Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

PolyU spearheads research in nanostructured materials

03.04.2009
The Hong Kong Polytechnic University (PolyU) has recently received research funding totaling more than $9 million from the Research Grants Council (RGC), the Innovation and Technology Fund (ITF) and industry partners to advance the study of nanostructured materials on both theoretical and technological application sides.

The Hong Kong Polytechnic University (PolyU) has recently received research funding totaling more than $9 million from the Research Grants Council (RGC), the Innovation and Technology Fund (ITF) and industry partners to advance the study of nanostructured materials on both theoretical and technological application sides.

The grants will support two nanotech projects led by Prof. Lu Jian, Chair Professor and Head of PolyU's Department of Mechanical Engineering. The project funded by ITF-affiliated "Nano and Advanced Materials Institute Ltd" (NAMI) is expected to benefit the aerospace and steel industries; while the collaborative research supported by RGC will help demystify the underlying principle of nanostructure and establish related theory. Theories and multiscale numerical simulation tools will be developed from molecular level to macroscopic structural level that could be applied to car and aircraft.

In carrying out the ITF NAMI-funded project entitled "Development of the Layered Nanostructured Metallic Sheet/Plate for Structural Applications", PolyU has also won the support of two industry partners, namely the famous Baosteel Group Company of China and the European Aeronautic Defence and Space Company. Both are Fortune 500 companies while the latter is a global leader in aerospace, defence and related services.

Prof. Lu said this partnering has enabled PolyU to enhance its leading position in the technology of nanomaterials research for structural applications. He will lead a team to explore the potential of their newly-developed nanomaterials in structural applications for different targeted industrial sectors. The platform to be applied in their investigation of residual stress distribution measurement in nanostructured materials is unique in the world. Its application is also far-reaching and could be extended to other alloys and composites based on nanocrystalline materials or amorphous materials.

To better understand the underlying mechanism of the nanostructured generation of materials and its multiscale failure modes, Prof. Lu is also taking the lead in studying the "Design and Realization of Structural Materials with High Strength and High Ductility" together with nanotechnology experts from the Hong Kong University of Science and Technology, the Chinese University of Hong Kong and the University of Hong Kong. Through this project, the team will collaborate with three internationally well-known institutions from the US and France (namely the University of California at Berkeley, Pennsylvania State University in the US; and INRIA, the French national institute for research in computer science and control).

The project will address four key issues that would emerge when integrating the nanostructured materials for structural applications. They are (1) Improving the ductility of nanostructured materials and producing the materials at large scale; (2) Development of advanced numerical simulation tools for studying two highly conflicting key mechanical properties: Strength and Ductility; (3) Development of advanced experimental methods for investigating the fundamental fracture mechanisms; and (4) Development of joining technology for nanostructured materials using "Pulsed Laser Welding", and to optimize the welding conditions for conserving the nanostructures and the strength of the nanostructured materials.

Prof. Lu is a pioneering researcher in the fields of material science and engineering, mechanical engineering and mechanics. In studying nano-scale structural materials, the research teams leaded by Prof. J.Lu and his collaborator Prof. K.Lu (IMR, CAS) put forward the idea of "Nitriding Iron at Lower Temperatures" to refine the microstructure on the surface layer of an iron plate, and the article was published in the Science Magazine (January 31, 2003 issue). He also co-invented the SMAT together with Prof. Lu Ke of the Chinese Academy of Sciences with several issued patents in Europe, USA and China.

The sophisticated SMAT process could bring about a change in surface microstructure through generating an in-situ nanocrystalline layer on the surface of bulk metal. While most surface-modification techniques for solid materials are based on chemical reactions, SMAT seeks to reduce the grains sizes down to nanometer scale on the top surface layer through random mechanical plastic deformation. Hence this process represents a new approach to modify the properties and functionalities of the surface layer of materials.

This advanced technique can be combined with traditional work surface treatment methods to improve the mechanical properties of materials. It is applicable to producing advanced composite materials for a wide range of industries, including automotive, aerospace, civil structures, machinery, power generation, and bio-medical industry.

Over the years, Prof. Lu has received numerous honours for his breakthroughs. In 2006, he was awarded "The French Knight Order of National Merit" (Chevalier de l'Ordre National du Merite) by the French Government in recognition of his illustrious research and academic achievements. He further received a Gold Medal with Mention and a Special Prize in the 2007 Brussels Eureka Expo - The 56th World Exhibition of Invention, Research and Industrial Innovation for his invention "Nanostructured Materials Generation System – SMAT".

The two new research projects will continue the research work carried out by the Department of Mechanical Engineering since 2005, under the niche area scheme in the field of nanotechnology research with a focus on the Product Engineering through the Integration of Advanced and Nano-materials in Design. It will enhance the research capacity and ensure the worldwide leadership of PolyU in this research area of structural nano-materials in the future.

Evelyn Chan | Research asia research news
Further information:
http://www.researchsea.com
http://www.polyu.edu.hk/cpa/polyu/hotnews/details_e.php?year=2009&news_id=1608

More articles from Materials Sciences:

nachricht Barely scratching the surface: A new way to make robust membranes
13.12.2018 | DOE/Argonne National Laboratory

nachricht Topological material switched off and on for the first time
11.12.2018 | ARC Centre of Excellence in Future Low-Energy Electronics Technologies

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Data use draining your battery? Tiny device to speed up memory while also saving power

The more objects we make "smart," from watches to entire buildings, the greater the need for these devices to store and retrieve massive amounts of data quickly without consuming too much power.

Millions of new memory cells could be part of a computer chip and provide that speed and energy savings, thanks to the discovery of a previously unobserved...

Im Focus: An energy-efficient way to stay warm: Sew high-tech heating patches to your clothes

Personal patches could reduce energy waste in buildings, Rutgers-led study says

What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...

Im Focus: Lethal combination: Drug cocktail turns off the juice to cancer cells

A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.

The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...

Im Focus: New Foldable Drone Flies through Narrow Holes in Rescue Missions

A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.

Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...

Im Focus: Topological material switched off and on for the first time

Key advance for future topological transistors

Over the last decade, there has been much excitement about the discovery, recognised by the Nobel Prize in Physics only two years ago, that there are two types...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

New Plastics Economy Investor Forum - Meeting Point for Innovations

10.12.2018 | Event News

EGU 2019 meeting: Media registration now open

06.12.2018 | Event News

 
Latest News

Data use draining your battery? Tiny device to speed up memory while also saving power

14.12.2018 | Power and Electrical Engineering

Tangled magnetic fields power cosmic particle accelerators

14.12.2018 | Physics and Astronomy

In search of missing worlds, Hubble finds a fast evaporating exoplanet

14.12.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>