Mechanical and corrosion properties of Ta–Mo coatings by heating processes

Zirconium (Zr) alloying layer was formed in the TC11 surface by using the double glow plasma surface alloying technique. The microstructure, surface hardness and oxidation resistance of the alloying layer were investigated by X-ray diffraction, scanning electron microscope and energy dispersive X-ray spectrometry, respectively. The results showed that the alloying layer consisted of a compact and homogeneous Ti-Zr mutual diffusion layer, and the surface alloying elements all displayed gradient distributions. The zirconium alloying layer enhanced the surface hardness by solution strengthening. The improvement of TC11 oxidation resistance was due to the formation of compact and uniform oxide scales, which was consisted of ZrO 2 as the major phase and TiO 2 as the minor phase.

Section: Introductionmentioning

confidence: 99%

“…They were commonly achieved by applying coatings such as diffusing coatings and deposited coatings onto components. 10–13…”

Section: Introductionmentioning

confidence: 99%

Influence of zirconium alloying layer on properties of TC11 alloy

Duan

Zhang

Wei

et al. 2014

“…Sputtering method is the most popular metal process to produce complex alloys, 1,2 since it is capable to reproduce different components and also due to its economical advantages for large series and high production rates.…”

Section: Introductionmentioning

confidence: 99%

Optical enhancement and selenisation models of CuInSe₂ films by substrate choosing processes

Wang

Teng

et al. 2013

Self Cite

In this research, substrate materials have been used for the production of the absorbed layer of salor cell-CuInSe 2 films. The microstructures of CuInSe 2 films have been studied through X-ray diffraction and scanning electron microscopy. Surface character and optical properties of CuInSe 2 films have been investigated on the substrate materials [Si, Al, SnO 2 doped F (SFO), Cu and steel]. The results show that CIS phase was changed from amorphous structure to single phase structure with the substrate changed from Si to Al, steel and Cu. It also found that only twophase structures existed in the CIS films on SFO. Meanwhile, substrate processes were found to be a vital parameter in determining the selenisation mechanism and grain size of the CIS films. An inverse relation between the substrate materials and the optical properties of the CIS films was observed.

“…TaN nanostructured materials have stable electrical properties under severe environmental conditions,1, 2 excellent corrosion resistance, good wear and oxidation resistance and good mechanical properties 3,4 Therefore, TaN nanostructured materials have been widely used as high temperature coatings and diffusion barriers in the microelectronics industry 5…”

Section: Introductionmentioning

confidence: 99%

Mechanical and corrosion properties of TaN coatings by N₂/Ar flow ratio processes

Zhou

Teng

et al. 2013

Self Cite

To optimise the performance of silicon diffusion barriers, TaN coatings were deposited through reactive magnetron sputtering at various N 2 /Ar flow ratios (4, 8, 12, 18 and 24%). The effects of the flow ratios on the structures, morphologies, corrosion and mechanical properties of the coatings were investigated in detail. The results show that the flow ratios had strong effects on the phase transformations from cubic to hexagonal phases in the coatings. Furthermore, the results of the morphology study indicated that the flow ratio was a vital parameter in determining the grain growth and the formation of TaN nanoparticles. Finally, the best improvement in corrosion and mechanical properties was found in the coating at 24%, which could be due to the occurrence of phase change and nanosized particles.