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Microstructure and Hardness Properties of Ni-Si3N4 Composite Materials Produced by Powder Metallurgy Method     
Yazarlar (3)
Hasaneen Houssain
Prof. Dr. Serkan ISLAK Prof. Dr. Serkan ISLAK
Kastamonu Üniversitesi, Türkiye
Uğur Çalıgülü
Fırat Üniversitesi, Türkiye
Devamını Göster
Özet
In this study, the effect of the amount of Si3N4 on the microstructure and hardness properties of nickel (Ni) matrix silicon nitride (Si3N4) reinforced composite materials were investigated. Si3N4 was added to Ni at 5%, 10% and 15% by volume. The samples were produced using cold pressing and pressureless sintering technique. The sintering temperature was 1200 °C and the sintering time was 1 hour. SEM-EDS and XRD analyzes were used for the microstructure and phase formation analysis of the composites. The densities of the composites were measured according to the Archimedean principle. To determine the effect of Si3N4 on hardness properties, the microhardness of the samples was measured as Vickers. It was determined from XRD analysis that Ni, β1 (Ni3Si) and ε-Ni3Si2 phases were formed in the microstructure. As the amount of Si3N4 increased, both the experimental densities and relative densities decreased, and the amount of pores partially increased. Due to the distribution strengthening effect of Si3N4 in the Ni matrix, there was an increase in the hardness values and the highest hardness was determined as 135 HV2 with the addition of 15% Si3N4.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü Diğer hakemli uluslarası dergilerde yayınlanan tam makale
Dergi Adı Kastamonu University Journal of Engineering and Sciences (KUJES)
Dergi ISSN 2667-8209
Dergi Tarandığı Indeksler Index Copernicus
Makale Dili İngilizce
Basım Tarihi 12-2023
Cilt No 9
Sayı 2
Sayfalar 67 / 72
Doi Numarası 10.55385/kastamonujes.1357436
Makale Linki https://dergipark.org.tr/en/pub/kastamonujes/issue/81556/1357436