Impact of the SiC addition on the morphological, structural and mechanical properties of Cu-SiC composite powders prepared by high energy milling

被引：24

作者：

Camara, Nailton T. ^{[1
,2
]}

Raimundo, Rafael A. ^{[3
,4
]}

Lourenco, Cleber S. ^{[5
]}

Morais, Luis M. F. ^{[1
]}

Silva, David D. S. ^{[6
]}

Gomes, Rodinei M. ^{[3
]}

Morales, Marco A. ^{[4
]}

Macedo, Daniel A. ^{[7
]}

Gomes, Uilame U. ^{[4
,5
]}

Costa, Francine A. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Norte, Mech Engn Postgrad Program, BR-59078970 Natal, RN, Brazil

[2] IFRN, Fed Inst Educ Sci & Technol Rio Grande do Norte, Caico 59291727, Egypt

[3] Univ Fed Paraiba, Mech Engn Postgrad Program, BR-58051900 Joao Pessoa, Paraiba, Brazil

[4] Univ Fed Rio Grande do Norte, Dept Theoret & Expt Phys, BR-59078970 Natal, RN, Brazil

[5] Univ Fed Rio Grande do Norte, Mat Sci & Engn Postgrad Program, BR-59078970 Natal, RN, Brazil

[6] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn, BR-13565905 Sao Carlos, Brazil

[7] Univ Fed Paraiba, Mat Sci & Engn Postgrad Program, BR-58051900 Joao Pessoa, Paraiba, Brazil

来源：

ADVANCED POWDER TECHNOLOGY | 2021年 / 32卷 / 08期

关键词：

High Energy Milling (HEM); Cu-SiC composite powder; Microstructure; Magnetic properties; Mechanical property; HIGH-TEMPERATURE STABILIZATION; SILICON-CARBIDE; NANOCOMPOSITE POWDERS; ELECTRICAL-PROPERTIES; TIC COMPOSITES; PARTICLE-SIZE; HIGH-STRENGTH; MICROSTRUCTURE; WEAR; PERFORMANCE;

D O I：

10.1016/j.apt.2021.06.006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effect of the SiC content on the microstructural, mechanical, and magnetic properties of Cu(1 -x)SiC (x) composite powders (x = 0, 2, 10 and 15 wt%) prepared by high energy milling for 30 h was investi-gated. The results showed that Cu particles were severely deformed and formed plate like particles of dif-ferent sizes, while SiC particles were fragmented and embedded in the Cu phase, thus, forming composite particles. As the SiC content increased, the average particle size decreased from 40.75 to 12.84 mm. Besides, XRD data showed a decrease in the crystallite sizes of the Cu phase (from 23.66 to 21.56 nm), accompanied by an increase in the lattice micro-strain (from 0.41 to 0.46%). Changes in the lattice param-eters of the Cu phase were observed. The Vickers microhardness were measured in compacted powder samples and reached a maximum value of 135.22 HV for the sample with 15 wt% SiC. The samples showed hysteresis magnetic behavior at 300 K, and with a maximum saturation magnetization of 0.123 emu/g. The weak magnetic signal is mainly due to Co impurities present in the WC from the milling media. (c) 2021 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

引用

页码：2950 / 2961

页数：12

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