Dry sliding wear mechanism of spark plasma sintered Si3N4/SiC composites on steel

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Küçük Resim

Tarih

2014

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

Künye