Amorphisation of Cr–10Co mixture by mechanical alloying

Effects of Al content on physical properties of ZnS thin films prepared by chemical bath deposition

“…The XRD patterns were analyzed using MAUD (Materials Analysis Using Diffraction) software [19] which is based on Rietveld analysis and Warren-Averbach methods in combination with Fourier analysis [20]. The Rietveld refinement of Al-doped ZnS thin films with doping concentration of 10 at.% is shown in Fig.…”

Extended solid solubility of a Co–Cr system by mechanical alloying

“…Additionally, in this diagram, the formation of different metastable phases can be observed. In this work, it is demonstrated that MA modify the solid solubility of the Co-Cr system in 7 h of milling time, when a shaker mixer/mill SPEX is used (high energy mill), in contrast with results previously reported [5,[11][12][13] by mechanical alloying using a planetary ball mill in larger milling times.…”

“…4 it is shown the X-ray pattern for powders with Co 70 Cr 30 composition milled for 7 h. In this pattern it can be distinguished reflection peaks at 42.34 • , 46.2 • and 47.6 • of 2Â corresponding to a sigma phase (CrCo-, tetragonal P4 2 /mnm, with a = 8.81Å and c = 4.56Å, c/a = 0.518, with atomic positions reported in [27]) in small proportion (less than 5 wt%). This sigma phase has been reported to appear after annealing [5,11]. However, the formation of this phase can be attributed to the excess of energy stored in the milled powder which favors the formation of intermetallic compound.…”

“…Previous studies [1] demonstrated that Mechanical Alloying (MA) is a powerful technique to synthesize nanostructured powdered materials [2][3][4], as long as the experimental milling conditions are well defined [5]. Recently, MA has received considerable interest because it can be used as a processing tool to obtain non-equilibrium phases [6].…”

“…Recently, MA has received considerable interest because it can be used as a processing tool to obtain non-equilibrium phases [6]. It has been found that the ball milling of elemental mixtures (MA) can be employed to synthesize various metastable phases, such as supersaturated solid solutions which are immiscible [5], i.e. nanostructured materials, intermetallics [7], quasicrystalline materials and amorphous phases [8].…”