Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Nanoparticle based coating for aircraft engines may triple service life and reduce fuel consumption

SPS
SPS

Abstract:
Researchers at University West in Sweden have started using nanoparticles in the heat-insulating surface layer that protects aircraft engines from heat. In tests, this increased the service life of the coating by 300%. This is something that interests the aircraft industry to a very great degree, and the hope is that motors with the new layers will be in production within two years.

Nanoparticle based coating for aircraft engines may triple service life and reduce fuel consumption

Trollhättan, Sweden | Posted on March 21st, 2014

To increase the service life of aircraft engines, a heat-insulating surface layer is sprayed on top of the metal components. Thanks to this extra layer, the engine is shielded from heat. The temperature can also be raised, which leads to increased efficiency, reduced emissions, and decreased fuel consumption.

The goal of the University West research group is to be able to control the structure of the surface layer in order to increase its service life and insulating capability. They have used different materials in their work.

- "The base is a ceramic powder, but we have also tested adding plastic to generate pores that make the material more elastic," says Nicholas Curry, who has just presented his doctoral thesis on the subject.

Great stress on the material
The ceramic layer is subjected to great stress when the enormous changes in temperature make the material alternately expand and contract. Making the layer elastic is therefore important. Over the last few years, the researchers have focused on further refining the microstructure, all so that the layer will be of interest for the industry to use.

- "We have tested the use of a layer that is formed from nanoparticles. The particles are so fine that we aren't able to spray the powder directly onto a surface. Instead, we first mix the powder with a liquid that is then sprayed. This is called suspension plasma spray application.

Shock tests simulate temperature changes
Dr Curry and his colleagues have since tested the new layer thousands of times in what are known as "thermal shock tests" to simulate the temperature changes in an aircraft engine. It has turned out that the new coating layer lasts at least three times as long as a conventional layer while it has low heat conduction abilities.

- "An aircraft motor that lasts longer does not need to undergo expensive, time-consuming "service" as often; this saves the aircraft industry money. The new technology is also significantly cheaper than the conventional technology, which means that more businesses will be able to purchase the equipment.

Research at University West is conducted in close collaboration with aircraft engine manufacturer GKN Aerospace (formerly Volvo Aero) and Siemens Industrial Turbomachinery, which makes gas turbines. The idea is that the new layer will be used in both aircraft engines and gas turbines within two years.

What happens to the material over longer periods of time?
One of the most important issues for the researchers to solve is how they can monitor what happens to the structure of the coating over time, and to understand how the microstructure in the layer works.

- "A conventional surface layer looks like a sandwich, with layer upon layer. The surface layer we produce with the new method can be compared more to standing columns. This makes the layer more flexible and easier to monitor. And it adheres to the metal, regardless of whether the surface is completely smooth or not. The most important thing is not the material itself, but how porous it is," Dr Curry says.

How thermal spray application works
The surface layers on aircraft engine and gas turbines are called the thermal barrier coating and they are manufactured using a method called thermal spray application. A ceramic powder is sprayed onto a surface at a very high temperature-7,000 to 8,000 degrees C-using a plasma stream. The ceramic particles melt and strike the surface, where they form a protective layer that is approximately half a millimetre thick.

####

About University West
University West in Sweden is a small and modern university. Major areas of research are egineering and social sciences. There are also some research in the fields of the humanities and nursing and health sciences.

For more information, please click here

Contacts:
Karin Nobis


For more information, contact:

Doctor Nicholas Curry

telephone:0520-22 32 33 (in English)

Professor Per Nylén

telephone:0520-22 33 58
mobile: 0733-97 50 61

Copyright © AlphaGalileo

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

New tool allows scientists to visualize 'nanoscale' processes May 4th, 2016

FEI Launches Apreo – Industry-Leading Versatile, High-Performance SEM: The Apreo SEM provides high-resolution surface information with excellent contrast, and the flexibility to accommodate a large range of samples, applications and conditions May 4th, 2016

Little ANTs: Researchers build the world's tiniest engine May 3rd, 2016

An Experiment Seeks to Make Quantum Physics Visible to the Naked Eye May 3rd, 2016

Discoveries

New tool allows scientists to visualize 'nanoscale' processes May 4th, 2016

A compact, efficient single photon source that operates at ambient temperatures on a chip: Highly directional single photon source concept is expected to lead to a significant progress in producing compact, cheap, and efficient sources of quantum information bits for future appls May 3rd, 2016

Nuclear pores captured on film: Using an ultra fast-scanning atomic force microscope, researchers from the University of Basel have filmed 'living' nuclear pore complexes at work for the first time May 3rd, 2016

Little ANTs: Researchers build the world's tiniest engine May 3rd, 2016

Materials/Metamaterials

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Exploring phosphorene, a promising new material April 29th, 2016

Hybrid nanoantennas -- next-generation platform for ultradense data recording April 28th, 2016

Atomic magnets using hydrogen and graphene April 27th, 2016

Announcements

New tool allows scientists to visualize 'nanoscale' processes May 4th, 2016

FEI Launches Apreo – Industry-Leading Versatile, High-Performance SEM: The Apreo SEM provides high-resolution surface information with excellent contrast, and the flexibility to accommodate a large range of samples, applications and conditions May 4th, 2016

Nuclear pores captured on film: Using an ultra fast-scanning atomic force microscope, researchers from the University of Basel have filmed 'living' nuclear pore complexes at work for the first time May 3rd, 2016

Little ANTs: Researchers build the world's tiniest engine May 3rd, 2016

Aerospace/Space

Physicists detect the enigmatic spin momentum of light April 26th, 2016

Team builds first quantum cascade laser on silicon: Eliminates the need for an external light source for mid-infrared silicon photonic devices or photonic circuits April 21st, 2016

All powered up: UCI chemists create battery technology with off-the-charts charging capacity April 21st, 2016

Acclaimed Science Fiction Author Dr. Jerry Pournelle Wins the National Space Society Robert A. Heinlein Award April 13th, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic