Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Controlled Spraying Resolves Main Problems in Nanostructured Thermal Barrier Coatings

Abstract:
Iranian researchers from the Department of Materials Engineering, Malek-Ashtar University of Technology designed and optimized various parameters of nanostructured coatings and succeeded in the production of a very high-quality coating to resolve the main problems in the spraying and adhesion of nanostructured thermal barrier coatings to the sub-layer.

Controlled Spraying Resolves Main Problems in Nanostructured Thermal Barrier Coatings

Terhan, Iran | Posted on January 27th, 2014

Thermal barrier coatings play an important role in protecting the pieces that operate at very high temperatures. When these coatings are used, the working temperature of the turbine may increase due to their very small thermal conductivity and the ability to stand thermal slopes. Therefore, higher thermodynamic efficiency and lower pollution are obtained.

In this research, the optimization of spray condition was chosen as the main objective. The researchers produced a coating with very high quality by designing and optimizing various parameters of spraying. Sub-layers made of nickel-based superalloy (Inconel 738LC) were chosen in this research. The reason for the selection was simulation at industrial condition, to the extent that the alloy is used in the production of turbine blades.

In this research, the values of adhesive strength were calculated 24.6 and 38.12 MPa for conventional yttria stabilized zirconia (YSZ) thermal barrier coatings and plasma-sprayed nanostructure, respectively. However, the bonding strength of plasma-sprayed ceramics on metallic sub-layers has been reported 15-25 MPa. Therefore, adhesive strength calculated for the two coatings have been very desirable, specially for the nanostructured coating. It shows the correct selection of parameters in plasma-spraying process.

The plan has applications in power plants, petroleum and gas industries, automobile manufacturing, steam turbines, heat exchangers, boilers, gas turbines, and the coating of all pieces that operate at high temperatures.

Results of the research have been published in Ceramics International, vol. 39, issue 8, December 2013, pp. 8805-8813.

####

For more information, please click here

Copyright © Fars News Agency

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

Quantum teleportation on a chip: A significant step towards ultra-high speed quantum computers April 1st, 2015

So, near and yet so far: Stable HGNs for Raman April 1st, 2015

Two-dimensional dirac materials: Structure, properties, and rarity April 1st, 2015

3-D neural structure guided with biocompatible nanofiber scaffolds and hydrogels April 1st, 2015

Discoveries

Mind the gap: Nanoscale speed bump could regulate plasmons for high-speed data flow April 1st, 2015

Cooling massive objects to the quantum ground state April 1st, 2015

A novel way to apply drugs to dental plaque Nanoparticles release drugs to reduce tooth decay April 1st, 2015

Quantum teleportation on a chip: A significant step towards ultra-high speed quantum computers April 1st, 2015

Materials/Metamaterials

Wrapping carbon nanotubes in polymers enhances their performance: Scientists at Japan's Kyushu University say polymer-wrapped carbon nanotubes hold much promise in biotechnology and energy applications March 30th, 2015

DFG to Establish One Clinical Research Unit and Five Research Units: New Projects to Investigate Complications in Pregnancy, Particle Physics, Nanoparticles, Implants and Transport Planning / Approximately 13 Million Euros in Funding for an Initial Three-Year Period March 28th, 2015

Chemists make new silicon-based nanomaterials March 27th, 2015

UT Dallas engineers twist nanofibers to create structures tougher than bulletproof vests March 27th, 2015

Announcements

Quantum teleportation on a chip: A significant step towards ultra-high speed quantum computers April 1st, 2015

So, near and yet so far: Stable HGNs for Raman April 1st, 2015

Two-dimensional dirac materials: Structure, properties, and rarity April 1st, 2015

3-D neural structure guided with biocompatible nanofiber scaffolds and hydrogels April 1st, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Quantum teleportation on a chip: A significant step towards ultra-high speed quantum computers April 1st, 2015

So, near and yet so far: Stable HGNs for Raman April 1st, 2015

Two-dimensional dirac materials: Structure, properties, and rarity April 1st, 2015

3-D neural structure guided with biocompatible nanofiber scaffolds and hydrogels April 1st, 2015

Energy

Wrapping carbon nanotubes in polymers enhances their performance: Scientists at Japan's Kyushu University say polymer-wrapped carbon nanotubes hold much promise in biotechnology and energy applications March 30th, 2015

Solving molybdenum disulfide's 'thin' problem: Research team increases material's light emission by twelve times March 29th, 2015

SUNY Poly & M+W Make Major Announcement: Major Expansion To Include M+W Owned Gehrlicher Solar America Corporation That Will Create up to 400 Jobs to Develop Solar Power Plants at SUNY Poly Sites Across New York State March 26th, 2015

Hong Kong Investors Bullish on Dais Analytic Invest $5.75M, Provide $60M Contract, and Create New Joint Venture Company March 26th, 2015

Automotive/Transportation

Clean energy future: New cheap and efficient electrode for splitting water March 18th, 2015

Imperfect graphene opens door to better fuel cells: Membrane could lead to fast-charging batteries for transportation March 18th, 2015

Researchers synthesize new thin-film material for use in fuel cells: Article in the journal APL Materials shows how to grow Bi2Pt2O7 pyrochlore, potentially a more effective cathode for future fuel cells March 10th, 2015

Glass coating improves battery performance: To improve lithium-sulfur batteries, researchers added glass cage-like coating and graphene oxide March 2nd, 2015

Industrial

Industrial Nanotech, Inc. Announces Next Large Order from the Oil and Gas Industry March 26th, 2015

Young NTU Singapore spin-off clinches S$4.3 million joint venture with Chinese commercial giant March 23rd, 2015

Nanodevice Invented in Iran to Detect Hydrogen Sulfide in Oil, Gas Industry March 20th, 2015

Industrial Production of Nano-Based PVC Products in Iran March 20th, 2015

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







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE