Optical and Micro-Mechanical Properties of Ag-Based Low-E Glass by Magnetron Sputtering

2013 ◽  
Vol 477-478 ◽  
pp. 977-981 ◽  
Author(s):  
Jing Kai Yang ◽  
Hong Li Zhao ◽  
Li Ping Zhao ◽  
Jian Li
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Surface Morphology ◽  
Magnetron Sputtering ◽  
Figure Of Merit ◽  
Optoelectronic Properties ◽  
Tempering Time

Ag-based low-E films with a multilayer construction of top-Si3N4/SnO2/NiCrOx/Ag/ZnO/ NiCrOx/TiO2/under-SiOxNy were deposited on unheated glass by vacuum magnetron sputtering and then post-treated in the glass tempering furnace at 675±25°C for 4 min, 5 min and 6 min, respectively. The effects of tempering time on the surface morphology, optical and micro-mechanical properties have been investigated. The results show that the edge of the particles become vague with the increasing time. After tempering, the transmittance of 550 nm is higher than that of the as-deposited glass of 75.89%. Ag-based Low-E films tempered at 675±25°C for 6 min possess the biggest value of the figure of merit of 6.86×10-3 Ω-1 and exhibits the optimal optoelectronic properties. The composite nanohardness increase from 8.04 GPa to 9.23 GPa and the elastic modulus increases from 62.39 GPa to 84.58 GPa when tempered from 0 min to 6 min.

scholarly journals Magnetron Sputtering Construction of Nano-Al Metallized Wood and Its Functional Research

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1564
Author(s):  
Yanan Wang ◽  
Chengzhu Jin ◽  
Xinyi Wang ◽  
Qiushuang Li ◽  
Wenxuan Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Magnetron Sputtering ◽  
Sheet Resistance ◽  
Wood Surface ◽  
Functional Improvement ◽  
Material Structure ◽  
Wetting Properties ◽  
Al Metallization ◽  
Wood Surfaces

The magnetron sputtering method was used to deposit nano-Al film on the wood surface of Pinus sylvestris L. var. mongholica Litv., and the material structure, electrical conductivity, mechanical properties and wetting properties were tested and characterized. When the sputtering time was 60 min, the average cross-grain sheet resistance of metallized wood was 695.9 mΩ, and the average along-grain sheet resistance was 227.2 mΩ. Load displacement decreased by more than 88%,elastic modulus increased by 49.2 times, hardness increased by 46 times andsurface hydrophobic angle was close to 130°. The grain size of the Al film on the wood surface was presented as nanoparticles, and the arrangement was uniform and dense. The results indicate that without any burden on the environment, the use of magnetron sputtering can quickly and efficiently achieve Al metallization on wood surfaces, so that the wood surface can obtain conductivity and hydrophobic properties. The elastic modulus and hardness of the wood surface were improved, the mechanical properties of the wood were effectively improved and the functional improvement of the wood was realized. This study provides a feasible method and basis for the study of the simple, efficient and pollution-free modification of wood.

scholarly journals The Optoelectronic Properties of p-Type Cr-Deficient Cu[Cr0.95−xMg0.05]O2 Films Deposited by Reactive Magnetron Sputtering

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2376 ◽  
Author(s):  
Song-Sheng Lin ◽  
Qian Shi ◽  
Ming-Jiang Dai ◽  
Kun-Lun Wang ◽  
Sheng-Chi Chen ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Carrier Mobility ◽  
Figure Of Merit ◽  
Incident Light ◽  
Transparent Conductive Oxide ◽  
Optoelectronic Properties ◽  
Reactive Magnetron Sputtering ◽  
Reactive Magnetron ◽  
Mg Doping ◽  
P Type

CuCrO2 is one of the most promising p-type transparent conductive oxide (TCO) materials. Its electrical properties can be considerably improved by Mg doping. In this work, Cr-deficient CuCrO2 thin films were deposited by reactive magnetron sputtering based on 5 at.% Mg doping. The influence of Cr deficiency on the film’s optoelectronic properties was investigated. As the film’s composition varied, CuO impurity phases appeared in the film. The mixed valency of Cu+/Cu2+ led to an enhancement of the hybridization between the Cu3d and O2p orbitals, which further reduced the localization of the holes by oxygen. As a result, the carrier concentration significantly improved. However, since the impurity phase of CuO introduced more grain boundaries in Cu[Cr0.95−xMg0.05]O2, impeding the transport of the carrier and incident light in the film, the carrier mobility and the film’s transmittance reduced accordingly. In this work, the optimal optoelectronic performance is realized where the film’s composition is Cu[Cr0.78Mg0.05]O2. Its Haacke’s figure of merit is about 1.23 × 10−7 Ω−1.

