Mechanical Engineering / Makina Mühendisliği

Permanent URI for this collectionhttps://hdl.handle.net/11147/4129

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  • Conference Object
    Effect of Blending Conditions on the Properties of Epdm/Organoclay Nanocomposites
    (IOM Communications Ltd., 2009) Karşal, Çiçek; Tanoğlu, Metin; Odabaş, Sibel; Ersoy, Osman G.; Karakaya, Nursel
    The effects of blending conditions on the microstructural and mechanical properties of EPDM / organo modified montmorillonite (OMMT) nanocomposites at various clay loadings were investigated. The effects of the processing conditions were manifested in both the morphology and mechanical properties, which showed significant increase when optimized process conditions are applied.
  • Conference Object
    Alüminyum Kapalı Hücreli Köpüklerin Toz Metalürjisi Yönetimi ile Üretilmesi
    (Pamukkale Üniversitesi, 2004) Güden, Mustafa; Kavi, Halit; Toksoy, Ahmet Kaan
    Son şekle yakın Alüminyum kapalı hücreli yapılar, örneğin otomobil tampon ve kapıları, tabletlerin köpükleştirilmesi metodu olarak bilinen toz metalürjisi yöntemi ile hazırlanmaktadır. Metot tozların karıştırılması, sıcak preslenmesi ve elde edilen toz tabletlerin kullanılan alaşımın ergime sıcaklığının üstüne ısıtılması suretiyle köpükleştirilmesi süreçlerinden oluşmaktadır. Bu çalışmada, toz metalürjisi metodu ile kapalı hücreli alüminyum köpük metal üretim parametreleri ve üretim sonucu ortaya çıkan mikroyapılar, köpüğün yoğunluğuna bağlı mekanik özellikleri ile birlikte özetlenmektedir. Son olarak, alüminyum köpük metalin yuvarlak tüplerde dolgu malzemesi olarak kullanımına yönelik deneysel çalışmaların sonuçları otomobil ezilme kutularında kullanımına yönelik örnek olarak verilmiştir.
  • Book Part
    Citation - WoS: 21
    Citation - Scopus: 24
    Metals Foams for Biomedical Applications: Processing and Mechanical Properties
    (Springer, 2004) Güden, Mustafa; Çelik, Emrah; Çetiner, Sinan; Aydın, Alptekin
    Optimized structures found in nature can be sometimes imitated in engineering structures. The recent interest in functionally graded metallic materials makes bone structures interesting because bones are naturally functionally graded1. The cellular structure of foam metals (Fig.1) is very similar to that of the cancellous bone; therefore, these metals can be considered as potential candidates for future implant applications if porosity level, size and shape, strength and biocompatibility aspects satisfy the design specifications of implants. Foam metals based on biocompatible metallic materials (e.g. Ti and Ti-6A1-4V) are expected to provide better interaction with bone. This is mainly due to higher degree of bone growth into porous surfaces and higher degree of body fluid transport through three-dimensional interconnected array of pores2 (open cell foam), leading to better interlocking between implant and bone and hence reducing or avoiding the well-known implant losening. Furthermore, the elastic modulus of foam metals can be easily tailored with porosity level to match that of natural bone, leading to a better performance by avoiding the high degree of elastic mismatch which currently exists between conventional solid metallic implants and bone.