【摘 要】
：
The structural, morphological, mechanical and tribological characterization of nanoscaled multilayer TiN/TaN coatings deposited by magnetron sputtering technolo
【机 构】
：
Key Laboratory of Automobile Materials,State Key Laboratory for Laser
论文部分内容阅读
The structural, morphological, mechanical and tribological characterization of nanoscaled multilayer TiN/TaN coatings deposited by magnetron sputtering technology were investigated by low angle X-ray diffractometry, high angle X-ray diffractometry, atomic force microscopy, microhardness, pin-on-disc testing and 3-D surface profiler. The results show that the TiN/TaN coatings exhibit good modulation period and sharp interface between TiN and TaN layers. In mutilayered TiN/TaN coatings, TiN layers have cubic structure, but hexagonal structure emerged among TaN layers besides cubic structure as modulation period is beyond 8.5 nm. The microhardness is affected by modulation period and the maximum hardness value of 31.5 GPa appears at a modulation period of 8.5 nm. The coefficient of friction is high and the wear resistance is improved for TiN/TaN coatings compared with those of TiN coating; the wear mechanism exhibits predominantly ploughing, material transfer and localized spallation.
其他文献
The sintering technology of the AlN ceramics power were discussed. It is discussed that the compound sintering aids is consistent with the enhancement of the th
V defects in GaN layer grown on Si (111) using metalorganic chemical vapor deposition (MOCVD) were investigated by atomic force microscopy (AFM), plan-view tran
Laser crystal Yb∶KYW was grown by the Kyropoulos method. A grown crystal was identified as β-Yb∶KYW by XRD. By TG-DTA the melting point and transition point
Effects of extrusion deformation and heat treatment on microstructures, mechanical properties and texture of AZ31 Mg alloy were investigated.The results show th
Graphite and Al2O3 short fibers reinforced Mg-Al-Zn alloy hybrid composites were fabricated by perform squeeze-infiltration route. The effects of the volume of
The microstructure and mechanical properties of AZ80 alloy were investigated during thermal processing. The samples of 4 mm in thickness machined from cast ingo
Low energy consumption is one of the main challenges for wireless video transmission on battery limited devices. The energy invested at the lower layers of the
Li3V2(PO4)3 cathode material was prepared by a carbon-thermal reduction (CTR) process. V2O5,LiOH-H2O,NH4H2PO4 and C were used as starting materials to synthesiz
This review provided some recent progress of the research on corrosion mechanisms of magnesium and its alloys and a basis for follow-on research. Galvanic corro
SiCp/1060A1, SiCp/ZL101, SiCp/ZL102 composites with SiCp volume fraction of 55% were fabricated by pressureless infiltration. The microstructure was examined an