Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Creation of a Highly Efficient Technique to Develop Low-Friction Materials Which Are Drawing Attention in Association with Energy Issues

Tribol Lett 55(2014)
Tribol Lett 55(2014)

Abstract:
A research group led by Dr. Masahiro Goto, a MANA Scientist at the Nano-Electronic Materials Unit, International Center for Materials Nanoarchitectonics, NIMS, and Dr. Michiko Sasaki, a NIMS Postdoctoral Researcher, and Dr. Masahiro Tosa, a Group Leader at the High Temperature Materials Unit, NIMS, created an unprecedented highly efficient method for developing friction materials with a desired frictional property. The result of this research has been published in Tribology Letters, Vol.55 (2014) 289-293. DOI: 10.1007/s11249-014-0349-5.

Creation of a Highly Efficient Technique to Develop Low-Friction Materials Which Are Drawing Attention in Association with Energy Issues

Tsukuba, Japan | Posted on August 26th, 2014

A research group led by Dr. Masahiro Goto, a MANA Scientist at the Nano-Electronic Materials Unit (Unit Director: Toyohiro Chikyow),International Center for Materials Nanoarchitectonics, NationalInstitute for Materials Science (NIMS; President: Sukekatsu Ushioda), and Dr. Michiko Sasaki, a NIMS Postdoctoral Researcher, and Dr. Masahiro Tosa, a Group Leader at the High Temperature Materials Unit (Unit Director: Seiji Kuroda), NIMS, created an unprecedented highly efficient method for developing friction materials with a desired frictional property. The method is able to drastically accelerate the development of materials that have a friction coefficient suited to the purpose of use, such as low-friction materials for reducing energy loss and high-friction materials required for high-performance brakes.

Technology for freely controlling the friction coefficient of a material is a vital factor in the development of new materials. For instance, amid the worsening of the global environment and energy issues, reduction of frictions in generators and motors directly leads to energy conservation. Under such circumstances, technology to control friction force by coating an existing structural material is drawing attention. However, since the frictional property of a coating changes considerably due to differences in the crystal preferred orientation, an enormous number of experiments with variedcompositions and crystalline structures and orientations are required in order to obtain a material with a desired frictional property, which has lengthened the development process. This time, the research group applied combinatorial technology to the development of friction materials conducted through control of crystal preferred orientation for the first time, and created a completely new technique that enables highly efficient materials development that only requires one trial experiment, eliminating the need to conduct experiments many times.

For example, zinc oxide (ZnO), which is a general metal oxide, exhibits a low-friction phenomenon when its crystal preferred orientation is optimized. However, to find the optimum crystal preferred orientation and structure for achieving such low-frictional property, it was conventionally necessary to create a large number of samples with varied crystal preferred orientations by changing the coating conditions and evaluate their crystal preferred orientation and frictional property, which required a long R&D period.

In this research, the group led by Dr. Goto analyzed the crystal structure of each microscopic region of the slide mark remaining after sliding a material while changing the conditions of the coating film (load, type of indenter material, number of sliding cycles, etc.), and discovered that it is possible to change the crystal preferred orientation by changing such conditions. In addition, the group made it possible to clarify the correlation between the friction coefficient and the crystal preferred orientation through only one experiment by also measuring the friction coefficient of the location corresponding to the crystal preferred orientation. This technique also enables control of the crystal preferred orientation of a material by a friction process alone by changing the sliding conditions, which is an achievement that significantly expands the potential of friction materials development.

The combinatorial tribological technique proposed by the group, which is able to acquire information on the crystal structure and the crystal preferred orientation required for achieving the desired friction coefficient in a short time, and can change the crystal preferred orientation of the surface layer of a material to a specific orientation by mere friction, is expected to become a leading technique in future friction materials research.

Full bibliographic information

Masahiro Goto, Michiko Sasaki, Akira Kasahara and Masahiro Tosa, Frictional Property Depended on Crystal Preferred Orientation Analyzed by a Combinatorial Technique, Tribology Letters, Vol.55 (2014) 289-293, DOI: 10.1007/s11249-014-0349-5.

The results of this research has been published in Tribology Letters, Vol.55 (2014) 289-293. The research was carried out under the Grant-in-Aid for Scientific Research (A) (21246030) and as part of a project of the Green Tribology Innovation Network in the area of Advanced Environmental Materials of the Green Network of Excellence (GRENE) program sponsored by the Ministry of Education, Culture, Sports, Science and Technology.

