Biyomedikal Uygulamalar için T/M Yöntemiyle Üretilen Özel Tasarım Kontrollü Gözenekli İmplantların Temel Özelliklerinin Araştırılması

Abstract

Bu çalışma; biyomedikal uygulamalar için toz metalurjisi (T/M) yöntemi ile üretilen implant benzeri gözenekli saf titanyum malzemelerin üretimini araştırmaktadır. Malzeme, kemik uyumu ve mukavemeti artırmak için tasarlanmış katı bir titanyum çekirdek ve gözenekli bir titanyum dış katmandan oluşmaktadır. Gözenekli yapı oluşturmak amacı ile Magnezyum tozu (50 µm) ağırlıkça %10, 20 ve 30 oranlarında kullanılmıştır. Numuneler argon atmosferinde 1000°C, 1100°C ve 1200°C'de farklı sürelerde (60, 90 ve 120 dakika) sinterlenmiş ve Magnezyum çıkarılmıştır. Deneysel çalışma; çekme test cihazında çekerek sıyırma testi ile gerçekleştirilmiştir. Sinterleme sıcaklığı, süresi ve tane boyutunun etkileri Taguchi yöntemiyle analiz edilmiştir. Eklem kalitesini değerlendirmek ve mukavemeti optimize etmek için ANOVA ve Sinyal-Gürültü (S/N) oranı analizleri uygulanmıştır. Bulgular, yüksek mukavemetli gözenekli titanyum implantlar için uygun maliyetli tasarım parametrelerinin anlaşılmasına katkıda bulunarak işleme koşullarının mekanik performans üzerindeki etkisini vurgulamaktadır.

Keywords

• Gözenekli yapı
• Titanyum
• Toz metalürjisi
• Taguchi Yöntemi

Investigation Basic Properties of Custom Designed Controlled Porous Implants Produced by P/M Method for Biomedical Applications

Abstract

This study investigates the production of implant-like porous pure titanium materials for biomedical applications, produced by powder metallurgy (T/M). The material consists of a solid titanium core and a porous titanium outer layer designed to enhance bone conformability and strength. Magnesium powder (50 µm) was used in proportions of 10, 20 and 30 wt% to create the porous structure. The samples were sintered in argon atmosphere at 1000°C, 1100°C and 1200°C for different times (60, 90 and 120 minutes) and Magnesium was removed. The experimental work was carried out by tensile stripping test in a tensile testing machine. The effects of sintering temperature, time and grain size were analyzed by Taguchi method. ANOVA and Signal-to-Noise (S/N) ratio analyses were applied to evaluate joint quality and optimize strength. The findings contribute to the understanding of cost-effective design parameters for high-strength porous titanium implants, highlighting the influence of processing conditions on mechanical performance.

Keywords

• Porous structure
• Titanium
• Powder metallurgy
• Taguchi Method

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