TY  - JOUR
T1  - Sintering-Driven Evolution of Phase, Microstructure, and Microstrain in Perlite-Containing Ceramics
TT  - Perlit Katkılı Seramiklerde Sinterleme Tabanlı Faz, Mikroyapı ve Mikrogerinim Evrimi
AU  - Benkli, Yunus Emre
AU  - Ceylan, Büşra Tansu
PY  - 2025
DA  - December
Y2  - 2025
DO  - 10.53501/rteufemud.1778513
JF  - Recep Tayyip Erdogan University Journal of Science and Engineering
JO  - RTEÜ-FEMÜD
PB  - Recep Tayyip Erdoğan University
WT  - DergiPark
SN  - 2687-2315
SP  - 861
EP  - 877
VL  - 6
IS  - 3
LA  - en
AB  - 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.
KW  - Crystallinity index
KW  - Crystallite size
KW  - Microstrain
KW  - Perlite-containing ceramics
KW  - Sintering
N2  - 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.
CR  - Abbasi, N., Hamlet, S., Love, R. M., & Nguyen, N.-T. (2020). Porous scaffolds for bone regeneration. Journal of Science: Advanced Materials and Devices, 5(1), 1–9. https://doi.org/10.1016/j.jsamd.2020.01.007
CR  - Allen, W.B., Kenneth, O., Thomas, R., Ignatius, Y.C. (2009). On the estimation of average crystallite size of zeolites from the Scherrer equation: A critical evaluation of its application to zeolites with one-dimensional pore systems. Microporous and Mesoporous Materials, 117(1–2), 75-90. https://doi.org/10.1016/j.micromeso.2008.06.010
CR  - Barsoum, M., Barsoum, M.W. (2002). Fundamentals of Ceramics (1st ed.). CRC Press, 9780429194924, Boca Raton, 624. https://doi.org/10.1201/b21299
CR  - Basar, F.S. (2023). Investigation of the Contribution of Perlite in Ceramic Mud and its Applications. Thesis (M.Sc.), Sakarya University, Institute of Social Sciences, Türkiye.
CR  - Benkli, Y.E., Koca, K. (2024). Suitability and characterization of pumice, bauxite, and ferrochrome slag as alternative raw materials in vitrified ceramic industry. Physicochemical Problems of Mineral Processing, 60(2), 187967. https://doi.org/10.37190/ppmp/187967
CR  - Binici, H. (2007). Effect of crushed ceramic and basaltic pumice as fine aggregates on concrete mortars properties. Construction and Building Materials, 21(6), 1191-1197. https://doi.org/10.1016/j.conbuildmat.2006.06.002
CR  - Bozkurt, N. (2013). The effect of high temperature on concrete containing perlite powder. SDU International Technologic Science, 5(1), 87-93.
CR  - Carty, W., Senapati, U. (2005). Porcelain-raw materials, processing, phase evolution, and mechanical behavior. Journal of the American Ceramic Society. 81(1), 3-20. https://doi.org/10.1111/j.1151-2916.1998.tb02290.x.
CR  - Ceylan, B.T. (2019). Investigation of Pumice and Perlite Extracted in Erzurum Region for the Usability in Ceramics Industry. Thesis (M.Sc.), Atatürk University, Institute of Science and Technology, Türkiye.
CR  - Chen, A., Li, L., Ren, W., Wang, C., & Wang, Q. (2023). Enhancing thermal insulation and mechanical strength of porous ceramic through size-graded MA hollow spheres. Ceramics International, 49(20), 33247–33254. https://doi.org/10.1016/j.ceramint.2023.08.033
CR  - Civan, L. (2011). Uses of Pumice as a Glaze Composition and Investigations. Thesis (M.Sc.), Anadolu University, Institute of Science and Technology, Türkiye.
CR  - Durgut, E. (2025). Evaluation of the use of microwave energy on green floor/wall tile drying process. Drying Technology, 43(5), 937–948. https://doi.org/10.1080/07373937.2025.2474156
CR  - Durgut, E., Çavdar, Y.E., Çınar, M., Yavuz, O., Özdemir, O. (2025). Fine-size separation of halloysite, kaolinite, and quartz minerals as binary systems using dispersion and sedimentation methods. Physicochemical Problems of Mineral Processing, 61(3), 203-225. https://doi.org/10.37190/ppmp/203225
CR  - Elmastas, N. (2012). A mine becoming increasingly important for economy of Turkey: pumice. The Journal of International Social Research, 5(23), 197–206.
