Yıl: 2020 Cilt: 12 Sayı: 1 Sayfa Aralığı: 113 - 117 Metin Dili: İngilizce DOI: https://doi.org/10.29137/umagd.572978 İndeks Tarihi: 28-04-2021

Microstructural Study and Thermal Behavior of Sodium Silicofluoride

Öz:
Sodium silicofluoride, with the chemical formula of Na2SiF6, is an inorganic synthetic material which recently found lots of applications in various industries such as ceramic, metallurgy and chemical engineering. One of the main important usages of this powder is in the production of opal glass-ceramics, glazes and frits. Despite the expansion of its applications, the properties of this material were not investigated deeply elsewhere. In this research, a commercial sodium silicofluoride powder was studiedand characterized in terms of thermal behavior and microstructure. The thermal analysis was investigated according to thedifferential thermal and thermo gravimetry curves by heating the material up to 900 °C in air. The microstructural analyses were also performed using scanning and transmission electron microscopies to study the grain size and morphology of the particles. The results showed that this commercial sodium silicofluoride material is decomposed in the temperature range of 430-600 °C in air by an accompanied endothermic reaction. The microstructural characterizations were also clarified the granular morphology of the studied SSF powder, existence of the hexagonal shaped prisms and associated pores.
Anahtar Kelime:

Sodyum Silikoflorürün Mikroyapı ve Isıl Davranışlarının İncelenmesi

Öz:
Sodyum silikoflorür, Na2SiF6'nın kimyasal formülü ile son zamanlarda seramik, metalurji ve kimya mühendisliği gibi çeşitliendüstrilerde birçok uygulama alanı bulan inorganik sentetik bir malzemedir. Bu tozun en önemli kullanımlarından bazıları opalcam-seramik, sırlar ve fritlerdir. Uygulama alanlarının gün geçtikçe artmasına karşı, literatürde sodium silikoflorür (SSF) ileilgili sınırlı sayıda kaynak mevcuttur. Bu araştırmada, ticari bir sodyum silikoflorür tozunun ısıl davranış ve mikroyapı açısındankarakterize edilmiştir. Termal analiz, hava atmosferinde 900 °C’de diferansiyel termal ve termo gravimetri eğrilerine görearaştırılmıştır. Mikroyapısal analizler, taneciklerin tane büyüklüğü ve morfolojisini incelemek için taramalı ve geçirimli elektronmikroskopları kullanılarak yapılmıştır. Sonuçlar, ticari sodyum silikoflorür malzemesinin, eşlik eden bir endotermik reaksiyonlahavada 430-600 °C sıcaklık aralığında çözündüğünü göstermiştir. Mikroyapısal karakterizasyonlarla, incelenen SSF tozunungranüler morfolojisi, altıgen şekilli prizmaların ve ilgili gözeneklerin varlığına da açıklık getirmiştir.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
  • Andreeva, V. & Fekeldjiev, G. (1986) Use of nonconventional raw materials in ceramic production. Ceramics International, 12, 229-235.
  • Arai, T. & Adachi, S. (2011) Mn-activated Na2SiF6 red and yellowish-green phosphors: A comparative study. Journal of Applied Physics, 110, 063514.
  • Ciavatta, L., Iijliano, M. & Porto, R. (1988) Fluorosilicate equilibria in acid solution, Polyhedron, 7 (18), 1773-1779.
  • Coyle, G. J., Tsang, T. & Adler, I. (1981) XPS studies of surface damages of transition metal fluorosilicates under argon ion bombardment. Surface Science, 112, 197-205.
  • Hattab, F. N. (1987) Direct determination of fluoride in selected dental materials. Dent. Mater., 3, 67-70.
  • Jeong, H. L. & Huh, Y.D. (2010) Synthesis of hexagonal prisms and hexagonal plates of Na2SiF6 microcrystals. Materials Letters, 64, 1816-1818.
  • Khan, M. S., Shahzadi, P., Alam, S., Javed, K., Shaheen, F., Naqvi, J. & Shahnaz, A. (2015) Development of heat resistant borosilicate glass doped with sodium silico fluoride compound. Journal of Chemistry and Materials Research, 4, 1, 13-18.
  • Kumar, M., Nani Babu, M., Mankhand, T.R. & Pandey, B.D. (2010) Precipitation of sodium silicofluoride (Na2SiF6) and cryolite (Na3AlF6) from HF/HCl leach liquors of alumino-silicates, Hydrometallurgy, 104, 304-307.
  • Smith, G. E. (1985) Toxicity of fluoride-containing dental preparations: A review. The Science of the Total Environment, 43, 41- 61.
  • Toure, A. O., Keinde, D., Sambe, F. M., Joseph, M. & Diop C. G. M. (2017) Use of a fluoride waste in the raw mix for clinker manufacturing. American-Eurasian Journal of Scientific Research, 12, 1, 1-6.
  • Toure, A.O., Sambe, F.M., Koita, D., C.M.G., Diop, Sock, O. (2012) Processes for working-up an aqueous fluosilicic acid solution, South African Journal of Science,108, 11/12, 1-5.
  • Vanka, M. & Vachuska, J. (1980) Thermal decomposition of sodium hexafluorosilicate. Thermochimica Acta, 36, 387-391.
  • Yeo, B. E., Cho, Y. S. & Huh, Y. D. (2016) Synthesis and photoluminescence properties of a red-emitting phosphor K2SiF6:Mn4+ for use in three-band white LED applications, Optical Materials, 51, 50-55.
  • Zhang, W., Jing, Q., Fang, Y., Chen, Z., (2017) Synthesis, structure and properties of nonlinear optical crystal Na2SiF6, Zeitschrift für anorganische und allgemeine Chemie, 10.1002/zaac.201700322.
APA ÇAKIR ARİANPOUR A, ARİANPOUR F, AALİ B (2020). Microstructural Study and Thermal Behavior of Sodium Silicofluoride. , 113 - 117. https://doi.org/10.29137/umagd.572978
Chicago ÇAKIR ARİANPOUR Aslı,ARİANPOUR Farzin,AALİ Behnam Microstructural Study and Thermal Behavior of Sodium Silicofluoride. (2020): 113 - 117. https://doi.org/10.29137/umagd.572978
MLA ÇAKIR ARİANPOUR Aslı,ARİANPOUR Farzin,AALİ Behnam Microstructural Study and Thermal Behavior of Sodium Silicofluoride. , 2020, ss.113 - 117. https://doi.org/10.29137/umagd.572978
AMA ÇAKIR ARİANPOUR A,ARİANPOUR F,AALİ B Microstructural Study and Thermal Behavior of Sodium Silicofluoride. . 2020; 113 - 117. https://doi.org/10.29137/umagd.572978
Vancouver ÇAKIR ARİANPOUR A,ARİANPOUR F,AALİ B Microstructural Study and Thermal Behavior of Sodium Silicofluoride. . 2020; 113 - 117. https://doi.org/10.29137/umagd.572978
IEEE ÇAKIR ARİANPOUR A,ARİANPOUR F,AALİ B "Microstructural Study and Thermal Behavior of Sodium Silicofluoride." , ss.113 - 117, 2020. https://doi.org/10.29137/umagd.572978
ISNAD ÇAKIR ARİANPOUR, Aslı vd. "Microstructural Study and Thermal Behavior of Sodium Silicofluoride". (2020), 113-117. https://doi.org/https://doi.org/10.29137/umagd.572978
APA ÇAKIR ARİANPOUR A, ARİANPOUR F, AALİ B (2020). Microstructural Study and Thermal Behavior of Sodium Silicofluoride. Uluslararası Mühendislik Araştırma ve Geliştirme Dergisi, 12(1), 113 - 117. https://doi.org/10.29137/umagd.572978
Chicago ÇAKIR ARİANPOUR Aslı,ARİANPOUR Farzin,AALİ Behnam Microstructural Study and Thermal Behavior of Sodium Silicofluoride. Uluslararası Mühendislik Araştırma ve Geliştirme Dergisi 12, no.1 (2020): 113 - 117. https://doi.org/10.29137/umagd.572978
MLA ÇAKIR ARİANPOUR Aslı,ARİANPOUR Farzin,AALİ Behnam Microstructural Study and Thermal Behavior of Sodium Silicofluoride. Uluslararası Mühendislik Araştırma ve Geliştirme Dergisi, vol.12, no.1, 2020, ss.113 - 117. https://doi.org/10.29137/umagd.572978
AMA ÇAKIR ARİANPOUR A,ARİANPOUR F,AALİ B Microstructural Study and Thermal Behavior of Sodium Silicofluoride. Uluslararası Mühendislik Araştırma ve Geliştirme Dergisi. 2020; 12(1): 113 - 117. https://doi.org/10.29137/umagd.572978
Vancouver ÇAKIR ARİANPOUR A,ARİANPOUR F,AALİ B Microstructural Study and Thermal Behavior of Sodium Silicofluoride. Uluslararası Mühendislik Araştırma ve Geliştirme Dergisi. 2020; 12(1): 113 - 117. https://doi.org/10.29137/umagd.572978
IEEE ÇAKIR ARİANPOUR A,ARİANPOUR F,AALİ B "Microstructural Study and Thermal Behavior of Sodium Silicofluoride." Uluslararası Mühendislik Araştırma ve Geliştirme Dergisi, 12, ss.113 - 117, 2020. https://doi.org/10.29137/umagd.572978
ISNAD ÇAKIR ARİANPOUR, Aslı vd. "Microstructural Study and Thermal Behavior of Sodium Silicofluoride". Uluslararası Mühendislik Araştırma ve Geliştirme Dergisi 12/1 (2020), 113-117. https://doi.org/https://doi.org/10.29137/umagd.572978