Dry sliding wear mechanism of spark plasma sintered Si3N4/SiC composites on steel
Yükleniyor...
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Walter de Gruyter GmbH
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In the present work, Si3N4-based composites were characterized by a relatively low friction coefficient in unlubricated sliding against a 100Cr6 steel ball. Si3N4-based composites containing different amounts of SiC were produced by spark plasma sintering at 1650 degrees C for 5 min with a uniaxial pressure of 40 MPa in a nitrogen atmosphere. In the wear test, the load, total distance and rotating speed were selected as 60 N, 120 m and 500 rpm, respectively. The wear tracks were examined by scanning electron microscopy (SEM) to estimate the wear mechanism. The results were evaluated using the friction coefficient-distance diagram. Si3N4-based composites showed significant decrement in wear by improving toughness with SiC powder reinforcement.
Açıklama
Anahtar Kelimeler
Materials Testing, Silicon Nitride, Silicon Carbide, Spark Plasma Sintering, Wear
Kaynak
Materials Testing
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
56
Sayı
11-12