Collection of scientific works Nanosystems, nanomaterials, nanotechnologies
Year 2025 Volume 23, Issue 4
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O. V. SAVVOVA1, I. V. YANISHYN2, O. I. FESENKO1, O. L. FEDOTOVA2, O. V. BABICH1, Yu. O. SMYRNOVA1, and D. A. BULAVINA1

1O. M. Beketov National University of Urban Economy in Kharkiv, 17, Chornoglazivska Str., UA-61002 Kharkiv, Ukraine
2Kharkiv National Medical University, 4, Nauky Ave., UA-61022 Kharkiv, Ukraine

The Mechanism of Nucleation in Glass-Ceramic Materials Based on Lithium Disilicate with Increased Fracture Toughness

1041–1057 (2025)

PACS numbers: 62.20.Qp, 62.25.Mn, 68.35.bj, 68.37.Hk, 68.70.+w, 81.05.Pj, 87.85.Rs

Received 10 January, 2025

Innovative directions for the development of new types of competitive materials for dentistry are analysed to solve important social problems related to improving the quality of life of people and emergency care in crisis situations. A comparative assessment of the properties and areas of application of commercial dental materials is carried out and the prospects for the use of glass-ceramic materials based on lithium disilicate for solving problems of long-term functionality are determined. The criteria, which determine the formation of a high-strength sitallized nanostructure of the glass matrix and ensure the necessary properties of the glass-ceramic material under low-temperature synthesis conditions, are selected. Glass compositions are developed and the character of their crystallization is studied. The mechanism of nucleation and the conditions for the formation of the dendritic structure of experimental glasses during heat treatment are determined. The operational properties of the developed glass-ceramic materials are studied and the possibility of obtaining competitive materials, in accordance with DIN EN ISO 13485, with increased fracture toughness K1c = 5.0 MPa·m1/2 is established.

KEY WORDS: glass-ceramic materials, lithium disilicate, nanostructure, dendritic structure, fracture toughness, dentistry

DOI: https://doi.org/10.15407/nnn.23.04.1041

Citation:
O. V. Savvova, I. V. Yanishyn, O. I. Fesenko, O. L. Fedotova, O. V. Babich, Yu. O. Smyrnova, and D. A. Bulavina, The Mechanism of Nucleation in Glass-Ceramic Materials Based on Lithium Disilicate with Increased Fracture Toughness, Nanosistemi, Nanomateriali, Nanotehnologii, 23, No. 4: 1041–1057 (2025); https://doi.org/10.15407/nnn.23.04.1041
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