IN SITU ALUMINUM METAL MATRIX COMPOSITES and THEIR PRODUCTION BY HOT PRESSING

Yıl 2015, Cilt: 5 Sayı: 2, 63 - 73, 12.02.2016

Metin Önal , Mehmet Gavgalı

Öz

In situ metal matrix composites (MMCs) are multiphase materials that reinforcing phases are synthesised in the metal matrix by chemical reactions during fabrication. MMCs preferred particles as the reinforcements are widely used in weight-sensitive aerospace, industrial sectors and transportation. They can be produced by various methods such as mechanical alloying, exothermic dispersion, self-propagating hightemperature synthesis. The other production method is hot pressing method. Through the hot pressing which sintering and compression process is applied simultaneously can be achieved more dense composite materials.

Anahtar Kelimeler

Hot pressing, in situ, particle, phase

IN SITU ALÜMİNYUM METAL MATRİSLİ KOMPOZİTLER ve SICAK PRESLEME İLE ÜRETİMLERİ

Öz

In situ metal matrisli kompozitler (MMK), takviye fazlarının üretim esnasında metal matris içerisinde kimyasal reaksiyonlarla sentezlendiği çok fazlı malzemelerdir. Kuvvetlendirici olarak partiküllerin tercih edildiği MMK'ler ağırlığa duyarlı havacılıkta, endüstriyel sektörlerde ve ulaşımda yaygın olarak kullanılmaktadırlar. Mekanik alaşımlama, ekzotermik dispersiyon, kendiliğinden yayılan yüksek sıcaklık sentezi gibi çeşitli yöntemlerle üretilebilirler. Sıcak presleme ise bir diğer üretim yöntemidir. Sinterleme ve sıkıştırma işleminin aynı anda uydulandığı sıcak presleme sayesinde daha yoğun kompozit malzemeler elde edilebilmektedir.

Anahtar Kelimeler

Sıcak presleme, in situ, partikül, faz

Kaynakça

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