Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > News > Dry machining enhanced by superhard nanocomposites

December 26th, 2007

Dry machining enhanced by superhard nanocomposites

Abstract:
For dry machining, high hardness and high oxidation-resistance are both important. That's why superhard nanocomposites, which represent a new, advanced generation of wear protective coatings boosting such advantages as high hardness and high oxidation, are important to dry machining, according to Professor Stan Veprek of the Department of Chemistry at the Technical University of Munich.

Speaking at the recently held 2007 International Conference & Exhibition on Nanotechnology and Advanced Materials, Professor Veprek referred superhard nanocomposites to those that consists of 3-4nm small nanocrystals of a hard transition metal nitride "glued" together by one monolayer of thin Si3N4 interfacial "tissue".

When correctly prepared and free of impurities, the superhard nc-TiN/a-Si3N4composites attain high hardness of at least 100 Gpa while featuring high elastic recover, high elastic limit, high resistance against brittle fracture, high thermal stability and oxidation resistance.

Source:
machine.2456.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Intelligent optical chip to improve telecommunications: An INRS team uses autonomous learning approaches for optical waveform generators to boost optical signal processing functionalities for current and future telecom applications October 15th, 2021

Using quantum Parrondo’s random walks for encryption: Asst Prof Kang Hao Cheong and his research team from SUTD have set out to apply concepts from quantum Parrondo’s paradox in search of a working protocol for semiclassical encryption October 15th, 2021

Cellular environments shape molecular architecture: Researchers glean a more complete picture of a structure called the nuclear pore complex by studying it directly inside cells October 15th, 2021

How to program DNA robots to poke and prod cell membranes: A discovery of how to build little blocks out of DNA and get them to stick to lipids has implications for biosensing and mRNA vaccines October 15th, 2021

Discoveries

Intelligent optical chip to improve telecommunications: An INRS team uses autonomous learning approaches for optical waveform generators to boost optical signal processing functionalities for current and future telecom applications October 15th, 2021

Using quantum Parrondo’s random walks for encryption: Asst Prof Kang Hao Cheong and his research team from SUTD have set out to apply concepts from quantum Parrondo’s paradox in search of a working protocol for semiclassical encryption October 15th, 2021

Cellular environments shape molecular architecture: Researchers glean a more complete picture of a structure called the nuclear pore complex by studying it directly inside cells October 15th, 2021

How to program DNA robots to poke and prod cell membranes: A discovery of how to build little blocks out of DNA and get them to stick to lipids has implications for biosensing and mRNA vaccines October 15th, 2021

Materials/Metamaterials

UTA project aims to extend life of concrete, cement by adding nanoscale wood fibers: Wood fibers key to sustainable concrete, cement September 24th, 2021

Nanocellulose decorated with proteins is suitable for 3D cell culturing September 24th, 2021

Scientists demonstrate pathway to forerunner of nanotubes that could lead to widespread industrial fabrication September 17th, 2021

New substance classes for nanomaterials: Nano spheres and diamond slivers made of silicon and germanium: Potential applications as nano semiconductor materials September 10th, 2021

Announcements

Using quantum Parrondo’s random walks for encryption: Asst Prof Kang Hao Cheong and his research team from SUTD have set out to apply concepts from quantum Parrondo’s paradox in search of a working protocol for semiclassical encryption October 15th, 2021

Cellular environments shape molecular architecture: Researchers glean a more complete picture of a structure called the nuclear pore complex by studying it directly inside cells October 15th, 2021

How to program DNA robots to poke and prod cell membranes: A discovery of how to build little blocks out of DNA and get them to stick to lipids has implications for biosensing and mRNA vaccines October 15th, 2021

Molecular Sciences Software Institute receives $15 million grant from National Science Foundation October 15th, 2021

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

Intelligent optical chip to improve telecommunications: An INRS team uses autonomous learning approaches for optical waveform generators to boost optical signal processing functionalities for current and future telecom applications October 15th, 2021

Using quantum Parrondo’s random walks for encryption: Asst Prof Kang Hao Cheong and his research team from SUTD have set out to apply concepts from quantum Parrondo’s paradox in search of a working protocol for semiclassical encryption October 15th, 2021

Cellular environments shape molecular architecture: Researchers glean a more complete picture of a structure called the nuclear pore complex by studying it directly inside cells October 15th, 2021

How to program DNA robots to poke and prod cell membranes: A discovery of how to build little blocks out of DNA and get them to stick to lipids has implications for biosensing and mRNA vaccines October 15th, 2021

Events/Classes

Arrowhead Pharmaceuticals to Participate in Upcoming September 2021 Conferences September 1st, 2021

UVA Engineering researchers join quest to demonstrate photonic systems-on-chip: Future applications include faster, more efficient data centers and next-generation millimeter-wave wireless communication July 30th, 2021

Arrowhead Presents Preclinical Data on ARO-DUX4 at FSHD Society International Research Congress June 25th, 2021

Arrowhead Presents Positive Interim Clinical Data on ARO-HSD Treatment in Patients with Suspected NASH at EASL International Liver Congress June 24th, 2021

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




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project