Production and characterization of porous ceramics for aircraft arresting systems
Çapraz, Furkan, author.

Production and characterization of porous ceramics for aircraft arresting systems

Çapraz, Furkan, author.

Yazar Ek Girişi
Çapraz, Furkan, author.

Fiziksel Tanımlama
xi, 60 leaves: color illustraltions, charts;+ 1 computer laser optical disc.

Despite developments in aviation, accidents still occur and lead to loss of lives. Technical or environmental factors may cause overrun accidents. In the case of aircraft that fail to stop along the runway distance during take-off or landing, such accidents are called overrun. Aircraft stopping systems (AAS) are passive safety systems used to prevent to take damage of passengers and aircraft during overrun. In the literature, foamed concrete was generally used as the AAS material. However, some studies have also been carried out on other materials that may be used as the AAS material. In present thesis, the aim was to produce porous calcium silicates instead of foamed concrete in AAS. The slip casting method was used to produce porous calcium silicate monoliths. The main components used in the manufacturing of porous wollastonite were xonotlite (as a matrix material), polymethyl methacrylate (as a sacrificial pore former, PMMA), polyvinyl alcohol (as a binder, PVA), Dolapix CE 64 (as a dispersing agent) and distilled water. Three different xonotlite ratios (8, 9 and 10% by volume) have been studied with four different xonotlite/ PMMA ratios (1, 0.82, 0.54 and 0.33 by volume). Also, specimens without PMMA were produced for each xonotlite ratio. The suspensions were stirred for 3 h at 750 rpm and then casted into the gypsum mold. The samples which were dried at room temperature (RT) were heat treated at 1000 oC. After production step microstructural, structural and mechanical analysis o the porous calcium silicates were carried out. Cold Crushing Strength (CCS) tests were performed out for determining mechanical properties. CCS values of the porous monolith parts ranged between 1376 kPa and 53.2 kPa depending on xonotlite/ PMMA ratios. In addition, the porosity values ranged from 93.38 to 87.82%. The resuts showed that some of these porous calcium silicate monoliths are suitable to use instead of foamed concrete as the AAS material.

Konu Başlığı
Porous materials.
Ceramic materials.
Landing aids (Aeronautics)
Airplanes -- Landing -- Safety measures.

Yazar Ek Girişi
Ahmetoğlu, Çekdar Vakıf

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Materials Science and Engineering.

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology: Materials Science and Engineering.
İzmir Institute of Technology: Materials Science and Engineering--Thesis (Master).

Elektronik Erişim
Access to Electronic Versiyon.

LibraryMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTE LibraryTezT001950TA418.9.P6 C25 2019Tez Koleksiyonu