The effect of fluorine oligomer coatings on the tribocontacts of a piezoelectric actuator

Padgurskas, Juozas; Žunda, Audrius; Andriušis, Albinas; Metrikaitė, D.; Jankauskas, Vytenis; Rukuiža, Raimundas; Bansevicius, R.

doi:10.3103/s1068366614010061

Cited by 6 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The frequency generator ( 9) and the amplifier (10) supplied the sinusoidal current of required amplitude and frequency to the piezoelectric element (2), exciting the standing wave effect. In the friction pair of the frictional element ( 5) and rotor (6), rotation torque appeared. The semi-automatic selection of the optimal excitation frequency was made according to the maximum rotation speed.…”

Section: Methodsmentioning

confidence: 99%

“…Applying of such a layer stabilized the rotation and continuous operation of the piezo-actuator and reduces the damage of the friction surface. In addition, the steel surface with a fluoroligomeric layer had a 20% higher elasticity compared to the non-coated surface [6].…”

Section: Introductionmentioning

confidence: 96%

“…Figure 1b shows that with the presence of the fluoroligomeric layer, plastic and elastic deformation is takes place, but adhesion and mechanical damage is absent. Fluoroligomeric film has certain properties: it is porous, has good adhesion to bulk body surfaces, changes the rheology of two-body contact, reducing the shearing forces, facilitates sliding with a lower friction coefficient, and decreases the surface damage of plastic deformation [6]. Fluoroligomeric film has certain properties: it is porous, has good adhesion to bulk body surfaces, changes the rheology of two-body contact, reducing the shearing forces, facilitates sliding with a lower friction coefficient, and decreases the surface damage of plastic deformation [6].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of Tribological and Mechanical Properties of Carbon Steel with Fluoroligomeric Film at Piezoelectric Actuator Contact

2022

View full text Add to dashboard Cite

The tribological investigations of carbon steel surfaces modified with fluoroligomeric materials were performed. Compared with the uncoated steel, the fluoroligomeric coated surface showed higher plasticity of the modified surface in the scratch tests where the fluoroligomeric film was not destroyed by higher loading. This could be explained by the lower micro hardness of the steel after processing by fluoroligomer and the influence of the adsorbic Rebinder effect. This study includes original results of the loading influence on the efficiency of the piezoelectric actuator and the wear value of the frictional element, which is important explaining the greater longevity of the piezoelectric actuator. Fluoroligomer treatment of the surface considerably improved the performance of the piezoelectric actuator. Using the reference steel roller in the piezoelectric actuator under minimum loads was characterized by a decrease in rotor speed with increasing the pressing of the frictional element. When the rotor was coated by fluoroligomer, the speed remained stable when increasing the pressing force. Using the reference steel roller, the rotation after short-term overloads was not restored, and rollers with fluoroligomeric surface started to rotate soon as the short-term overload was removed. The higher efficiency of piezoelectric actuators with a fluoroligomeric layer on the roller is related to almost two times lower wear of a friction element operating with coated rollers as compared to reference rollers.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Tribological and Mechanical Properties of Carbon Steel with Fluoroligomeric Film at Piezoelectric Actuator Contact

2022

View full text Add to dashboard Cite

show abstract

“…The enhancement of protective properties is due not only to the barrier effect, but also to the obstruction effect of structural aggregations of the coatings on the process of liquid extension on the surface of modified rubber. Padgurskas et al [13] have studied the effect of fluoropolymer material on the working conditions of flange rubber seals. The results showed that fluoroligomeric coatings applied in the friction pair of shaft-seal reduce the wear of seal and shaft to 68% and 74%, respectively, after 1,500 h of operation.…”

Section: Introductionmentioning

confidence: 99%

Modification of Cu‐PE‐PTFE composite coatings on rubber surface by low‐energy electron beam dispersion with glow discharge

Zhou

Liu

et al. 2017

Polymer Engineering & Sci

View full text Add to dashboard Cite

Polytetrafluoroethylene (PTFE) composite coatings doped with copper acetate and polyethylene (PE) were fabricated on rubber substrate by electron beam dispersion technique. The effects of dopant nature and glow discharge treatment on morphology, structural and tribological properties of the coatings were investigated. The results showed that Cu and PE doping change the surface structure of PTFE-based composite coatings due to the chemical reactions between the dispersion products. Cu-PE-PTFE coatings show the columnar and layered growth models without and with discharge treatment. Cu adding decreases the crystallinity, branched degree and unsaturated degree of PE coatings, but increases the branched degree and unsaturated bonds in the PE-PTFE coatings. Glow discharge enhances the crystallinity and ordering degree of composite coatings. Friction experiments indicated the significant difference of composite coatings in the nature of their destruction during friction. PE-PTFE coating is characterized of the brittle fracture with clear failure boundaries but Cu-PE-PTFE coating shows a rough surface without cracking and delaminating after friction. Cu doping increases the dynamic coefficient of friction of PE and PE-PTFE composite coatings, but discharge plasma decreases the dynamic coefficient of friction. Cu-PE-PTFE composite coating after discharge treatment has the decreased dynamic coefficient of friction and improved wear resistance. POLYM. ENG. SCI., 58:103-111, 2018.

show abstract

“…Recent studies have shown that polymer-SiO 2 composites combine the properties of a polymer matrix and a silicate filler, which imparts useful mechanical, thermal, tribologi cal, and other characteristics to them [3][4][5][6][7][8]. Thin antifriction coatings, in particular those based on flu orooligomer materials (epilams) and capabilities of their nanomodification are of specific research and practical interest [9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of thin coatings based on epilams modified by nanosized silica

et al. 2014

View full text Add to dashboard Cite

The results of studying the effect of the Tarkosil SiO 2 nanopowder on the tribological behavior of the steel-antifriction coating model systems are presented. The dependences of the coefficient of friction, the wear resistance, and the microhardness of the test specimens on the concentration of the silica nanopo wder in the thin coatings are obtained. It is shown that the modification of the coatings by 1% of silica favors an increase in their microhardness and a decrease in their coefficient of friction. At the limiting concentra tions of the nanosized filler and under heavy specific loads, the brittle fracture of the coatings occurs.

show abstract

The effect of fluorine oligomer coatings on the tribocontacts of a piezoelectric actuator

Cited by 6 publications

References 5 publications

Evaluation of Tribological and Mechanical Properties of Carbon Steel with Fluoroligomeric Film at Piezoelectric Actuator Contact

Evaluation of Tribological and Mechanical Properties of Carbon Steel with Fluoroligomeric Film at Piezoelectric Actuator Contact

Modification of Cu‐PE‐PTFE composite coatings on rubber surface by low‐energy electron beam dispersion with glow discharge

Tribological properties of thin coatings based on epilams modified by nanosized silica

Contact Info

Product

Resources

About