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80253

FRICTION COEFFICIENT OF GROOVED RUBBER DISC SLIDING AGAINST CERAMICS: III. EFFECT OF THE GROOVES

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Last updated: 25 Dec 2024

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Abstract

The present research investigates the effect of grooves introduced in the rubber surface on the static friction coefficient when sliding against ceramic surface. Rubber test specimens were prepared from two types of rubber of 2 and 8 MPa modulus of elasticity and 27 and 53 hardness Shore-A. The specimens have a cylindrical shape of 36 mm diameter and 10 mm high. Test specimens were prepared by introducing different grooves with different dimensions. The ceramic surface roughness was 0.14 µm Ra.
 
Friction tests were carried out at 150 N normal load. Tests were carried out at dry sliding conditions as well as lubricated surfaces were lubricated by water, sand, water contaminated by sand, water and detergent, water and detergent contaminated by sand, oil, oil contaminated by sand, oil mixed by water, oil mixed by water and contaminated by sand.
 
Based on the experimental results, it was found that at dry sliding test specimens of triple grooves showed the highest friction coefficient for soft rubber. In the presence of water friction coefficient of hard rubber of double grooves displayed significant friction increase. In presence of water contaminated by sand friction coefficient showed significant increase for soft rubber of triple and quadruple grooves. Friction coefficient of soft and hard rubber of quadruple grooves sliding against ceramic surfaces wetted by water and detergent showed relatively high friction. Introducing quadruple grooves in hard rubber increased friction coefficient generated from the sliding against oil lubricated ceramics. For surfaces lubricated by oil/water dilution friction coefficient showed remarkable increase.

DOI

10.21608/jest.2014.80253

Keywords

Friction coefficient, rubber disc, grooves, Ceramics

Authors

First Name

A. M.

Last Name

Samy

MiddleName

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Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT

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Orcid

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First Name

M. I.

Last Name

Khashaba

MiddleName

-

Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT

Email

-

City

-

Orcid

-

First Name

W. Y.

Last Name

Ali

MiddleName

-

Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT

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Orcid

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Volume

11

Article Issue

3

Related Issue

12043

Issue Date

2014-07-01

Receive Date

2014-01-03

Publish Date

2014-07-01

Page Start

1

Page End

18

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 11_Issue 3_Pages 1-18.pdf

PDF . 465.7kB

Link

https://jest.journals.ekb.eg/article_80253.html

Detail API

https://jest.journals.ekb.eg/service?article_code=80253

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Original Article

Type Code

1,211

Publication Type

Journal

Publication Title

Journal of the Egyptian Society of Tribology

Publication Link

https://jest.journals.ekb.eg/

MainTitle

FRICTION COEFFICIENT OF GROOVED RUBBER DISC SLIDING AGAINST CERAMICS: III. EFFECT OF THE GROOVES

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Article

Created At

22 Jan 2023