CR  - Fatimah, S., Ragadhita, R., Husaeni, D.F., Nandiyanto, A.B.D. (2022). How to calculate crystallite size from X-Ray Diffraction (XRD) using Scherrer Method. ASEAN Journal of Science and Engineering, 2(1), 65-76. https://doi.org/10.17509/ajse.v2i1.37647
CR  - Gencel, O. (2015). Characteristics of fired clay bricks with pumice additive. Energy and Buildings, 102, 217–224. https://doi.org/10.1016/j.enbuild.2015.05.031
CR  - Gesing, T.M., Robben, L. (2024). Determination of the average crystallite size and the crystallite size distribution: the envelope function approach EnvACS. Journal of Applied Crystallography, 57(5), 1466-1476. https://doi.org/10.1107/S1600576724007362
CR  - Hossain, K.M.A.  (2004). Properties of volcanic pumice based cement and lightweight concrete. Cement and Concrete Research, 34(2), 283–291. https://doi.org/10.1016/j.cemconres.2003.08.004
CR  - Idrissi, D.E.M., Elidrissi, Z.C., Achiou, B., Ouammou, M., Younssi, S.A. (2023). Fabrication of low-cost kaolinite/perlite membrane for microfiltration of dairy and textile wastewaters. Journal of Environmental Chemical Engineering, 11(2), 109281. https://doi.org/10.1016/j.jece.2023.109281
CR  - Ismail, A.I.M., Souaya, E.R., Fathy, M., Abd El-Hakeem A. (2018). Production of lightweight concretes from pumice/bentonite mix. Geotechnical and Geological Engineering, 36, 581-588. https://doi.org/10.1007/s10706-017-0348-z
CR  - Kai, H., Nuofu, C., Congjie, W., Lishuai, W., Jikun, C. (2018). Method for determining crystal grain size by X-ray diffraction. Crystal Research-Technology, 53(2), 1700157. https://doi.org/10.1002/crat.201700157
CR  - Kayacı, K. (2020). The use of perlite as flux in the production of porcelain stoneware tiles. Boletín de la Sociedad Española de Cerámica y Vidrio, 60(5), 283-290. https://doi.org/10.1016/j.bsecv.2020.03.003
CR  - Kawsar, Md., Sahadat, H.Md., Newaz, M.B., Samina, A. (2024). Synthesis of nano-crystallite hydroxyapatites in different media and a comparative study for estimation of crystallite size using Scherrer method, Halder-Wagner method size-strain plot, and Williamson-Hall model. Heliyon, 10(3), e25347. https://doi.org/10.1016/j.heliyon.2024.e25347
CR  - Kingery, W.D., Bowen, H.K., Uhlmann, D.R. (1976). Introduction to Ceramics (2nd edition). Wiley, 978-0-471-47860-7, 1056.
CR  - Koca, K. (2019). Investigation of Vitrified Ceramic Production Supplies from Combinations of Pumice and Industrial Wastes. Thesis (M.Sc.), Atatürk University, Institute of Science and Technology, Türkiye.
CR  - Koca, K., Benkli, Y.E. (2025). Microstructural and elemental characterization of pumice–bauxite–clay ceramics: effects of sintering temperature and Scherrer-based analysis. Journal of the Australian Ceramic Society. https://doi.org/10.1007/s41779-025-01242-8
CR  - Kuzugudenli, O.E. (2004). Use of pumice stone as a ceramic raw material. Key Engineering Materials, 264–268, 1427–1430. https://doi.org/10.4028/www.scientific.net/kem.264-268.1427
CR  - Kuzugudenli, O.E., Zengin, G. (2004). Production of low-density ceramics using pumice stone. Key Engineering Materials, 264–268, 2527–2530. https://doi.org/10.4028/www.scientific.net/kem.264-268.2527
CR  - Liu, K., Shi, Y., Li, C., Hao, L., Liu, J., Wei, Q. (2014). Indirect selective laser sintering of epoxy resin-Al2O3 ceramic powders combined with cold isostatic pressing. Ceramics International, 40(5), 7099–7106. https://doi.org/10.1016/j.ceramint.2013.12.043
CR  - Liu, K., Sun, H., Shi, Y., Liu, J., Zhang, S., Huang, S., Wang, M. (2016). Research on selective laser sintering of Kaolin–epoxy resin ceramic powders combined with cold isostatic pressing and sintering. Ceramics International, 42(9), 10711–10718. https://doi.org/10.1016/j.ceramint.2016.03.190
CR  - Lu, T. J., & Fleck, N. A. (1998). The thermal shock resistance of solids. Acta Materialia, 46(13), 4755–4768. https://doi.org/10.1016/S1359-6454(98)00127-X
CR  - Lukianova, O. (2015). Mechanical and elastic properties of new silicon nitride ceramics produced by cold isostatic pressing and free sintering. Ceramics International, 41(10A), 13716–13720. https://doi.org/10.1016/j.ceramint.2015.08.026
CR  - Mercan, E. (2021). Production of Aerogel-Modified Expanded Perlite Aggregate and Clay (AEP/C) Board and Investigation of Physical and Mechanical Properties. Thesis (M.Sc.), Ihsan Doğramacı Bilkent University, Institute of Economics and Social Sciences, Türkiye.
