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Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2026 / Cilt: 26 Sayı: 3

Spark Plasma Sintered B₄C-Based Composites with WC and Y₂O₃ Additives: Phase Evolution, Densification and Microstructural Analysis

WC ve Y₂O₃ Katkılı Spark Plazma Sinterlenmiş B₄C Bazlı Kompozitler: Faz Gelişimi, Yoğunlaşma ve Mikro Yapı Analizi

Pelin Çağım Tokat Birgin(KÜTAHYA DUMLUPINAR ÜNİVERSİTESİ)0000-0001-9806-3381
Hediye Aydın(KUTAHYA DUMLUPINAR UNIVERSITY)0000-0003-2164-6129
Pages
751–760
Publication Date
2026-06-03
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AI Summary & Key Takeaways

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

This remarkable improvement is attributed to the reduction in grain size, the formation of secondary phases, and energy loss mechanisms resulting from fracture along grain boundaries.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:B₄C matrix composites were produced using the spark plasma sintering (SPS) method at a temperature of 1900°C and a pressure of 40 MPa.
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Key Findings & Data:In the production process, WC additives at volumes of 15%, 17.5%, and 20% and Y₂O₃ additives at volumes of 2.5% and 5% were used.
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Conclusion & Impact:This remarkable improvement is attributed to the reduction in grain size, the formation of secondary phases, and energy loss mechanisms resulting from fracture along grain boundaries.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Bor Karbür · Seramik Matris Kompozit · Spark Plazma Sinterleme

Abstract

B₄C matrix composites were produced using the spark plasma sintering (SPS) method at a temperature of 1900°C and a pressure of 40 MPa. In the production process, WC additives at volumes of 15%, 17.5%, and 20% and Y₂O₃ additives at volumes of 2.5% and 5% were used. The mechanical properties of composites produced using the SPS method have been investigated in relation to the effect of secondary phases on the structure. The sintered ceramic matrix composites exhibited a high fracture toughness of 8.1 MPa⋅ m¹/² and a Vickers hardness of 23.5 GPa. This remarkable improvement is attributed to the reduction in grain size, the formation of secondary phases, and energy loss mechanisms resulting from fracture along grain boundaries.

Özet

B₄C matrisli kompozitler, 1900°C sıcaklık ve 40 MPa basınçta kıvılcım plazma sinterleme (SPS) yöntemi kullanılarak üretilmiştir. Üretim sürecinde %15, %17,5 ve %20 hacimlerinde WC katkıları ve %2,5 ve %5 hacimlerinde Y₂O₃ katkıları kullanılmıştır. SPS yöntemi kullanılarak üretilen kompozitlerin mekanik özellikleri, ikincil fazların yapı üzerindeki etkisiyle ilişkili olarak incelenmiştir. Sinterlenmiş seramik matrisli kompozitler 8,1 MPa⋅ m¹/²'lik yüksek bir kırılma tokluğu ve 23,5 GPa'lık bir Vickers sertliği sergilemiştir. Bu kayda değer iyileşme, tane boyutundaki azalmaya, ikincil fazların oluşumuna ve tane sınırları boyunca kırılmadan kaynaklanan enerji kaybı mekanizmalarına bağlanmaktadır.

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Cite This Article

Birgin, P. Ç. T., Aydın, H. (2026). Spark Plasma Sintered B₄C-Based Composites with WC and Y₂O₃ Additives: Phase Evolution, Densification and Microstructural Analysis. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 26 Sayı: 3, 751–760. https://doi.org/10.35414/akufemubid.1880940

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