Error message

  • Deprecated function: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in include_once() (line 1439 of /home/science2016/public_html/includes/bootstrap.inc).
  • Deprecated function: Array and string offset access syntax with curly braces is deprecated in include_once() (line 3557 of /home/science2016/public_html/includes/bootstrap.inc).
  • Deprecated function: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in include_once() (line 1439 of /home/science2016/public_html/includes/bootstrap.inc).
  • Deprecated function: Array and string offset access syntax with curly braces is deprecated in include_once() (line 3557 of /home/science2016/public_html/includes/bootstrap.inc).

Peculiarities of Phase Formation in Sol-Gel Powders of the СaО–ZrO2–Nb2O5–SiO2 System

Iryna Lutsyuk1, Yaryna Gavryshkevych2, Yaroslav Vakhula1
Affiliation: 
1 Lviv Polytechnic National University, 12, S. Bandery St., 79013 Lviv, Ukraine 2 Danylo Halytsky Lviv National Medical University, 25b, Kutova St., 79014 Lviv, Ukraine KhTS.dept@lpnu.ua
DOI: 
https://doi.org/10.23939/chcht17.03.495
AttachmentSize
PDF icon full_text.pdf2.68 MB

Keywords:

Abstract: 
The phase composition of xerogel powders of the CaO–ZrO2–Nb2O5–SiO2 system after heat treatment at 1273 K with different Nb2O5 content was established. The temperatures of the physical and chemical processes occurring during the powders heating were determined. It was found that the complete replacement of ZrO2 by Nb2O5 resulted in the formation of niobium-containing phases with a change in the structure of the powders.
References: 

[1] Rotstein, I.; Salehrabi, R.; Forrest, J. L. Endodontic Treatment Outcome: Survey of Oral Health Care Professionals. J. Endod. 2006, 32, 399-403. https://doi.org/10.1016/j.joen.2005.10.056
https://doi.org/10.1016/j.joen.2005.10.056

[2] Baino, F.; Novajra, G.; Miguez-Pacheco, V.; Boccaccini, A. R.; Vitale-Brovarone, C. Bioactive Glasses: Special Applications Out-side the Skeletal System. J. Non Cryst. Solids 2016, 432, 15-30. https://doi.org/10.1016/j.jnoncrysol.2015.02.015
https://doi.org/10.1016/j.jnoncrysol.2015.02.015

[3] Dubok, V. A. Bioceramics - Yesterday, Today, Tomorrow. Powder Metall. Met. Ceram. 2000, 39, 381-394. https://doi.org/10.1023/A:1026617607548
https://doi.org/10.1023/A:1026617607548

[4] Yang, Q.; Lu, D. Premixed Biological Hydraulic Cement Paste Composition and Using the Same. US 2008/O299.093 A1, 04 December 2008.
https://doi.org/10.1088/1126-6708/2008/04/093

[5] El-Saady Badawy, R.; Mohamed, D.A. Evaluation of New Bioceramic Endodontic Sealers: An in vitro Study. Dent Med Probl 2022, 59, 85-92. https://doi.org/10.17219/dmp/133954
https://doi.org/10.17219/dmp/133954

[6] Chellapandian, K.; Reddy, T. V. K.; Venkatesh, V.; Annapura-ni, A. Bioceramic Root Canal Sealers: A Review. Int. J. Health Sci. 2022, 6, 5693-5706. https://doi.org/10.53730/ijhs.v6nS3.7214
https://doi.org/10.53730/ijhs.v6nS3.7214

[7] Kohli, M.R.; Karabucak, B. Bioceramic Usage in Endodontics. Bioceramics 2019. https://www.aae.org/specialty/communique/bioceramic-usage-in-endodontics

[8] Chybowski, EA; Glickman, GN; Patel, Y.; Fleury, A.; Solo-mon, E.; He, J. Clinical Outcome of Non-Surgical Root Canal Treatment Using a Single-cone Technique with Endosequence Bioceramic Sealer: A Retrospective Analysis. J Endod. 2018, 44, 941-945. https://doi.org/10.1016/j.joen.2018.02.019
https://doi.org/10.1016/j.joen.2018.02.019

[9] Candeiro, G. T.; Correia, F. C.; Duarte, M. A.; Ribeiro-Siqueira, D. C.; Gavini, G. Evaluation of Radiopacity, pH, Release of Calcium Ions, and Flow of a Bioceramic Root Canal Sealer. J Endod. 2012, 38, 842-845. https://doi.org/10.1016/j.joen.2012.02.029
https://doi.org/10.1016/j.joen.2012.02.029

[10] Hench, L. L. Genetic Design of Bioactive Glass. J. Eur. Ceram. Soc. 2009, 29, 1257-1265. https://doi.org/10.1016/j.jeurceramsoc.2008.08.002
https://doi.org/10.1016/j.jeurceramsoc.2008.08.002

[11] Bertolini, M. J.; Palma-Dibb, R. G.; Zaghete, M. A.; Gimenes, R. Evaluation of Glass Ionomer Cements Properties Obtained from Niobium Silicate Glasses Prepared by Chemical Process. J Non Cryst Solids 2005, 351, 466-471. https://doi.org/10.1016/j.jnoncrysol.2005.01.040
https://doi.org/10.1016/j.jnoncrysol.2005.01.040

[12] Fliberg, S. R.; Silberberg, Y.; Oliver, M. K.; Andrejco, M. J.; Saifi, M. A.; Smith P. W. Ultrafast All‐Optical Switching in a Dual‐Core Fiber Nonlinear Coupler. Appl. Phys. Lett. 1987, 51, 1135-1137. https://doi.org/10.1063/1.98762
https://doi.org/10.1063/1.98762

[13] Cardinal, T.; Fargin, E.; Le Flem, G. Non Linear Optical Prop-erties of Some Niobium (V) Oxide Glasses. Eur. J. Solids State Inorg. Chem. 1996, 33, 597-605.
https://doi.org/10.1002/chin.199644010

[14] Samuneve, B.; Kralchev, St.; Dimitrof, V. Structure and Opti-cal Properties of Niobium Silicate Glasses. J. Non Cryst. Solids 1991, 129, 54-63. https://doi.org/10.1016/0022-3093(91)90080-P
https://doi.org/10.1016/0022-3093(91)90080-P

[15] Graca, M. P. F.; Valente, M. A.; Ferreira da Silva, M. G. Electrical Properties of Lithium Niobium Silicate Glasses. J. Non Cryst. Solids 2003, 325, 267-274. https://doi.org/10.1016/S0022-3093(03)00314-4
https://doi.org/10.1016/S0022-3093(03)00314-4

[16] Lutsyuk, І.; Vakhula, Ya.; Tupis, І.; Iliuchok, І. Catalytic Action of Nitric Acid on The Hydrolysis of ETS-40 Ethyl Silicate. Chem. Сhem. Technol. 2021, 15, 475-478. https://doi.org/10.23939/chcht15.04.475
https://doi.org/10.23939/chcht15.04.475