]) is evidenced by publications of various scientific centers, in which the results of materials engineering research are analyzed, including considerations on how to improve the tribological properties of new materials [27,28] while determining the impact on their mechanical properties. The observed intensification in the development of material engineering in aviation, apart from defining the obtained mechanical properties for a given material, also requires the determination of tribological properties, due to the further possibilities of using these materials for structural solutions in which friction occurs.…”

Silane‐functionalized Al2O3‐modified polyurethane powder coatings: Nonisothermal degradation kinetics and mechanistic insights

“…This is because the C C bond on the surface of V-Al 2 O 3 can participate in curing process of PU via radical polymerization leading to a relatively uniform dispersion. [29,30] However, as marked in Figure 3, some agglomeration can also be observed in the PU resin. It is also evident from SEM images that aggregations became larger by increasing V-Al 2 O 3 nanoparticles loading.…”

“…[9] Moreover, high flammability and production of large amount of smoke and toxic gases are known as further weaknesses of PU powder coatings. [18] With the progress of technology, nano-sized solid particles including high innate thermally stable materials such as metal oxides, [19,20] carbon-based nanoparticles, [21] silica, [22,23] clays, [24][25][26][27][28] and ceramic [29] dispersed in a host polymer have opened promising gates toward highperformance coatings. Among metal oxide nanoparticles, nano-Al 2 O 3 considered an efficient modifier for the polymers, for example, to enhance anticorrosion properties of coatings, [30,31] hydrophobicity, [32] scratch, and abrasive resistance.…”

A Review of Electric Impedance Matching Techniques for Piezoelectric Sensors, Actuators and Transducers

“…Attenuation significantly increases at high frequencies reducing the signal intensity [61,62]. In most applications related to ultrasonic imaging [63][64][65], flaw detection in NDE [66,67,14], quasi-static sensing [4], vibration and acoustic emission sensing [68][69][70], ultrasonic sensing [71][72][73], damage detection in SHM [18][19][20]74], and distance measurement [5] the frequency range considered is 0.01-10 MHz. The signals are not greatly affected by the cables.…”