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Quasicrystalline Materials with Optimazed Properties

#1829


Quasicrystalline Materials with Optimal Properties on the Base of Systems Al-Cu-Fe and Ti-Zr-ТМ

Tech Area / Field

  • MAT-COM/Composites/Materials

Status
3 Approved without Funding

Registration date
23.03.2000

Leading Institute
MISIS (Steel and Alloys), Russia, Moscow

Supporting institutes

  • Kurchatov Research Center / Institute of Superconductivity and Solid State Physics, Russia, Moscow\nInstitute of Electrophysics, Russia, Sverdlovsk reg., Ekaterinburg

Collaborators

  • University of Oxford / Department of Engineering Science, UK, Oxford\nWarner electric GmbH, Germany, Wolfschiugen\nDaimler Chrysler AG, Germany, Stuttgart\nVictorReinz, Dana Corp., USA, Lisle

Project summary

Quasicrystals are basically the alloys of metallic elements, but in view of their special atomic structure quasicrystals manifest the very unusual physical properties which differ strongly from the properties of corresponding crystalline or amorphous phases. Quasicrystals possess the anormally low electrical and heat conduction, unusual optical and magnetic properties, low friction coefficient and surface energy, high strength, hardness, wear and corrosion resistance and so on. The high stability under radiation is one of the characteristic features of quasicrystalline materials, also.

The great interest was created in the new quasicrystalline materials last years as a result of substantial progress in the technology of stable quasicrystalline phases production, theoretical and experimental achievements and very interesting industrial applications. Due to unique combination of physical properties, quasicrystals are the promising material for potential applications in aircraft and automotive technologies as thermal-barrier coatings of metallic details, friction parts, contacts as well as in solar and nuclear power industry, for hydrogen storage in electrochemical energy-storage devices and so on. The obstacles for wider industrial applications of quasicrystalline phases are of technological nature and associated with the difficult metallurgy and the extreme sensitivity of properties to chemical composition and sample heat treatment.

The investigations in the framework of the Project will be performed along two main directions:


1) the technology and equipment for production of quasicrystalline films on the base of systems Al-Cu-Fe и Al-Cu-Fe + ТМ (TM is a transition metal) deposited on a dielectric (sapphire), semiconducting or metallic (copper, steel, alloys) substrates by the ion-plasma sputtering for applications in power industry and machine building industry;

2) the technology and equipment for production of bulk quasicrystalline samples on the base of system Ti-Zr-Ni by the crucible-less zone melting method for the applications in solar and nuclear power industry.

As a result of Project work program executing we expect to produce the pilot batches of quasicrystalline films and bulk samples having a considerable promise for applications, to study their physical properties and to develop the industrial technology of quasicrystalline materials production.


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