Correlation between reflectivity and resistivity in multi-component metallic systems

Abstract

Optical reflectivity and electrical resistivity of multi-component AgMgAl alloys, both crystalline and amorphous, were measured. The crystalline alloys exhibit high reflection in infrared region but a steeper drop in visible and ultraviolet regions. By contrast, amorphous alloys show a lower but relatively uniform reflectivity in the visible and infrared regions. In both cases, the reflectivity was observed to scale with the square root of electrical resistivity. The scaling law was explained based on classical reflection theory. The different scaling factors for crystalline and amorphous alloys could be rationalized by the difference in the mean free time of charge carriers. V

AgMgAl metallic glassy and intermetallic thin films for electric contact applications

“…In this study, we are examining the feasibility of our recently developed AgeMgeAl multi-component thin films [11,12], which can be compared with the characteristics of pure Au or Cu-based materials. There are three reasons for the selection of this AgeMgeAl ternary system.…”

Al–Ni–Y–X (X = Cu, Ta, Zr) metallic glass composite thin films for broad-band uniform reflectivity

“…In addition, Al has strong adhesion to glass and other substrates. The dense oxide layer on the Al surface has reasonable capability to protect the metal from corrosion or oxidation under normal condition [3], but the surface oxide layer would affect the optical reflectivity. Under more severe acid or alkaline conditions, Al can be corroded appreciably.…”

Wear behavior and corrosion properties of Fe-based thin film metallic glasses

“…In the past decade, a variety of TFMGs, including Pd- [13][14][15] , Zr- [16][17][18][19][20][21][22][23] , Mg- [24,25] , Al- [26,27] and Ag-based [28][29][30] systems, have been successfully fabricated by magnetron sputtering technique.…”