SCIENTIFIC INNOVATIVE PROJECTS FROM MINISTRY OF EDUCATION AND SCIENCE
AND NATIONAL ACADEMY OF SCIENCES OF UKRAINE
GAZAR – THE NOVEL METAL%POROUS MATERIAL
SUITABLE FOR NUMEROUS APPLICATIONS
Description:
Gazar is a new generation porous material with unique
mirror – like porous surface and high specific strength.
Pores in GAZAR are represented in the form of cylinder(cid:28)
or ellipse(cid:28)like holes which diameter may be assigned from
several nm to several centimeters.
The maximum total metal porosity amounts 45–60%.
Pores have a mirrored surface. Now several technologies of
GAZAR obtaining using Fe, Ni, Cu, Mg, Al, Co and their
alloys have been developed.
Innovative Aspect and Main Advantages:
– Gazar has a very high level of thermal conductivity and
lower characteristics of specific electro resistance compar(cid:28)
ing to porous metals which have been obtained using the
method of powder fibers agglomeration. Under the porosi(cid:28)
ty of 50% these characteristics two times greater compar(cid:28)
ing to the characteristics of its analogues.
– Gazar has lower coefficient of erosion dispersion.
Areas of Application:
– Self(cid:28)lubricating bearing;
– Regeneration and high(cid:28)temperature filters;
– separators;
– Light constructional materials;
– catalytic substrates and catalytic agent;
– Friction materials;
– Nanofilter cages;
– Cages for multi purpose composite materials;
– Implants.
Stage of Development:
Patented
Fig. 1. Different Gazar morphology
Fig. 2. Bearing made from gazar
Contact Details:
National Metallurgical Academy of Ukraine
Olexandr Velychko
49006, Ukraine, Dnepropetrovsk, Gagrina ave.4,
Tel. 38 056 7453156
Fax. 38 0562 474461
92
SCIENCE AND INNOVATION. Special Issue, 2007
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