Elektroforetik Yöntem Kullanılarak Mg-AZ 31 Alaşımının Go/Hap ile Kaplanması ve Sinterleme Sıcaklığının Yüzeyin Mikroyapısına Etkilerinin İncelenmesi

Year 2019, Volume: 10 Issue: 3, 959 - 967, 29.09.2019

Erkan Bahçe

https://doi.org/10.24012/dumf.521342

Abstract

Mg ve alaşımları, sahip oldukları yüksek
biyouyumluluk, kemiğe yakın elastisite modülü, kemik gelişimine yardımcı
olması, gibi özellikleri nedeniyle biyomedikal alanda kullanım açısından ilgi
çekmektedir. Ancak Mg elementinin korozyona olan yüksek afinitesi, vücut sıvısı
içerisinde bu alaşımların uzun süreli kalıcı implant malzemesi olarak
kullanımını sınırlandırmaktadır.  Bu
nedenle bu alaşımların biyomalzeme olarak uzun süreli kullanımlarını
sağlayabilmek ve biyouyumluluk, biyoaktivite gibi özelliklerini geliştrimek
için yüzeyleri kaplanmaktadır. Bu çalışmada Mg AZ31 alaşımı üzerine korozyon
dayanımını ve biyoaktivitesini artırmak amaçlı elektroforetik yöntemle
(Hidroksi apatit) HAp/ GO (Grafen oksit) kompoziti kaplanılmıştır. Kaplama
işlemi sonrası 3 farklı sıcaklıkta sinterleme yapılarak sinterleme sıcaklığının
film tabakasının mikroyapısı üzerindeki etkileri SEM, XRD ile incelenmiştir.  

Keywords

Mg-AZ31, Elektroforetik, Sinterleme, Grafen oksit, Hidroksi apatit

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