YARI SAYDAM ALÜMİNA SERAMİKLERİN ŞERİT DÖKÜM YÖNTEMİ İLE ÜRETİMİ

Year 2023, Volume: 19 Issue: 1, 3 - 17, 31.05.2023

Yasemin Tabak , Şeyda Polat , Ayşen Kılıç , Bayise Kavaklı Vatansever

https://doi.org/10.56850/jnse.1140502

Abstract

Alümina tozları elektronik, metalurji, optoelektronik ve ince seramik kompozitler gibi birçok farklı endüstride kullanılmaktadır. Bu çalışmada, alüminanın su bazlı olmayan şerit dökümü, sürekli olmayan tek bıçaklı bir şerit döküm makinesinde gerçekleştirilmiştir. Dağıtıcılar, bağlayıcılar ve plastikleştiriciler gibi katkı maddeleri içeren bir çözücü içindeki alümina tozundan oluşan bir süspansiyon, sabit bir yüzey üzerine dökülmüştür. Ham şeritler daha sonra kurutulmuş ve son olarak istenen nihai şekli elde etmek için sinterlenmiştir. Alümina ham şeritlerin mikro yapısını optimize etmek ve yoğunluğunu artırmak için hidrolik presleme yöntemi ile preslenmiştir. Katmanlı alümina seramikler, sinterleme sıcaklığının mikroyapı üzerindeki etkisini gözlemlemek için 5 farklı sıcaklıkta (1450°C, 1500°C, 1550°C, 1600°C ve 1650°C) 5 saat süreyle basınçsız sinterleme yöntemiyle üretilmiştir. Sonuçlar, kullanılan süspansiyon bileşimi ile yarı saydam alümina elde etmek için sinterleme koşullarını ortaya çıkarmıştır. Yarı saydam alümina seramikler yarı iletken aygıtlarda, devre altlıklarında, ısı ve korozyona dayanıklı malzeme olarak reaksiyon tüpleri ve potalarda, medikal uygulamalarda kullanım alanı bulmaktadır.

Keywords

Şerit Döküm, Alümina, Sinterleme, Tabakalı Seramikler, Mikroyapı.

PRODUCTION OF TRANSLUCENT ALUMINA CERAMICS BY TAPE CASTING

Abstract

Alumina powders are utilized in many industries like electronics, metallurgy optoelectronics, and fine ceramic composites. In this study, non-aqueous-based tape casting of alumina was carried out in a non-continuous single-blade tape casting machine. A slurry of alumina powder in a solvent was cast on a stationary surface with additives like dispersants, binders, and plasticizers. After the green tapes were dried, they were sintered to obtain the final desired shape. The hydraulic pressing method was used to increase the density of the alumina tapes. Layered alumina ceramics were produced at 5 different temperatures by pressureless sintering method (1450°C, 1500°C, 1550°C, 1600°C and 1650°C) for 5 h to observe the effect of sintering temperature. Results revealed the sintering conditions for obtaining translucent alumina, with the utilized slurry composition. Translucent alumina ceramics have gained importance as parts of semiconductor devices, substrates for electric parts, as heat/corrosion materials in reaction tubes and crucibles, and are used in medical equipment.

