Advanced Materials for Aerospace Applications

2020 ◽  
pp. 39-65
Author(s):  
E. V. Bhavya ◽  
Shreyash Singh Thakur ◽  
Balamati Choudhury
Keyword(s):  
Advanced Materials ◽  
Aerospace Applications

Quantitative Evaluation of Alitize Coating on ŽS6K Ni-Base Superalloy

2014 ◽  
Vol 782 ◽  
pp. 578-583 ◽  
Author(s):  
Juraj Belan
Keyword(s):  
Turbine Blades ◽  
Advanced Materials ◽  
Diffusion Annealing ◽  
Jet Engines ◽  
Unique Combination ◽  
Jet Engine ◽  
Working Temperature ◽  
Aerospace Applications ◽  
Mechanical And Physical Properties ◽  
Base Superalloy

The aerospace industry is one of the biggest consumers of advanced materials because of its unique combination of mechanical and physical properties and chemical stability. Highly alloyed stainless steel, titanium alloys and nickel based superalloys are mostly used for aerospace applications. The aim of the work is to evaluate protective Al Si coating applied by diffusion annealing on substrate, Ni base superalloy ZS6K. This superalloy is used for turbine blade production in aero jet engine DV 2. Using of protective alitize coating provides an increasing of heat resistance of superalloy surface and increases working temperature up to 800°C. However, overcrossing of working temperature range (for ZS6K turbine blades it is from 705°C to 750°C) sometimes happen and that is the reason for detailed study of protective coating degradation. The alitize coating were evaluated in starting stage and after various time of regular loading in real aero jet engines DV 2. Coating and its degradation was evaluated with help of quantitative metallography methods (metallography software NIS Elements) and colour contrast as well.

TEM/STEM Characterization of Rapidly Solidified Aluminum Alloys

1985 ◽  
Vol 43 ◽  
pp. 30-31
Author(s):  
R. J. Kar ◽  
T. P. McHale ◽  
R. T. Kessler
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Aluminum Alloys ◽  
High Strength ◽  
Advanced Materials ◽  
Structure Property ◽  
Aerospace Applications ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Rapidly Solidified

Low-density and high strength-type rapidly solidified (RST) aluminum alloys offer promise for structural aerospace applications. At Northrop, as part of a continuing program to establish structure-property relationships in advanced materials, detailed transmission electron microscopy (TEM)/scanning transmission electron microscopy (STEM) of candidate RST aluminum-lithium (Al-Li) and high strength (7XXX-type) aluminum-copper-magnesium-zinc (Al-Cu-Mg-Zn) alloys is routinely performed. This paper describes typical microstructural features that we have observed in these alloys.Figure 1 illustrates the microstructure of an inert-gas atomized RST Al-Li-Cu-Mg-Zr alloy. Frequently the grain boundaries are decorated with continuous or semi-continuous stringers of oxide that are relatively opaque to the incident electron beam. These have been identified to be Al-,Mg-, and Li- containing oxides present on powder particle surfaces prior to consolidation, and which have not been adequately broken up and dispersed by post-consolidation processing. The microstructures of these alloys are generally characterized by unrecystallized grains and equiaxed sub-grains pinned by fine (0.2μm) precipitates. These have been identified to be Al3Zr dispersoids using a combination of selected area diffraction/energy-dispersive x-ray (SAD/EDX) methods.

A Materials Selection Protocol for Lightweight Actively Cooled Panels

2008 ◽  
Vol 75 (6) ◽  
Author(s):  
Lorenzo Valdevit ◽  
Natasha Vermaak ◽  
Frank W. Zok ◽  
Anthony G. Evans
Keyword(s):  
Minimum Weight ◽  
Ceramic Composites ◽  
Advanced Materials ◽  
Materials Selection ◽  
Aerospace Applications ◽  
Ni Alloy ◽  
Selection Protocol ◽  
Performance Results ◽  
Selection Methodology ◽  
Combustor Liner

This article provides a materials selection methodology applicable to lightweight actively cooled panels, particularly suitable for the most demanding aerospace applications. The key ingredient is the development of a code that can be used to establish the capabilities and deficiencies of existing panel designs and direct the development of advanced materials. The code is illustrated for a fuel-cooled combustor liner of a hypersonic vehicle, optimized for minimum weight subject to four primary design constraints (on stress, temperatures, and pressure drop). Failure maps are presented for a number of candidate high-temperature metallic alloys and ceramic composites, allowing direct comparison of their thermostructural performance. Results for a Mach 7 vehicle under steady-state flight conditions and stoichiometric fuel combustion reveal that, while C–SiC satisfies the design requirements at minimum weight, the Nb alloy Cb752 and the Ni alloy Inconel X-750 are also viable candidates, albeit at about twice the weight. Under the most severe heat loads (arising from heat spikes in the combustor), only Cb752 remains viable. This result, combined with robustness benefits and fabrication facility, emphasizes the potential of this alloy for scramjets.

Advanced Materials for Extreme Environment Aerospace Actuators

2016 ◽  
Vol 856 ◽  
pp. 119-124
Author(s):  
Luca Papini ◽  
Chris Gerada ◽  
Georgios E. Kampitsis ◽  
Antonios G. Kladas
Keyword(s):  
High Temperature ◽  
Numerical Simulations ◽  
High Performance ◽  
Experimental Validation ◽  
Extreme Environment ◽  
Advanced Materials ◽  
Electrical Machine ◽  
Electromagnetic Actuators ◽  
Aerospace Applications ◽  
Important Impact

In this paper the important impact of high temperature withstand on performance of electromagnetic actuators for aerospace applications is illustrated. Particular materials enabling high performance and increased reliability in such applications are analysed both through numerical simulations and experimental validation. Specific examples outline advancements in electrical machine technologies for this class of problems.