Study on Laser Micro Shock Effect on Electrical Resistivity of Nanometer Copper Film

2014 ◽  
Vol 989-994 ◽  
pp. 45-48
Author(s):  
Qing Xue ◽  
Yin Qun Hua ◽  
Yu Chuan Bai ◽  
Rui Fang Chen ◽  
Hai Xia Liu
Keyword(s):  
Mechanical Properties ◽  
Electrical Resistivity ◽  
Elastic Modulus ◽  
Stress Concentration ◽  
Magnetron Sputtering ◽  
Twin Boundary ◽  
Copper Film ◽  
Electrical Performance ◽  
Shock Processing ◽  
Main Factor

The aim of this research is to improve the electrical performance of the nanometer copper film by laser micro shock processing. The nanometer copper film was prepared by the magnetron sputtering. The mechanism of laser micro shock processing effect on electrical resistivity, hardness and elastic modulus was investigated. The results show that the electrical resistivity of copper film after laser micro shock reduced by 22.5 % on average. And, the hardness and the elastic modulus increased by 38.5 % and 45.2 % on average, respectively. According to our research, we conclude that, the existence of a large number of twin, twin boundary, fault and the grow up grain are the main factor of the improvement of the electrical performance; and the existence of twin, stress concentration holes and fault are the key to improve its mechanical properties.

Anealing Effect on the Microstructure and Mechanical Properties of LaB6 Films

2013 ◽  
Vol 303-306 ◽  
pp. 2514-2518 ◽  
Author(s):  
Li Jie Hu ◽  
Lin Zhang ◽  
Jie Lin ◽  
Guang Hui Min
Keyword(s):  
Mechanical Properties ◽  
Raman Spectrum ◽  
Elastic Modulus ◽  
Magnetron Sputtering ◽  
Cross Sections ◽  
Annealing Process ◽  
Dc Magnetron Sputtering ◽  
Microstructure And Mechanical Properties ◽  
Negative Effect ◽  
Deposited Films

Lathanum hexaboride films were deposited by dc magnetron sputtering with the same sputtering parameters. AFM, XRD, Raman spectrum was used to characterize the film. The as-deposited films were annealed at 400 oC, 500 oC and 600 oC, respectively. After 400 oC’s annealing, morphology of fracture cross-sections of the films exhibited evolutions from columnar to the equiaxial, and the crystallinity of the film was improved as well. It was also found annealing process generated negative effect on the film’s hardness and elastic modulus.

scholarly journals Nanomechanical and Macrotribological Properties of CVD-Grown Graphene as a Middle Layer between Metal Pt Cylinders and SiO2/Si Substrate

2015 ◽  
Vol 2015 ◽  
pp. 1-7
Author(s):  
Hongyan Wu ◽  
Zhengbin Gu ◽  
Shantao Zhang ◽  
G. Hussain
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Friction Coefficient ◽  
Magnetron Sputtering ◽  
Microelectromechanical Systems ◽  
Middle Layer ◽  
Si Substrate ◽  
Wear Performance ◽  
Periodic Arrays ◽  
Grown Graphene

The CVD-grown graphene as a middle layer was introduced between Pt cylinders and SiO2/Si to extend the application of graphene for improving the wear performance of microelectromechanical systems. Periodic arrays of Pt cylinders were prepared on the graphene/SiO2/Si (Pt/graphene) and SiO2/Si substrate (Pt/SiO2) using the magnetron sputtering technique. To characterize Pt/graphene and Pt/SiO2, nanoindentation and macrotribological tests were performed. The results showed that the friction coefficient was lower and the wear lifetime of Pt/graphene was longer than those of Pt/SiO2. Graphene, as a middle layer, was not only observed to have significant influence on the mechanical properties (i.e., microhardness and elastic modulus), but also found to improve the adhesive strength between SiO2/Si and Pt cylinders.