CR  - Monshi, A., Foroughi, M.R., Monshi, M.R. (2012). Modified Scherrer equation to estimate more accurately nano-crystallite size using XRD. World Journal of Nano Science and Engineering, 2(3), 154-160. https://doi.org/10.4236/wjnse.2012.23020
CR  - Nusrat, J.T., Sahadat, H.Md., Newaz, M.B., Samina, A. (2024). Green synthesis of Ag2O - facile synthesis of ZnO and characterization using FTIR, bandgap energy - XRD (Scherrer equation, Williamson-Hall, size-train plot, Monshi-Scherrer model). Results in Chemistry, 7, 101313. https://doi.org/10.1016/j.rechem.2024.101313
CR  - Oztürk, B.Z., Can, A. (2023). Sürdürülebilir endüstriyel özellikleri taşıyan seramik sağlık gereci sırları üretiminde mikronize pomzanın kullanımı. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, 38(3), 1967-1978. https://doi.org/10.17341/gazimmfd.1121723
CR  - Poyraz, H.B., Erginel, N., Ay, N. (2006). The use of pumice (pumicite) in transparent roof tile glaze composition. Journal of the European Ceramic Society, 26(4-5), 741–746. https://doi.org/10.1016/j.jeurceramsoc.2005.06.032
Rahaman, M.N. (2003). Ceramic Processing and Sintering (2nd Edition), CRC Press, 9781315274126, Boca Raton, 875. https://doi.org/10.1201/9781315274126
CR  - Reka, A., Pavlovski, B., Lisichkov, K., Jashari, A., Boev, B., Boev, I., Lazarova, M., Eskizeybek, V., Oral, A., Jovanovski, G., Makreski, P. (2019). Chemical, mineralogical and structural features of native and expanded perlite from Macedonia. Geologia Croatica, 72(3), 215–221. https://doi.org/10.4154/gc.2019.18
CR  - Rzepa, K., Wons, W., Reben, M. (2016). Building ceramics with improved thermal insulation parameters. E3S Web of Conferences, 10, 00082. https://doi.org/10.1051/e3sconf/20161000082
CR  - Tarhan, M., Tarhan, B. (2018). The Effect of Perlite Use on Ceramic Wall Tile Technical Properties. International Journal of Engineering Research and Development, 10(1), 94–100. https://doi.org/10.29137/umagd.364552
CR  - Tarhan, B., Tarhan, M. (2022). Utilization of perlite as an alternative raw material in the production of ceramic sanitaryware. Journal of Thermal Analysis and Calorimetry, 147, 3509–3518. https://doi.org/10.1007/s10973-021-10784-5
CR  - Wang, Q., Sui, J., Li, L., Tuo, Y., Zhang, W., Zhong, G., Zhou, H., & Feng, X. (2024). Recent advances in regulating ceramic monolithic catalyst structure for preferential oxidation of CO in H₂. Molecules, 29(15), 3481. https://doi.org/10.3390/molecules29153481
CR  - Zhang, S.S. (2006). The effect of the charging protocol on the cycle life of a Li-ion battery. Journal of Power Sources, 161(2), 1385–1391. https://doi.org/10.1016/j.jpowsour.2006.06.040
UR  - https://doi.org/10.53501/rteufemud.1778513
L1  - https://dergipark.org.tr/en/download/article-file/5216070
ER  -