Nebojša Romčević (Avtor), M. Gilić (Avtor), Ivan Anžel (Avtor), Rebeka Rudolf (Avtor), Miodrag Mitrić (Avtor), Maja J. Romčević (Avtor), B. Hadžić (Avtor), D. Joksimović (Avtor), Milica Petrović Damjanović (Avtor), Matija Kos (Avtor)

Povzetek

Our work deals with the problem of producing a complex metal-ceramic composite using the processes of internal oxidation (IO) and severe plastic deformation. For this purpose, Cu-Al alloy with 0.4wt.% of Al was used. IO of sample serves in the first step of the processing as a means for attaining a fine dispersion of nanosized oxide particles in the metal matrix. Production technology continues with repeated application of severe plastic deformation (SPD) of the resulting metalmatrix composite to produce the bulk nanoscaled structural material. SPD was carried out with equal channel angular pressing (ECAP), which allowed that the material could be subjected to an intense plastic strain through simple shear. Microstructural characteristics of one phase and multiphase material was studied on internally oxidized Cu with 0.4wt.% of Al sample composed of one phase copper-aluminum solid solution in the core and fine dispersed oxide particles in the same matrix in the mantle region. In this manner AFM, X-ray diffraction and Raman spectroscopy were used. Local structures in plastically deformed samples reflect presence of Cu, CuO, Cu2O, Cu4O3 or Al2O3 structural characteristics, depending on type of sample.

Ključne besede

kovine;oksidi;mikroskopija na atomsko silo;Raman spektroskopija;mikrostrukture;metals;oxides;atomic force microscopy;Raman spectroscopy;microstructure;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FS - Fakulteta za strojništvo
UDK: 669
COBISS: 17748758 Povezava se bo odprla v novem oknu
ISSN: 1450-5339
Št. ogledov: 1015
Št. prenosov: 122
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: kovine;oksidi;mikroskopija na atomsko silo;Raman spektroskopija;mikrostrukture;
URN: URN:SI:UM:
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 61-68
Letnik: ǂVol. ǂ50 B
Zvezek: ǂno. ǂ1
Čas izdaje: 2014
DOI: 10.2298/JMMB140121007R
ID: 10852807