Physical Vapor Deposition as an Economical Alternative to Gold Plating in Imitation Jewelry

Physical vapor deposition as a route to hidden amorphous states.

Stable glasses of indomethacin (IMC) were prepared by using physical vapor deposition. Wide-angle X-ray scattering measurements were performed to characterize the average local structure. IMC glasses prepared at a substrate temperature of 0.84 T(g) (where T(g) is the glass transition temperature) and a deposition rate of 0.2 nm/s show a broad, high-intensity peak at low q values that is not pre...

USE OF TITANIUM AND TUNGSTEN AS AN ALTERNATIVE TO GOLD IN JEWELLERY MANUFACTURING

In this study the use titanium and tungsten as alternatives to the noble metals in the jewellery industry was investigated. The degradation of titanium and tungsten were compared to that of gold, used as reference. Alternate immersion tests were performed in 3.5% sodium chloride and artificial perspiration. The metals’ abrasion resistance with respect to textile fabrics was determined. ...

Physical Vapor Deposition Simulations of Microstructure Evolution

Ti-Cr-N Coatings Deposited by Physical Vapor Deposition on AISI D6 Tool Steels

In this study, physical vapor deposition (PVD) Ti-Cr-N coatings were deposited at two different temperatures 100 and 400ºC on hardened and tempered tool steel substrates. The influence of the applied deposition temperature on the physical and mechanical properties of coatings such as roughness, thickness, phase composition, hardness and Young’s modulus were evaluated. Phase compositions were st...

Design issues in ionized metal physical vapor deposition of copper

The filling of deep vias and trenches with metal for interconnect layers in microelectronic devices requires anisotropic deposition techniques to avoid formation of voids. Ionized metal physical vapor deposition ~IMPVD! is a process which is being developed to address this need. In IMPVD, a magnetron sputter deposition source is augmented with a secondary plasma source with the goal of ionizing...