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Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2026 / Cilt: 24 Sayı: 2

B2O3 Effect on Tribological Properties of Bronze Based Ceramic Reinforced Brake Pads Produced by Electric Current Assisted Sintering Method

Elektrik Akımı Destekli Sinterleme Yöntemi ile Üretilen Bronz Esaslı Seramik Takviyeli Fren Balatalarının Tribolojik Özelliklerine B2O3 Etkisi

Nuri Ergin(Sakarya Uygulamalı Bilimler Üniversitesi)0000-0001-9025-9419
Bora Çalışkanöztürk(SAKARYA UYGULAMALI BİLİMLER ÜNİVERSİTESİ)0000-0002-8266-1069
Yasin Çipil(SAKARYA UYGULAMALI BİLİMLER ÜNİVERSİTESİ)0000-0002-1414-2486
Necati Koçak(SAKARYA UYGULAMALI BİLİMLER ÜNİVERSİTESİ)0000-0002-0768-3479
Mehmet Uysal(SAKARYA ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, METALURJİ VE MALZEME MÜHENDİSLİĞİ BÖLÜMÜ)0000-0002-9396-7450
Özkan Özdemir(SAKARYA UYGULAMALI BİLİMLER ÜNİVERSİTESİ)0000-0003-2366-8196
Pages
400–407
Publication Date
2024-04-29
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

While relative densities of 98.26%, 98.97% and 98.08% were obtained in samples with 2%, 4% and 6% B2O3 by weight, respectively, the hardness values were determined as 258, 402 and 385 Hv, the friction coefficient was approximately 0.67, 0.51 and 0.72, and the wear rates were approximately It was determined as 0.83, 0.46 and 1.1 mm3/Nm.

📌 3 Key Takeaways

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Objective & Hypothesis:Within the scope of this study, it is aimed to produce brake pads for military vehicles operating in difficult terrain conditions, especially tanks.
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Key Findings & Data:Using Bronze (Cu, 11% Sn), Al2O3, B2O3 and graphite powder, whose powder sizes vary between 3-45 μm, as starting materials, bronze-based brake pads were manufactured by the ECAS method with a waiting time of 8 minutes in the current range of 900-1200A.
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Conclusion & Impact:While relative densities of 98.26%, 98.97% and 98.08% were obtained in samples with 2%, 4% and 6% B2O3 by weight, respectively, the hardness values were determined as 258, 402 and 385 Hv, the friction coefficient was approximately 0.67, 0.51 and 0.72, and the wear rates were approximately It was determined as 0.83, 0.46 and 1.1 mm3/Nm.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:ECAS · B2O3 · Balata

Abstract

Within the scope of this study, it is aimed to produce brake pads for military vehicles operating in difficult terrain conditions, especially tanks. Using Bronze (Cu, 11% Sn), Al2O3, B2O3 and graphite powder, whose powder sizes vary between 3-45 μm, as starting materials, bronze-based brake pads were manufactured by the ECAS method with a waiting time of 8 minutes in the current range of 900-1200A. Properties of the produced samples; It was determined by metallographic (SEM) examinations, phase analysis (XRD, SEM-EDS), density, hardness and wear studies. While relative densities of 98.26%, 98.97% and 98.08% were obtained in samples with 2%, 4% and 6% B2O3 by weight, respectively, the hardness values were determined as 258, 402 and 385 Hv, the friction coefficient was approximately 0.67, 0.51 and 0.72, and the wear rates were approximately It was determined as 0.83, 0.46 and 1.1 mm3/Nm.

Özet

Bu çalışma kapsamında başta tanklar olmak üzere zorlu arazi şartlarında görev yapan askeri araçlar için balata üretimi hedeflenmiştir. Toz boyutları 3-45 μm aralığında değişim gösteren Bronz (Cu, %11 Sn), Al2O3, B2O3 ve grafit tozu başlangıç malzemesi olarak kullanılarak, 900-1200A akım aralığında 8 dakika bekleme süresi ile Elektrik Akımı Destekli Sinterleme (ECAS) yöntemiyle bronz esaslı balata imalatı gerçekleştirilmiştir. Üretilen numunelerin özellikleri; metalografik (SEM) incelemeler, faz analizi (XRD, SEM-EDS), yoğunluk, sertlik ve aşınma çalışmaları ile belirlenmiştir. Ağırlıkça %2, %4 ve %6 B2O3 ilaveli numunelerde sırasıyla %98.26, %98.97, %98.08 nispi yoğunluklar elde edilirken, sertlik değerleri 258, 402 ve 385 Hv olarak belirlenmiş ve sürtünme katsayısı yaklaşık 0.67, 0.51 ve 0.72 olup aşınma oranları ise yaklaşık 0.83, 0.46 ve 1.1 mm3/Nm olarak tespit edilmiştir.

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Cite This Article

Ergin, N., Çalışkanöztürk, B., Çipil, Y., Koçak, N., Uysal, M., Özdemir, Ö. (2024). B2O3 Effect on Tribological Properties of Bronze Based Ceramic Reinforced Brake Pads Produced by Electric Current Assisted Sintering Method. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 24 Sayı: 2, 400–407. https://doi.org/10.35414/akufemubid.1134818

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