Şerit Döküm Yöntemiyle Tek Katmanlı ve Çok Katmanlı Yapıda Malzeme Üretimi

Şerit döküm yöntemi seramik, metal ve plastik malzemeler için ince şerit yapıların üretiminde kullanılan bir imalat tekniğidir. Sıvı faz üretim tekniği olarak sınıflandırılan şerit döküm yöntemi, diğer döküm yöntemlerinden teknik olarak ayrışmaktadır. Yöntemin işleyişi, havası alınmış döküm sıvısının altlık yüzey üzerine dökülerek Doctor Blade olarak da bilinen sıyırıcı bıçak yardımıyla istenen kalınlıkta katmanlar oluşturulmak üzere yüzeye yayılmasına dayanır. Döküm sürecince ya altlık yüzey hareketlidir ya da sıyırıcı bıçak hareketlidir. Döküm sıvısı; toz malzeme, çözücü, dağıtıcı, plastikleştirici ve bağlayıcı gibi sıvı içerisindeki dengeyi sağlayan birtakım bileşenlerden oluşur. Yüksek eş dağılımlı bir katman oluştuktan sonra çözücü buharlaştırılır ve geriye sağlam bir şerit kalır. Bu aşamada istenen özelliklere ya da kullanıma amacına göre şerit malzeme farklı işlemden geçirilerek süreç tamamlanır. Tek katmanlı ve çok katmanlı kompozit malzemelerin hazırlanmasında şerit döküm yöntemi yaygın olarak kullanılmaktadır. Bu yöntem, kolay uygulanabilir ve düşük maliyetli olması dolayısıyla, cazip bir uygulama metodu konumundadır. Bu çalışmada şerit döküm yöntemiyle tek katmanlı ve çok katmanlı ince malzemeler oluşturmak üzere yapılmış çalışmalar irdelenmiştir. Ayrıca Ti64 malzeme kullanılarak şerit döküm yöntemiyle ince katmanların üretilmesi için döküm sıvısının optimizasyonu ve döküm parametrelerinin belirlenmesi gerçekleştirilmiştir.

Anahtar Kelimeler:

Şerit döküm, tek katmanlı malzemeler, çok katmanlı malzemeler, Doctor Blade

Production of Single-Layer and Multi-Layer Structures by Tape Casting Method

The tape casting method is a technique used to produce thin films for ceramic, metal, and plastic materials. The tape casting method, classified as a liquid phase production technique, is technically different from other casting methods. The process is based on pouring the deaerated casting liquid onto the substrate and spreading it on the surface with the help of a scraper blade, also known as Doctor Blade, to form films of the desired thickness. During the casting process, either the substrate surface or the scraper blade is movable. Casting fluid; powder material consists of several components that balance the liquid, such as solvent, dispersant, plasticizer, and binder. The solvent evaporates after forming a uniform layer, and a solid tape remains. At this stage, the tape material is processed differently depending on the desired properties or the purpose of use, and the process is completed. Tape casting method is widely used in the preparation of single-layer and multi-layer composite materials. This method is an attractive application method because it is easily applicable and low-cost. In this study, studies carried out to create single-layer and multi-layer thin materials by tape casting method were examined. In addition, optimization of the casting fluid and determination of casting parameters were carried out to produce thin layers by tape casting method using Ti64 material.

Keywords:

Tape casting, single-layer structures, multi-layer structures, Doctor Blade,

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