Phase transitions in alumina films during post-sparking anodising of Al alloys

Phase Transitions During Continuous Heating of Martensitic CuAlMn Alloys

Phase transitions in CuAlMn alloys containing up to 12 at% Mn and 27 at% A1 continuously heated up to 5500C were studied using differential scanning calorimetry and transmission electron microscopy. Alloys containing less than 4.8 at% Mn exhibit an exothermal heat effect in the range 280 380°C due to y2 precipitation. The additional endothermal peak above 5000C is caused by DO3 disordering. All...

Phase transitions in argon films.

We present heat-capacity data detailing the evolution of the first six layers of argon adsorbed on graphite foam. The second and third layers have liquid-solid-gas triple points similar to the first layer. These layers exhibit a phase diagram consisting of two-dimensional solid, liquid, and gas phases on top of a solid film. Above the temperatures of the individual-layer triple points, the melt...

Phase separation during co-deposition of Al-Ge thin films

We present the results of a combined experimental and theoretical investigation of phase separation and microstructure development in co-deposited Al-Ge thin films. For small film thicknesses and deposition temperatures above 150 °C the phase-separated films consist of an array of domains of the Aland Ge-rich terminal phases (lateral phase separation). Films deposited at 100 °C or less containe...

Analysis of Al-2p photoelectron spectra of alumina coatings formed on heat treated Al-containing alloys

Phase Transitions in Mesoscopic Superconducting Films

We solve the Ginzburg-Landau equation (GLE) for the mesoscopic superconducting thin film of the square shape in the magnetic field for the wide range of the Ginzburg-Landau parameter 0.05 < κeff < ∞. We found that the phase with the antivortex exists in the broad range of parameters. When the coherence length decreases the topological phase transition to the phase with the same total vorticity ...