Progress in Advanced Materials Used in Electromagnetic Interference Shielding for Space Applications

2021 ◽  
pp. 530-553
Author(s):  
Rafael Vargas-Bernal ◽  
Bárbara Bermúdez-Reyes ◽  
Margarita Tecpoyotl-Torres
Keyword(s):  
Electromagnetic Interference ◽  
Electromagnetic Waves ◽  
Space Station ◽  
Advanced Materials ◽  
Shielding Effectiveness ◽  
Space Applications ◽  
Electrical And Magnetic Properties ◽  
Aerospace Applications ◽  
Technical Requirements ◽  
Materials Used

Aerospace applications experience electromagnetic interference produced by the space environment and by the materials, devices, and systems used in satellites, space shuttles, the international space station, and airplanes. The advanced materials represent a technological possibility to develop coatings that are able to offer a better shielding effectiveness against electromagnetic interference due to the possibility of controlling its electrical and magnetic properties as well as to that the size of the materials is very similar to the electromagnetic waves that it receives. In this chapter, an analysis of progress over advanced materials is presented with the aim of diffusing the role that nanomaterials have had, have and will have to increase the shielding to electromagnetic interference. Nanomaterials will protect aerospace components in the range of Hz to THz, but the huge advantage is that the range of protection can be optimized according to the technical requirements with a considerable weight reduction.

Review of Recent Developments in Composite Material for Aerospace Applications

2009 ◽  
Author(s):  
Bruce Shue ◽  
Alfonso Moreira ◽  
George Flowers
Keyword(s):  
Composite Material ◽  
Recent Work ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Metal Matrix ◽  
Experimental Testing ◽  
Ceramic Matrix Composite ◽  
Advanced Materials ◽  
Aerospace Applications ◽  
Modeling Strategy

Advanced materials are a key element in the development of modern aerospace vehicles and composites are one of the most promising types of such materials. They tend to be significantly lighter than their metal counterparts, while possessing impressive strength and performance characteristics. This paper describes recent work and developments in three major types of composite materials — polymer matrix composite (PMC), metal matrix composite (MMC), and ceramic matrix composite (CMC). Recent work in nanocomposites, which is particularly applicable to polymer matrix and metal matrix composites is also presented and discussed. In addition, some recent work in composite material damping is discussed and a modeling strategy for amplitude dependent damping is developing based upon heuristic modeling considerations and experimental testing results.

Progress in Advanced Materials Used in Electromagnetic Interference Shielding for Space Applications

2018 ◽  
pp. 284-313 ◽  
Author(s):  
Rafael Vargas-Bernal ◽  
Bárbara Bermúdez-Reyes ◽  
Margarita Tecpoyotl-Torres
Keyword(s):  
Electromagnetic Interference ◽  
Electromagnetic Waves ◽  
Space Station ◽  
Advanced Materials ◽  
Shielding Effectiveness ◽  
Space Applications ◽  
Electrical And Magnetic Properties ◽  
Aerospace Applications ◽  
Technical Requirements ◽  
Materials Used

Aerospace applications experience electromagnetic interference produced by the space environment and by the materials, devices, and systems used in satellites, space shuttles, the international space station, and airplanes. The advanced materials represent a technological possibility to develop coatings that are able to offer a better shielding effectiveness against electromagnetic interference due to the possibility of controlling its electrical and magnetic properties as well as to that the size of the materials is very similar to the electromagnetic waves that it receives. In this chapter, an analysis of progress over advanced materials is presented with the aim of diffusing the role that nanomaterials have had, have and will have to increase the shielding to electromagnetic interference. Nanomaterials will protect aerospace components in the range of Hz to THz, but the huge advantage is that the range of protection can be optimized according to the technical requirements with a considerable weight reduction.

scholarly journals Review on nanocomposites based on aerospace applications

2021 ◽  
Vol 10 (1) ◽  
pp. 237-253
Author(s):  
Aayush Bhat ◽  
Sejal Budholiya ◽  
Sakthivel Aravind Raj ◽  
Mohamed Thariq Hameed Sultan ◽  
David Hui ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aerospace Industry ◽  
Acrylonitrile Butadiene Styrene ◽  
Space Environment ◽  
Advanced Materials ◽  
Aerospace Applications ◽  
Multi Walled Carbon Nanotubes ◽  
Harsh Climate ◽  
Walled Carbon Nanotubes ◽  
Fatigue Corrosion

Abstract Advanced materials were used and are being implemented in structural, mechanical, and high-end applications. Contemporary materials are used and being implemented in structural, mechanical, and high-end applications. Composites have several major capabilities, some of them being able to resist fatigue, corrosion-resistance, and production of lightweight components with almost no compromise to the reliability, etc. Nanocomposites are a branch of materials within composites, known for their greater mechanical properties than regular composite materials. The use of nanocomposites in the aerospace industry currently faces a research gap, mainly identifying the future scope for application. Most successes in the aerospace industry are because of the use of suitable nanocomposites. This review article highlights the various nanocomposite materials and their properties, manufacturing methods, and their application, with key emphasis on exploiting their advanced and immense mechanical properties in the aerospace industry. Aerospace structures have used around 120,000 materials; herein, nanocomposites such as MgB2, multi-walled carbon nanotubes, and acrylonitrile butadiene styrene/montmorillonite nanocomposites are discussed, and these highlight properties such as mechanical strength, durability, flame retardancy, chemical resistance, and thermal stability in the aerospace application for lightweight spacecraft structures, coatings against the harsh climate of the space environment, and development of microelectronic subsystems.

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