Investigation Ha/β-TCP blasting and anodization effect and surface contact angle and topography

Abstract

Hydrophobic and hydrophilic surface properties are needed according to the industry field usage area such as medical, transport and energy sector. Depending on surface modification technique, surface wettability angles can be modified with changing surfaces chemistry, physical structures and energies. In this current study, HA/β-TCP blasting and anodization processes applied to Ti6Al4V ELI disc specimen. Also these specimen groups contact angles were measured for autoclaved and non-autoclaved conditions. Surface topographies were characterized with SEM-EDS, contact, stylus profilometer and optic profilometer. Moreover after blasting procedure the blasting media characterized with XRD in order to understand blasting procedure mechanism effect on abrasive and base material. Disc specimen roughness values increased to 1,92 μm value after blasting and decreased to 1,73 μm value after anodization process. The most hydrophilic surface determined as anodized surfaces for non-autoclaved condition. The most hydrophobic surface was characterized as the autoclaved blasted surfaces with the highest wettability angle.

Keywords

• Hydrophilic surface,Hydrophobic surface,Roughness,Contact angle

Ha/Β-TCP Kumlama ve Anodizasyon İşlemlerinin Yüzey Kontak Açısına ve Topografyasına Etkilerinin İncelenmesi

Abstract

Medikal, ulaşım, enerji gibi endüstriyel alanlarda birçok farklı kullanım amacına uygun olarak hidrofilik ve hidrofobik yüzey karakterlerine ihtiyaç duyulmaktadır. Farklı modifikasyon teknikleri kullanarak yüzeylerin kimyasal ve fiziksel yapıları, enerjileri değiştirilmekte ve buna bağlı olarak yüzeyin kontak açısı değiştirilmektedir. Bu çalışma kapsamında HA/β-TCP kumlama ve anodizasyon işlemi Ti64Al4V ELIdisk numunelere uygulanarak, otoklavlanmış ve otoklavlanmamış şartlar altında yüzeylerin sahip olduğu ıslanma değerleri kontak açısı ölçümleri ile tespit edilmiştir. Ayrıca numune gruplarının sahip olduğu topografyalar Taramalı Elektron Mikroskobu, Kontak Profilometre, Optik Profilometre ile incelenmiş, kumlama esnasında kullanılmış olan HA/β-TCP taneciklerinin içeriği X ışını kırınımı ile incelenmiştir. Disk numunelerin pürüzlülük değeri kumlama ile 1,92 μm değerine yükselirken anodizasyon sonrasında bu değer 1,73 μm değerine düşmüştür. Kumlama ve anodizasyon işlemi gerçekleştirilen numuneler en hidrofilik karaktere sahip numune grubu olarak tespit edilmiştir. Otoklav sonrasında kumlanmış numune grubu en yüksek ıslanma açısı ile hidrofobik karakterde tespit edilmiştir.

Keywords

• Hidrofilik yüzey,Hidrofobik yüzey,Pürüzlülük,Kontak açısı

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