Journals / Recep Tayyip Erdoğan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2025 / Cilt: 6 Sayı: 3

Sintering-Driven Evolution of Phase, Microstructure, and Microstrain in Perlite-Containing Ceramics

Perlit Katkılı Seramiklerde Sinterleme Tabanlı Faz, Mikroyapı ve Mikrogerinim Evrimi

Büşra Tansu Ceylan(Mudanya Üniversitesi, Meslek Yüksek Okulu, Otomotiv Teknolojisi Programı)0000-0001-8395-7673
Yunus Emre Benkli(Atatürk Üniversitesi, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümü)0000-0001-7318-2552
Pages
861–877
Publication Date
2025-12-31
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AI Summary & Key Takeaways

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

Overall, the findings suggest that the optimum microstructural features (10–20% perlite at 1150 °C) were achieved through low microstrain, high crystallinity, and balanced crystallite size, while excessive perlite additions under advanced sintering conditions disrupted the morphology.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, ceramic samples with perlite additions in the range of 0–50% were sintered at 1050, 1150, and 1250 °C to investigate their effects on phase stability, microstructural evolution, and microstrain.
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Key Findings & Data:The XRD patterns revealed that the quartz-dominant phase environment was preserved, and the broad amorphous hump at 2θ ≈ 8–16° persisted in all groups.
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Conclusion & Impact:Overall, the findings suggest that the optimum microstructural features (10–20% perlite at 1150 °C) were achieved through low microstrain, high crystallinity, and balanced crystallite size, while excessive perlite additions under advanced sintering conditions disrupted the morphology.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Kristalinlik indeksi · Kristalit boyutu · Mikrogerinim

Abstract

In this study, ceramic samples with perlite additions in the range of 0–50% were sintered at 1050, 1150, and 1250 °C to investigate their effects on phase stability, microstructural evolution, and microstrain. The XRD patterns revealed that the quartz-dominant phase environment was preserved, and the broad amorphous hump at 2θ ≈ 8–16° persisted in all groups. Scherrer analysis indicated that crystallite size reached its maximum (11–12 nm) in samples containing 10–20% perlite at 1150 °C, whereas it decreased to as low as 2–3 nm at ≥40% perlite additions at 1250 °C. The Williamson–Hall method demonstrated a pronounced increase in microstrain at 1250 °C, peaking particularly around 40% perlite. SEM-based dark-field (%) analysis showed more compact and homogeneous structures at medium additions (20–40%), while higher additions tended to cause structural heterogeneity. Furthermore, microhardness measurements supported the observed structural trends. Overall, the findings suggest that the optimum microstructural features (10–20% perlite at 1150 °C) were achieved through low microstrain, high crystallinity, and balanced crystallite size, while excessive perlite additions under advanced sintering conditions disrupted the morphology. These results contribute to defining the optimum perlite ratio in ceramic body design.

Özet

Bu çalışmada, %0–50 aralığında perlit katkılı seramik numuneler 1050, 1150 ve 1250 °C’de sinterlenerek faz kararlılığı, mikroyapısal evrim ve mikrogerinim üzerindeki etkileri incelenmiştir. XRD desenleri, kuvars baskın faz ortamının korunduğunu ve 2θ ≈ 8–16° aralığındaki geniş amorf kubbenin tüm gruplarda sürdüğünü göstermiştir. Scherrer analizi, 1150 °C’de %10–20 perlit katkılı numunelerde kristalit boyutunun 11–12 nm ile maksimuma ulaştığını; 1250 °C’de ≥%40 perlit katkılarında ise 2–3 nm’ye kadar gerilediğini ortaya koymuştur. Williamson–Hall yöntemi, 1250 °C’de mikrogerinimin belirgin şekilde arttığını ve özellikle %40 perlit civarında maksimuma ulaştığını göstermiştir. SEM tabanlı koyu-alan (%) analizi, orta katkılarda (20–40%) daha kompakt ve homojen yapılar, yüksek katkılarda ise heterojenleşme eğilimi olduğunu ortaya koymuştur. Ek olarak, mikrosertlik ölçümleri de yapısal eğilimleri desteklemiştir. Bulgular birlikte değerlendirildiğinde, optimum mikroyapısal özelliklerin (%10–20 perlit, 1150 °C) düşük mikrogerinim, yüksek kristalinlik ve dengeli kristalit boyutu ile elde edildiği; yüksek perlit katkılarının ise ileri sinterleme altında morfolojiyi bozduğu sonucuna varılmıştır. Bu sonuçlar, seramik gövde tasarımında optimum perlit oranının belirlenmesine katkı sağlamaktadır.

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Cite This Article

Ceylan, B. T., Benkli, Y. E. (2025). Sintering-Driven Evolution of Phase, Microstructure, and Microstrain in Perlite-Containing Ceramics. Recep Tayyip Erdoğan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 6 Sayı: 3, 861–877. https://doi.org/10.53501/rteufemud.1778513

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