Národní úložiště šedé literatury Nalezeno 3 záznamů.  Hledání trvalo 0.00 vteřin. 
Mechanical alloying of Fe-X (X=Al, Mo, Ni) powders studied by analytical electron microscopy
Buršík, Jiří ; Jirásková, Yvonna
Mechanical alloying via ball milling represents a relatively simple way of preparing materials with a micro-to nanograin crystalline and/or amorphous metastable structure.
PREPARATION OF FE-TI COMPOSITES BY BALL MILLING
Roupcová, Pavla ; Schneeweiss, Oldřich
The similar Ti-Fe powders were prepered from pure precursors as well as from splinters. The difference of structural and phase composition was determined by XRD and Mössbauer spectroscopy.
Příprava Fe-Ti kompozitů mletím v kulovém mlýnku
Roupcová, Pavla ; Schneeweiss, Oldřich
The materials were prepared by mechanical alloying in the ball mill. The first type of sample consists of pure commercial precursors (TiH2 and ferrihydride). The slightly changes of phase composition of the powder were under the detection limit of X-ray powder diffraction. The MS determined the changes from the first step of milling. The second type of sample was prepared from turnings. The reduction of the splinters volume and the mechanical alloying was running simultaneously. The huge crystalline size differences decreased the credibility of computation of phase composition by XRD. MS was able determined phase composition more exactly and in additional to differentiate crystalline and amorphous FeTi phase.

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