Keywords

tape casting, alumina, layered ceramics, microstructure, sintering

References

• Ba, X., Li, J., Pan, Y., Zeng, Y., Kou, H., Liu, W., Liu, J., Wu, L., & Guo, J. (2013). "Comparison of aqueous- and non-aqueous based tape casting for preparing YAG transparent ceramics". Journal of Alloys and Compounds, Vol. 577, pp. 228-231. doi:10.1016/j.jallcom.2013.04.209.
• Feng, Z., Qi, J., & Lu, T. (2020). "Highly-transparent AlON ceramic fabricated by tape-casting and pressureless sintering method". Journal of European Ceramic Society, Vol. 40, Issue 4, pp. 1168-1173. doi:10.1016/j.jeurceramsoc.2019.11.065.
• Figiel, P., Rozmus, M., & Smuk, B. (2011). "Properties of alumina ceramics obtained by conventional and non-conventional methods for sintering ceramics". Journal of Achievements in Materials and Manufacturing Engineering. Vol. 48, Issue 1, pp. 29-34.
• Fujiwara, S., Tamura, Y., Maki, H., Azuma, N., & Takeuchi, Y. (2007). "Development of new high-purity alumina". Sumitomo Kagaku. Report No. 3.
• Hou, Q., Luo, X., Xie, Z., An, D., Xiao, Z., & Ma, B. (2019). "Development of the environmental friendly non-aqueous tape casting process for high-quality Si3N4 ceramic substrates". IOP Conference Series: Materials Science and Engineering. Volume 678, 012042, pp. 1-9. doi:10.1088/1757-899X/678/1/012042.
• Jurkow, D., Malecha, K., Stiernstedt, J., & Golonka, L. (2011). "Influence of tapes’ properties on the laser cutting process". Journal of the European Ceramic Society. Volume 31, Issue 9, pp. 1589-1595. doi: 10.1016/j.jeurceramsoc.2011.02.034.
• Liu, Z., Wang, Y., & Li, Y. (2012). "Combinatorial study of ceramic tape-casting slurries". ACS Combinatorial Science. Volume 14, Issue 3, pp. 205-210. doi: 10.1021/co200148q.
• Manotham, S., Channasanon, S., Nanthananon, P., Tanodekaew, S., & Tesavibul, P. (2021). "Photosensitive binder jetting technique for the fabrication of alumina ceramic". Journal of Manufacturing Processes. Volume 62, pp. 313-322. doi:10.1016/j.jmapro.2020.12.011.
• Miao, X., & Sun, D. (2010). "Graded/gradient porous biomaterials". Materials. Volume 3, Issue 1, pp. 26-47, 2010.
• Mistler, R.E. (1995). "The principles of tape casting and tape casting applications". Ceramic Processing. R. A. Terpstra (Ed.), Chapman & Hall, London, pp. 147-173.
• Mortara, L. (2005). Analysis and development of an aqueous tape casting ceramic process (Ph.D. Thesis). School of Industrial and Manufacturing Science, Cranfield University, United Kingdom.
• Naebe, M., & Shirvanimoghaddam, K. (2016). "Functionally graded materials: A review of fabrication and properties". Applied Materials Today, Volume 5, pp. 223-245. doi:10.1016/j.apmt.2016.10.001.
• Pabst, W., & Hříbalová, S. (2021). "Light scattering models for describing the transmittance of transparent and translucent alumina and zirconia ceramics". Journal of European Ceramic Society. Volume 41, pp. 2058-2075. doi:10.1016/j.jeurceramsoc.2020.10.025.
• Roosen, A. (2006). "3-D structures via tape casting and lamination". Advances in Science and Technology, Volume 45, pp. 397-406, 2006.
• Verma, V., & Kumar, B.V.M. (2017). "Processing of alumina-based composites via conventional sintering and their characterization". Materials and Manufacturing Processes. Volume 32, 1, 21-26. doi:10.1080/10426914.2016.1198023.
• Vozdecky, P., Roosen, A., Knieke, C., & Peukert, W. (2010). "Direct tape casting of nanosized Al2O3 slurries derived from autogenous nanomilling". Journal of the American Ceramic Society. Volume 93, Issue 5, pp. 1313–1319. doi:10.1111/j.1551-2916.2009.03597.x.
• Vuksic, M., Zmak, I., Curkovic, L., & Kocjan, A. (2021a). "Spark plasma sintering of dense alumina ceramics from industrial waste scraps". Open Ceramics. Volume 5, 100076, pp. 1-7. doi:10.1016/j.oceram.2021.100076.
• Vuksic, M., Zmak, I., Curkovic, L., Coric, D., Jenus, P., & Kocjan, A. (2021b). "Evaluating recycling potential of waste alumina powder for ceramics production using response surface methodology". Journal of Materials Research and Technology. Volume 11, pp. 866-874. doi: 10.1016/j.jmrt.2021.01.064.
• Yu, M., Zhang, J., Li, X., Liang H., Zhong, H., Li, Y., Duan, Y., Jiang D. L., Liu, X., & Huang, Z. (2015). "Optimization of the tape casting process for development of high-performance alumina ceramics". Ceramics International. Volume 41, Issue 10, pp. 14845-14853. doi:10.1016/j.ceramint.2015.08.010.
• Wei, G. C., Hecker, A., & Goodman, D. A. (2001). "Translucent polycrystalline alumina with improved resistance to sodium attack". Journal of the American Ceramic Society. Volume 84, Issue 12, pp. 2853-2862. doi:10.1111/j.1151-2916.2001.tb01105.x.
• Willems, H. X. (1992). Preparation and properties of translucent gamma-aluminium oxynitride (Ph.D. Dissertation). Technische Universiteit Eindhoven. doi:10.6100/IR382898.
• Zhao, H., Tang, F., Xie, Y., Wen, Z., Tian, K., Nie, X., Cao, Y., & Tang, D. (2020). "Fabrication and rheological behavior of tape-casting slurry for ultra-thin multilayer transparent ceramics". International Journal of Applied Ceramic Technology. Volume 17, pp. 1255-1263. doi:10.1111/ijac.13421.
• Zhou, C., Jiang, B., Fan, J., Mao, X., Pan, L., Jiang, Y., Zhang, L., & Fang, Y., (2016). "Translucent Al2O3 ceramics produced by an aqueous tape casting method". Ceramics International. Volume 42, Issue 1, pp. 1648-1652. doi:10.1016/j.ceramint.2015.09.117.