Mechanical Properties of Platinum Films on Silicon and Glass Determined by Ultra-Microindentation

1994 ◽  
Vol 356 ◽  
Author(s):  
Jaroslav Mencik ◽  
Michael V. Swain
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Magnetron Sputtering ◽  
Film Thickness ◽  
Composite Film ◽  
Data Evaluation ◽  
Contact Radius ◽  
Berkovich Indenter ◽  
Substrate Properties ◽  
Film Substrate

AbstractPlatinum films of thickness 0.5 - 1.2 - 3.0 μm, deposited by magnetron sputtering onto glass and silicon, were investigated using ultra-microindentation. The tests were done with a pointed (Berkovich) indenter. The values of the hardness and elastic modulus of the composite “film + substrate” and the substrates alone were obtained for various loads and depths of penetration, and used to evaluate the hardness and elastic modulus of the films. The use of various film thicknesses and substrates has enabled us to investigate in more detail the influence of the contact radius/contact depth compared to the film thickness as well as the substrate properties on the total indentation behaviour. Various approaches to the data evaluation are discussed in the paper.

The Effects of Ag Addition on the Microstructure and Mechanical Properties of TiAlSiN Films

2013 ◽  
Vol 421 ◽  
pp. 304-307
Author(s):  
Chang Jie Feng ◽  
Yuan Fei Jiang ◽  
Shui Lian Hu ◽  
Ya Zhou
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Friction Coefficient ◽  
Surface Morphology ◽  
Magnetron Sputtering ◽  
Ag Addition ◽  
Microstructure And Mechanical Properties ◽  
Diffraction Peaks ◽  
Ag Film ◽  
Microhardness Tester

Adding a low content of soft metals (such as Ag, Au, Cu, etc) in TiN-based films can decrease the friction coefficient of the nitride films. To improve the mechanical properties of the TiAlSiN film, 4.5 at.% Ag was added in the TiAlSiN film. TiAlSiN and TiAlSiN/Ag films were deposited on AISI304 steel by magnetron sputtering using a Ti50Al40Si10target and a Ti50Al40Si10plus an Ag strip, respectively. The microstructure and mechanical properties of the films were investigated by SEM/EDS, XRD, a tribological machine and a microhardness tester. The results show that, with 4.5 at.% Ag addition, the surface morphology of the TiAlSiN film became rougher and its microhardness decreased from 1520±35 HV0.01to 1307±42 HV0.01. The preferred orientation of (111) of the TiAlSiN film changed to randomly and the diffraction peaks became broader due to the Ag addition. The friction coefficient of the TiAlSiN-Ag film decreased compared with the TiAlSiN film, but it showed inferior wear resistance due to its lower microhardness. The effects of Ag addition on the microstructure and mechanical properties of TiAlSiN films were discussed.

scholarly journals Experimental Analysis of the Mechanical Properties and Resistivity of Tectonic Coal Samples with Different Particle Sizes

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2303
Author(s):  
Congyu Zhong ◽  
Liwen Cao ◽  
Jishi Geng ◽  
Zhihao Jiang ◽  
Shuai Zhang
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Compressive Strength ◽  
Elastic Modulus ◽  
Uniaxial Compressive Strength ◽  
Coalbed Methane ◽  
Coal Sample ◽  
Fine Particles ◽  
Particle Sizes ◽  
Tectonic Coal

Because of its weak cementation and abundant pores and cracks, it is difficult to obtain suitable samples of tectonic coal to test its mechanical properties. Therefore, the research and development of coalbed methane drilling and mining technology are restricted. In this study, tectonic coal samples are remodeled with different particle sizes to test the mechanical parameters and loading resistivity. The research results show that the particle size and gradation of tectonic coal significantly impact its uniaxial compressive strength and elastic modulus and affect changes in resistivity. As the converted particle size increases, the uniaxial compressive strength and elastic modulus decrease first and then tend to remain unchanged. The strength of the single-particle gradation coal sample decreases from 0.867 to 0.433 MPa and the elastic modulus decreases from 59.28 to 41.63 MPa with increasing particle size. The change in resistivity of the coal sample increases with increasing particle size, and the degree of resistivity variation decreases during the coal sample failure stage. In composite-particle gradation, the proportion of fine particles in the tectonic coal sample increases from 33% to 80%. Its strength and elastic modulus increase from 0.996 to 1.31 MPa and 83.96 to 125.4 MPa, respectively, and the resistivity change degree decreases. The proportion of medium particles or coarse particles increases, and the sample strength, elastic modulus, and resistivity changes all decrease.

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