scholarly journals Enhanced thermal stability and mechanical properties of nitrogen deficient titanium aluminum nitride (Ti0.54Al0.46Ny) thin films by tuning the applied negative bias voltage

2017 ◽  
Vol 122 (6) ◽  
pp. 065301 ◽  
Author(s):  
K. M. Calamba ◽  
I. C. Schramm ◽  
M. P. Johansson Jõesaar ◽  
J. Ghanbaja ◽  
J. F. Pierson ◽  
...  
1998 ◽  
Vol 555 ◽  
Author(s):  
P. Colpo ◽  
G. Ceccone ◽  
B. Leclercq ◽  
P. Salvatore ◽  
F. Rossi

AbstractThin films of zirconia have been deposited by an Inductively Coupled Plasma Assisted CVD (ICP-PACVD) reactor from tetra (tert-butoxy)-zircon precursor diluted in Ar and O2 gas mixture. An independent RF generator is used to control carefully the substrate negative bias voltage during the deposition. Zirconia thin films, with thickness up to 10 microns were deposited on Si (100) polished wafers under different plasma conditions. Correlation between deposition parameters, and microstructure has been established showing that the ion bombardment has a large influence on the coating characteristics. In particular, the possibility of tailoring mechanical properties of the films by controlling the applied DC bias voltage is discussed.


2008 ◽  
Vol 202 (12) ◽  
pp. 2684-2689 ◽  
Author(s):  
Guangan Zhang ◽  
Pengxun Yan ◽  
Peng Wang ◽  
Youming Chen ◽  
Junying Zhang ◽  
...  

2016 ◽  
Vol 5 (3) ◽  
pp. 158-169 ◽  
Author(s):  
Moritz to Baben ◽  
Marcus Hans ◽  
Daniel Primetzhofer ◽  
Simon Evertz ◽  
Holger Ruess ◽  
...  

1993 ◽  
Vol 59 (1-3) ◽  
pp. 187-192 ◽  
Author(s):  
I.J.R. Baumvol ◽  
F.C. Stedile ◽  
W.H. Schreiner ◽  
F.L. Freire ◽  
A. Schröer

1990 ◽  
Vol 188 ◽  
Author(s):  
Zhi-Feng Zhou ◽  
Qi-Gang Zhou ◽  
Yu-Dian Fan

ABSTRACTAmorphous Gd-Fe alloy thin films were made by D.C. planar magnetron sputtering under various deposition conditions (e.g., film thickness, composition, working pressure of Ar, negative bias voltage and deposition rate). The stress, the film composition and the content of entrapped Ar in the films were measured respectively. The experimental results showed that in this case the working pressure of Ar and the negative bias voltage did not change the composition of the films, and the stresses were all compressive except for the films deposited in a very high working pressure of Ar. The origin of the compressive stress can be attributed to the atomic peening effect produced by fast neutral working gas atoms rebounded from the sputtering target. The magnitude of the compressive stress depends not only on the amount of Ar atoms incorporated in the films but also on the film microstructure such as the packing density.


Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2658 ◽  
Author(s):  
Yung-I Chen ◽  
Yu-Zhe Zheng ◽  
Li-Chun Chang ◽  
Yu-Heng Liu

Zr–Si–N films with atomic ratios of N/(Zr + Si) of 0.54–0.82 were fabricated through high-power impulse magnetron sputtering (HiPIMS)–radio-frequency magnetron sputtering (RFMS) cosputtering by applying an average HiPIMS power of 300 W on the Zr target, various RF power levels on the Si target, and negative bias voltage levels of 0–150 V connected to the substrate holder. Applying a negative bias voltage on substrates enhanced the ion bombardment effect, which affected the chemical compositions, mechanical properties, and residual stress of the Zr–Si–N films. The results indicated that Zr–Si–N films with Si content ranging from 1.4 to 6.3 atom % exhibited a high hardness level of 33.2–34.6 GPa accompanied with a compressive stress of 4.3–6.4 GPa, an H/E* level of 0.080–0.107, an H3/E*2 level of 0.21–0.39 GPa, and an elastic recovery of 62–72%.


2016 ◽  
Vol 836-837 ◽  
pp. 234-241
Author(s):  
Long Sheng Fu ◽  
Wei Dai ◽  
Qi Min Wang ◽  
Kun Zeng

CrN coatings have been widely used in many industrial fields, such as cutting tools, moulds, mechanical components. In this work, CrN coatings were deposited using a high power impulse magnetron sputtering (HIPIMS) with various negative bias voltages. The composition, microstructure, and mechanical properties of the coatings were studied using X-ray diffractometer, scanning electron microscope (SEM) and nanoindenter. The cutting performance of the micro drills coated in CrN was also investigated by high speeding dry drilling printed circuit board (PCB). The results show that the bias voltage has significant influences on the microstructure and properties of the as-deposited films. Increasing negative bias voltages resulted in the microstructures refining of the CrN coatings with columnar grains. Further increasing the negative bias voltage caused the formation of defects in CrN. With optimization of the negative bias voltage, the micro-drills with CrN deposited by HIPIMS exhibited an excellent tool life comparing with the uncoated one.


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