Preparation and characterization of bronze/SiCp composites produced via current activated sintering method
Yükleniyor...
Dosyalar
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, bronze matrix was reinforced with nickel coated nano SiC particles using mechanical alloying and then subsequent rapid current sintering technique. Mechanical ball milling of bronze matrix composite powders were performed with 1.0, 3.0 and 5.0 vol% SiC nanoparticle reinforcements. The composite powders were cold compacted under constant pressure of 150 MPa. The compacted structures were sintered at atmospheric conditions almost to the full density within 10 min using current sintering, in which the powders were heated by a low voltage and high amperage current and compressed simultaneously to achieve dispersion of nano SIC particles. The samples were sintered at 900 A current to eliminate porosities and agglomeration of particles. The porosity of the produced samples were reduced from 9.49% to 6.13% respectively for the uncoated and coated 5.0 vol% SiC reinforced nanocomposites. Microhardness testing and scanning electron microscopy (SEM) were used for the microstructural characterization of the composites. Rapid sintering was also thought to be an advantage to eliminate volume increment seen under conventional atmospheric sintering conditions. (C) 2015 Elsevier Ltd. All rights reserved.
Açıklama
4th International Advances in Applied Physics and Materials Science Congress & Exhibition (APMAS) -- APR 24-27, 2014 -- Doga Nanobiotech Inc, Oludeniz, TURKEY
WOS: 000357839800061
WOS: 000357839800061
Anahtar Kelimeler
Nano metal matrix composite, Rapid current sintering, Bearing alloy, Hardness
Kaynak
Materials Science In Semiconductor Processing
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
38