####

About National Institute for Materials Science (NIMS)
Only one Public Institution for Materials Science in Japan

For more information, please click here

Contacts:
Masahiro Goto
MANA Scientist, Semiconductor Device Materials Group, Nano-Electronic
Materials Unit, Nano-Materials Field, MANA
TEL:+81-29-859-2746
FAX:+81-29-859-2025
GOTO.Masahiro=nims.go.jp
(Please change "=" to

Michiko Sasaki
NIMS PostDoc Researcher
Innovative Tribomaterials Group, High Temperature Materials Unit, NIMS
TEL:+81-29-851-3354(ext.6533)
SASAKI.Michiko=nims.go.jp
(Please change "=" to

For general inquiry
NIMS Public Relations Office
TEL:+81-29-859-2026
FAX:+81-29-859-2017
pressrelease=ml.nims.go.jp
(Please change "=" to

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

Nagoya physicists resolve long-standing mystery of structure-less transition: Nagoya University-led team of physicists use a synchrotron radiation X-ray source to probe a so-called 'structure-less' transition and develop a new understanding of molecular conductors August 21st, 2017

Tokai University research: Nanomaterial wrap for improved tissue imaging August 21st, 2017

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Physics

Sensing technology takes a quantum leap with RIT photonics research: Office of Naval Research funds levitated optomechanics project August 10th, 2017

'Perfect Liquid' Quark-Gluon Plasma is the Most Vortical Fluid: Swirling soup of matter's fundamental building blocks spins ten billion trillion times faster than the most powerful tornado, setting new record for "vorticity" August 4th, 2017

The first light atomic nucleus with a second face July 20th, 2017

X-ray photoelectron spectroscopy under real ambient pressure conditions June 28th, 2017

Discoveries

Nagoya physicists resolve long-standing mystery of structure-less transition: Nagoya University-led team of physicists use a synchrotron radiation X-ray source to probe a so-called 'structure-less' transition and develop a new understanding of molecular conductors August 21st, 2017

Tokai University research: Nanomaterial wrap for improved tissue imaging August 21st, 2017

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Materials/Metamaterials

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Two Scientists Receive Grants to Develop New Materials: Chad Mirkin and Monica Olvera de la Cruz recognized by Sherman Fairchild Foundation August 16th, 2017

Fewer defects from a 2-D approach August 15th, 2017

Announcements

Nagoya physicists resolve long-standing mystery of structure-less transition: Nagoya University-led team of physicists use a synchrotron radiation X-ray source to probe a so-called 'structure-less' transition and develop a new understanding of molecular conductors August 21st, 2017

Tokai University research: Nanomaterial wrap for improved tissue imaging August 21st, 2017

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Automotive/Transportation

2-faced 2-D material is a first at Rice: Rice University materials scientists create flat sandwich of sulfur, molybdenum and selenium August 14th, 2017

Engineers pioneer platinum shell formation process – and achieve first-ever observation August 11th, 2017

GLOBALFOUNDRIES, Silicon Mobility Deliver the Industry’s First Automotive FPCU to Boost Performance for Hybrid and Electric Vehicles: Silicon Mobility and GF’s 55nm LPx -enabled platform, with SST’s highly-reliable SuperFlash® memory technology, boosts automotive performance, ene August 3rd, 2017

Rice U. scientists map ways forward for lithium-ion batteries for extreme environments: Paper details developments toward high-temperature batteries July 27th, 2017

Aerospace/Space

The July 23 close fly-by of asteroid 2017 BS5 is explored in a Q&A with Dr. John S. Lewis, chief scientist at Deep Space Industries July 23rd, 2017

National Space Society Governor Scott Pace Named to National Space Council as Executive Secretary July 18th, 2017

National Space Society Supports VP Pence's Call for Constant Low-Earth Orbit Human Presence Leading to the Settlement of Space July 13th, 2017

Thinking thin brings new layering and thermal abilities to the semiconductor industry: In a breakthrough for the semiconductor industry, researchers demonstrate a new layer transfer technique called "controlled spalling" that creates many thin layers from a single gallium nitride July 11th, 2017

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