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216106

HARDNESS AND FRICTIONAL BEHAVIOUR OF DENTAL HYBRID COMPOSITE RESIN FILLED BY SILICON CARBIDE NANOFIBERS

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Last updated: 25 Dec 2024

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Abstract

The objectives of the present investigation is to determine the effect of light curing time on the hardness and friction coefficient of composite resin filled with (SiC NFs). The materials used are hybrid composite resin and SiC NFs. Four groups of composite resin specimens are prepared; one as received and three groups reinforced by SiC NFs in concentrations of 0.1, 0.2 and 0.3 wt. %. SiC NFs are manually mixed with hybrid composites resin. The resulting paste is packed into plastic bars. The specimens are then cured from both sides for 40, 60 and 99 seconds using a visible light curing unit. Surface hardness is measured using Shore D durometer test. The coefficient of friction is determined using two-body abrasion test.
 It was found that high curing times gave higher hardness values and moderate friction coefficient compared to low curing times. The minimum content of SiC NFs (0.1 wt. %) improved the hardness and frictional behavior. Based on that, it may be concluded that hardness and friction coefficient are significantly affected by curing times and SiC NFs concentrations.

DOI

10.21608/jest.2022.216106

Keywords

Silicon carbide nanofibers, hybrid composite resin, curing times, Friction coefficient, shore hardness

Authors

First Name

A. K.

Last Name

Ameer

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Affiliation

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

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First Name

A. M.

Last Name

Samy

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Affiliation

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

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Orcid

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First Name

W. Y.

Last Name

Ali

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-

Affiliation

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

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City

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Orcid

-

First Name

A. A.

Last Name

Meshref

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-

Affiliation

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

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Volume

19

Article Issue

1

Related Issue

30427

Issue Date

2022-01-01

Receive Date

2021-08-17

Publish Date

2022-01-01

Page Start

28

Page End

40

Print ISSN

2090-5882

Online ISSN

2090-5955

Link

https://jest.journals.ekb.eg/article_216106.html

Detail API

https://jest.journals.ekb.eg/service?article_code=216106

Order

3

Type

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

HARDNESS AND FRICTIONAL BEHAVIOUR OF DENTAL HYBRID COMPOSITE RESIN FILLED BY SILICON CARBIDE NANOFIBERS

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Article

Created At

22 Jan 2023