Improvement and Evaluation of Metal Thin Films by Very Low Energy Argon Ion Irradiation

Author(s):  
Tomonori Sasaki ◽  
Ming Yang ◽  
Kinuko Fujimoto

A new methodology using very low energy Ar ion irradiation is proposed to improve the mechanical properties of thin metal films deposited by sputtering. In this study, accelerating voltage of Ar ion plasma was set to lower than 100V, and several conditions were applied to irradiations. Consequently, it is found that Young’s modulus and hardness of Aluminum and Nickel thin film increases about 10% by the irradiation compared with a non-irradiated thin film. (111)–oriented integrated intensity of diffraction of Al and Ni thin film was increased by the irradiation. It is considered that crystalline orientation was changed and column spacing of the film be filled by the irradiation. It is shown that the proposed technique is effective to improve the mechanical properties of metal thin films with proper irradiation conditions.

2004 ◽  
Vol 2004.1 (0) ◽  
pp. 389-390
Author(s):  
Tomonori SASAKI ◽  
Kinuko FUJIMOTO ◽  
Ming YANG

2021 ◽  
Vol 2144 (1) ◽  
pp. 012023
Author(s):  
P V Bykov ◽  
V L Vorob’ev ◽  
S G Bystrov ◽  
V V Tarasov ◽  
A Yu Drozdov ◽  
...  

Abstract The effect of argon ion irradiation with an energy of 40 keV in the dose range of 1016 - 1018 ion/cm2 on the formation of the surface layers composition, changes in the morphology and mechanical properties (microhardness, and wear resistance) of carbon steel AISI 1020 with a deposited ion-plasma coating Ni80Cr20 was studied. It is shown that irradiation with doses greater than 1017 ion/cm2 leads to the formation of a layer consisting of nickel, chromium and iron. The most optimal treatment mode for improving wear resistance is irradiation with a dose of 5.1017 ion/cm2.


2021 ◽  
Vol 887 ◽  
pp. 370-375
Author(s):  
I.A. Morozov ◽  
A.S. Kamenetskikh

Ion-plasma modification of polymers has many potential applications, in particular, in the development of biomedical products. Treatment of soft polymers can easily damage the surface; low-energy plasma and subsequent investigation of the structural and mechanical properties of the surface are required. Polyurethane is a widely used block copolymer. Subplantation of carbon ions heterogeneously changes the structural and mechanical properties of the surface (relief, stiffness, thickness of the modified coating), forming a graphene-like nanolayer. Uniaxial deformation of the treated materials in some cases leads to the damage of the surface (local nanocracks, folds). Materials have increased hydrophobicity, good deformability (valid for certain treatment regimes) and can find application in design of products with improved biomedical properties.


1988 ◽  
Vol 3 (5) ◽  
pp. 931-942 ◽  
Author(s):  
T. P. Weihs ◽  
S. Hong ◽  
J. C. Bravman ◽  
W. D. Nix

The mechanical deflection of cantilever microbeams is presented as a new technique for testing the mechanical properties of thin films. Single-layer microbeams of Au and SiO2 have been fabricated using conventional silicon micromachining techniques. Typical thickness, width, and length dimensions of the beams are 1.0,20, and 30 μm, respectively. The beams are mechanically deflected by a Nanoindenter, a submicron indentation instrument that continuously monitors load and deflection. Using simple beam theory and the load-deflection data, the Young's moduli and the yield strengths of thin-film materials that comprise the beams are determined. The measured mechanical properties are compared to those obtained by indenting similar thin films supported by their substrate.


2018 ◽  
Vol 112 (24) ◽  
pp. 241601
Author(s):  
Xi Yan ◽  
Hongrui Zhang ◽  
Hui Zhang ◽  
Tahira Khan ◽  
Jine Zhang ◽  
...  

2019 ◽  
Vol 126 (15) ◽  
pp. 155301 ◽  
Author(s):  
C. R. Stilhano Vilas Boas ◽  
J. M. Sturm ◽  
F. Bijkerk

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