Effect of graphene platelets on tribological properties of boron carbide ceramic composites

被引：49

作者：

Sedlak, Richard ^{[1
,2
]}

Kovalcikova, Alexandra ^{[1
]}

Balko, Jan ^{[1
]}

Rutkowski, Pawel ^{[3
]}

Dubiel, Aleksandra ^{[3
]}

Zientara, Dariusz ^{[3
]}

Girman, Vladimir ^{[4
]}

Mudra, Erika ^{[1
]}

Dusza, Jan ^{[1
,5
]}

机构：

[1] Slovak Acad Sci, Div Ceram & Nonmetall Syst, Inst Mat Res, Watsonova 47, Kosice 04001, Slovakia

[2] Tech Univ Kosice, Fac Met, Letna 9, Kosice 04001, Slovakia

[3] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Dept Ceram & Refractories, Al A Mickiewicza 30, PL-30059 Krakow, Poland

[4] Pavol Jozef Safarik Univ Kosice, Fac Sci, Inst Phys, Dept Condensed Matter Phys, Pk Angelinum 9, Kosice 04001, Slovakia

[5] Obuda Univ, Donat Banki Mech & Safety Engn, Nepszinhaz Utca 8, H-1081 Budapest, Hungary

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2017年 / 65卷

关键词：

Ceramic matrix composites; Boron carbide; Graphene platelets; Microstructure; Friction; Wear; MECHANICAL-PROPERTIES; CARBON NANOTUBES; B4C CERAMICS; WEAR; MICROSTRUCTURE; DENSIFICATION; TOUGHNESS; BEHAVIOR; MATRIX;

D O I：

10.1016/j.ijrmhm.2016.11.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The friction and wear behaviour of hot pressed boron carbide/graphene platelets (GPLs) composites have been investigated using the ball-on-flat technique with SiC ball under dry sliding conditions at room temperature. The hardness and fracture toughness of the investigated materials varied from 18.21 GPa to 30.35 GPa and from 3.81 MPa.m(1/2) to 4.60 MPa.m(1/2), respectively. The coefficient of friction for composites were similar, however the wear rate significantly decreased similar to 77% in the case of B4C + 6 wt.% GPLs when compared to reference material at a load of 5 N, and similar to 60% at a load of 50 N. Wear resistance increased with increasing GPLs content in regards to the present graphene platelets, which during the wear test pulled-out from the matrix, exfoliated and created a wear protecting graphene-silicon based tribofilm. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：57 / 63

页数：7

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