INVESTIGATION OF THE EFFECT OF SOLID LUBRICANT ADDITIVE IN EPOXY MATRIX COMPOSITES ON THE REDUCING OF FRICTION LOSS

Öz

   In this study, the effect of epoxy matrix composite on the wear resistance was investigated by adding the lubricator graphite filler element in high amounts (25-52% by volume) of epoxy matrix. Epoxy matrix composites are produced by open molding technique. 3-point bending strength, bending modulus, hardness and density measurements of graphite-filled composites were carried out and microstructure developments were examined. Wear tests were carried out at room temperature under a 5N load, in a ball-on-disc wear device up to a wear distance of 200m. The effects of physico-mechanical properties and microstructure development on wear behavior were investigated. As a result, the best abrasion resistance was obtained in 30% graphite added composite material.

Anahtar Kelimeler

• Solid Lubricant,Composite Materials,Graphite,Epoxy

EPOKSİ MATRİSLİ KOMPOZİTLERDE KATI YAĞLAYICI İLAVESİNİN SÜRTÜNME KAYBININ AZALTILMASINA ETKİSİNİN İNCELENMESİ

Öz

   Yapılan çalışmada yağlayıcı özelliği bulunan grafit dolgu elemanının yüksek miktarlarda (hac.%25-52) epoksi matris içerisine ilave edilmesiyle epoksi matrisli kompozitin aşınma direnci üzerine etkisi araştırılmıştır. Epoksi matrisli kompozitler açık kalıplama tekniği ile üretilmiştir. Grafit dolgulu kompozitlerin 3 noktalı eğme mukavemeti, eğme modulü, sertlik, yoğunluk ölçümleri yapılmış ve mikroyapı gelişimleri incelenmiştir. Aşınma testleri 5N yük altında, 200m aşınma mesafesine kadar ball-on-disk aşınma cihazında, oda sıcaklığında gerçekleştirilmiştir. Fiziko-mekanik özelliklerin ve mikroyapı gelişiminin aşınma davranışı üzerine etkisi araştırılmıştır. Sonuç olarak en iyi aşınma direnci %30 grafit katkılı kompozit malzemede elde edilmiştir. 

Anahtar Kelimeler

• Katı Yağlayıcı,Kompozit Malzemeler,Grafit,Epoksi

Kaynakça

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