Publication: Mikron Altı Bor Karbür Katkısının Ve Reaksiyon Sinterlemenin Bor Karbür-titanyum Diborür Kompozitlerine Etkilerinin İncelenmesi
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Üretim Metalurjisi
Manufacturing
Manufacturing
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Fen Bilimleri Enstitüsü
Institute of Science and Technology
Institute of Science and Technology
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Bu çalışmada, mikron altı partikül boyutlarında bor karbür katkısı ve reaksiyon sinterleme yöntemleri ile bor karbür, titanyum diborür ve bor karbür, titanyum dioksit ve elementel karbonun reaksiyonu ile sıcak preste hacimce %85 B4C - %15 TiB2 oranına sahip kompozitler üretilip; mikron altı bor karbür katkısının ve reasiyon sinterlemenin B4C-TiB2 kompozitlerinin mekanik ve fiziksel özelliklerine etkisi incelenmiştir. Yapılan deneyler sonucunda; mikron altı bor karbür katkısı ile numunelerin sertlik ve kırılma mukavemeti değerlerinde önce artış daha sonra ise azalma gözlenmiştir. Reaksiyon sinterleme ile üretilen numunelerde ise mikron altı bor karbür katkısı ile sertlik ve kırlıma mukavemeti değerlerinde önce azalma daha sonra ise artış gözlenmiştir.
In this study, %85B4C - %15TiB2 ratio by volume composites are produced in hot press with reaction sintering method of boron carbide, titanium dioxide and carbon and with the addition of sub micron particle size boron carbide and titanium diboride; in addition to these, the effects of the addition of sub micron boron carbide and reaction sintering on the mechanical and physical properties of B4C-TiB2 composites were examined. Results of the experiments; with the addition of the sub micron boron carbide, first an increase than a decrease was observed on the hardness and the fracture toughness properties of the samples. On the other hand, first a decrease than an increase was observed on the hardness and fracture toughness properties of reaction sintered samples with the addition of sub micron boron carbide.
In this study, %85B4C - %15TiB2 ratio by volume composites are produced in hot press with reaction sintering method of boron carbide, titanium dioxide and carbon and with the addition of sub micron particle size boron carbide and titanium diboride; in addition to these, the effects of the addition of sub micron boron carbide and reaction sintering on the mechanical and physical properties of B4C-TiB2 composites were examined. Results of the experiments; with the addition of the sub micron boron carbide, first an increase than a decrease was observed on the hardness and the fracture toughness properties of the samples. On the other hand, first a decrease than an increase was observed on the hardness and fracture toughness properties of reaction sintered samples with the addition of sub micron boron carbide.
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Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2010
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2010
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2010
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İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
Keywords
Bor karbür, titanyum diborür, sıcak pres, reaksiyon sinterleme, Boron carbide, titanium diboride, hot press, reaction sintering
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