Evolution of point and structural defects in silica glass treated with fine annealing
Shcherbakov I. P.1, Eronko S. B.2, Kireenko M. F.1, Tikhonova L. V.1, Chmel A. E.1
1Ioffe Institute, St. Petersburg, Russia
2Vavilov State Optical Institute, St. Petersburg, Russia
Email: chmel@mail.ioffe.ru
The silica glass with a high content of OH groups was synthesized by the high-temperature hydrolysis of SiCl4 in a flame of oxyhydrogen torch and subjected to fine annealing. A combination of the photoluminescence and IR reflection spectroscopy was applied to assess the evolution of the ensemble of structural defects in the bulk and surface layer over the course of annealing carried out at 480oC. The marked decrease of the defect concentration was observed in the bulk at all time expositions in the range 2 to 72 hours. However, in a thin surface layer, the decrease of the concentration of silanol groups Si-OH formed in the process of synthesis was detected. Decay of these groups results in the silicate network consolidation that led to the forming of the superficial layer characterized by an elevated microhardness. Keywords: silica glass, fine annealing, photoluminescence, IR transmission. DOI: 10.61011/PSS.2023.08.56579.85
- K.H. Jack, J.A. Winterburn. Patent US 322876. (1962)
- H.E. Hagy. Appl. Opt. 7, 69 (1968)
- W. Gang, L.Y. Bin, L.L. Zheng, Zh. Hui, X. Lei, Q.F. Min, M. Ping, Y.D. Yao Proc. SPIE 10154, 1015410 (2016)
- V. Pezold. Optical Glass: In: Advances in Glass Science and Technology. Intech Open Book Series. Ch. 5. (2018)
- M.H.S. Abadi, A. Delbari, Z. Fakoor, J. Baedi. J. Ceram. Sci. Tech. 6, 41 (2015)
- R. Salh. J. At. Mol. Opt. Phys. ID 326368 (2011)
- F. Flores, M. Aceves, C. Domi nguez, C. Falcony. Rev. Superficies y Vaci o. 18, 7 (2005)
- J.C. Cheang-Wong, A. Oliver, J. Roiz, J.C. Hernandez, L. Rodri guez-Fernandez, J.G. Morales, A. Crespo-Sosa. Nucl. Instrum. Meth. Phys. Res. 175-177, 494 (2001)
- M. Zhu, Y. Han. J. Appl Phys. 83, 5386 (1998)
- F. Adam, J.-H. Chua. J. Colloid Interface Sci. 280, 55 (2004)
- S. Pontona, F. Dhainaut, H. Vergnes, D. Samelor, D. Sadowski, V. Rouessac, H. Lecoq, T. Sauvage, B. Caussat, C. Vahlas. J. Non-Cryst. Solids 515, 34 (2019)
Подсчитывается количество просмотров абстрактов ("html" на диаграммах) и полных версий статей ("pdf"). Просмотры с одинаковых IP-адресов засчитываются, если происходят с интервалом не менее 2-х часов.
Дата начала обработки статистических данных - 27 января 2016 г.