scholarly journals Ultra – low friction characteristic of titanium diboride (TiB2) thin films at elevated temperature due to excess addition of boron

2021 ◽  
Vol 33 (0) ◽  
pp. n/a
Author(s):  
Wataru YAMATO ◽  
Masao KOHZAKI
Keyword(s):  
Thin Films ◽  
Elevated Temperature ◽  
Titanium Diboride ◽  
Low Friction ◽  
Friction Characteristic

In-situ elevated temperature imaging of thin films with a microfabricated hot stage for scanning probe microscopes

1999 ◽  
Vol 141 (1-2) ◽  
pp. 119-128 ◽  
Author(s):  
Michael DiBattista ◽  
Sanjay V. Patel ◽  
John F. Mansfield ◽  
Johannes W. Schwank
Keyword(s):  
Thin Films ◽  
Elevated Temperature ◽  
Scanning Probe ◽  
Temperature Imaging

scholarly journals Pulsed laser deposition of epitaxial titanium diboride thin films

2003 ◽  
Vol 444 (1-2) ◽  
pp. 91-94 ◽  
Author(s):  
V. Ferrando ◽  
D. Marré ◽  
P. Manfrinetti ◽  
I. Pallecchi ◽  
C. Tarantini ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Titanium Diboride ◽  
Pulsed Laser ◽  
Laser Deposition

Low friction states for thin solid lubricant film of MoS2

2018 ◽  
Vol 70 (4) ◽  
pp. 639-644 ◽  
Author(s):  
Kwang-Hua R. Chu
Keyword(s):  
Thin Films ◽  
Solid Lubricant ◽  
Activation Volume ◽  
High Vacuum ◽  
Low Friction ◽  
Friction Behavior ◽  
Stick Slip ◽  
Content Type ◽  
Term Operation

Purpose During the operation of Wendelstein 7-X (W7-X), any mechanical disturbance such as stick-slip may cause quenching of superconducting (SC) coils. The friction behavior of MoS2 lubrication (thin film) for narrow support elements between the SC coils in W7-X is rather important, as there is a design requirement for a coefficient of friction (COF) 0.05 between the sliding surfaces to control the stress contribution (from friction). Design/methodology/approach The author has carried out intensive calibrations or verifications using verified models considering previous friction tests on various samples which measured the COF in 4.2 K, 77 K and room temperature conditions (at high vacuum) to simulate the actual working condition. Findings The author has given useful explanations and diagnosis for previous anomalous scattered data. To improve the performance of MoS2, the author has predicted its better COF (0.002 via tuning of the activation volume), which could be a superlubricating state for MoS2 thin films considering the long-term operation requirement W7-X. Originality/value In this paper, the author has adopted Eyring’s approach to predict the low COF (0.002 via tuning of the activation volume), which could be a superlubricating state for MoS2 thin films considering the long-term operation requirement W7-X. Finally, some recent progresses about the possible few-layer MoS2 role in the electromagnetic loads have been provided.

Study by Extended X-ray Absorption Fine Structure Technique and Microscopy of the Amorphous State of Titanium Diboride Thin Films

1988 ◽  
Vol 71 (11) ◽  
pp. 948-955 ◽  
Author(s):  
ALAIN E. KALOYEROS ◽  
WENDELL S. WILLIAMS ◽  
RICHARD B. RIZK ◽  
FREDERICK C. BROWN ◽  
ALEX E. GREENE
Keyword(s):  
Thin Films ◽  
Fine Structure ◽  
Titanium Diboride ◽  
Amorphous State ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

scholarly journals Amorphous W–S–N thin films: The atomic structure behind ultra-low friction

2015 ◽  
Vol 82 ◽  
pp. 84-93 ◽  
Author(s):  
Leyla Isaeva ◽  
Jill Sundberg ◽  
Soham Mukherjee ◽  
Christopher J. Pelliccione ◽  
Andreas Lindblad ◽  
...  
Keyword(s):  
Thin Films ◽  
Atomic Structure ◽  
Low Friction

Comparison of the structure and topography of selected low friction thin films

2017 ◽  
Vol 1 (83) ◽  
pp. 21-25
Author(s):  
A. Paradecka ◽  
K. Lukaszkowicz ◽  
A. Kříž ◽  
R. Potempa
Keyword(s):  
Thin Films ◽  
Tribological Properties ◽  
New Technologies ◽  
Low Friction ◽  
Current Application ◽  
Mechanical And Tribological Properties ◽  
Atomic Force ◽  
Crucial Information ◽  
Intensive Development

Purpose: The purpose of this article is to characterize and compare the structure, mechanical and tribological properties of low friction DLC and TiC thin films deposited on the austenitic steel X6CrNiMoTi17-12-2 substrate. Design/methodology/approach: In the research, the samples of the DLC and TiC thin films with transition hard AlCrN interlayer deposited by magnetron sputtering and PACVD technology respectively were used. Observations of topography were made using a scanning electron microscope (SEM), and the atomic force microscope (AFM). The structure of samples was performed using a Raman microscope. The microhardness tests of thin films were made by Oliver & Phare method. Findings: Studies confirmed that the combination of research SEM and AFM provide crucial information on the structure and topography of the samples. It was possible to obtain information about the topography parameters and allow for the assessment of morphology and quality of the tested coatings. Study of the structure using Raman spectroscopy revealed the band corresponding to the DLC and TiC thin films. Practical implications: The current application areas for low friction thin films are constantly growing, and the intensive development of techniques requires the use of new technologies what leads to the production of the specific surface layer and a thorough examination. Originality/value: Growing area of low friction coatings with specific properties requires the use of specialized tools aimed at assessing the topography and structures which are responsible for tribological properties.

Tribological study of low friction DLC:Ti and MoS2 thin films

2018 ◽  
Vol 1 (89) ◽  
pp. 13-18
Author(s):  
A. Paradecka ◽  
K. Lukaszkowicz
Keyword(s):  
Thin Films ◽  
Friction Coefficient ◽  
New Technologies ◽  
Scratch Test ◽  
Substrate Material ◽  
High Wear Resistance ◽  
Research Information ◽  
Low Friction ◽  
Atomic Force ◽  
Intensive Development

Purpose: The purpose of this article is to characterize and compare the microstructure and tribological properties of low friction DLC:Ti and MoS2 thin films deposited on the austenitic steel X6CrNiMoTi17-12-2 substrate. Design/methodology/approach: In the research, the samples of the DLC:Ti and MoS2 thin films deposited by PACVD technology and magnetron sputtering method respectively were used. Observations of topography were made using atomic force microscope (AFM). Adhesion of the coating to the substrate material was verified by the scratch test. The friction coefficient and wear rate of the coating were determined in the ball-on-disc test. Findings: AFM as well as adhesion and friction coefficient tests confirmed low friction nature of MoS2 and DLC:Ti coatings. During the research information on the behaviour of coatings under tribological load was obtained. The investigated coating reveals high wear resistance and good adhesion to the substrate. Practical implications: The area of testing of low-friction thin films is widely studied due to their practical application. Intensive development of new technologies requires the introduction of corresponding layers of both full protective functions and reducing friction. Originality/value: Growing area of low-friction coatings with specific properties requires thorough tribological and topographical research, which is closely related to these properties.

Nucleation and growth of DC magnetron sputtered titanium diboride thin films

2006 ◽  
Vol 200 (12-13) ◽  
pp. 4078-4081 ◽  
Author(s):  
S.K. Mishra ◽  
P.K.P. Rupa ◽  
L.C. Pathak
Keyword(s):  
Thin Films ◽  
Titanium Diboride ◽  
Nucleation And Growth
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