Thermophysical Properties of Glass-Ceramic Coatings of PbO–ZnO–B$_2$O$_3$ System Doped with Al$_2$O$_3$, SiO$_2$, and BaO Oxides

Heterogeneous sol-gel systems (suspensions), synthesized by mixing sols and fillers of various dispersity (oxides, minerals, etc.), are successfully used to prepare glass-ceramic coatings. Sol composition (precursor, catalyst, solvent, dopants), filler dispersity and a homogenization mode for obtained suspensions essentially influence the properties of coatings formed. Here ways of the control of properties of heterogeneous sol-gel systems (by using various dopants, additives of organic low- and high-molecular compounds, as well as ultrasound) to reach set electro-physical and mechanical characteristics of coatings are considered in details. A number of examples of applications of glass-ceramic and hybrid coatings as well as ‘skin’ - layers are resulted.

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Durable Glass-Ceramic Coatings for Foam Glass

International Journal of Applied Glass Science ◽

10.1111/j.2041-1294.2011.00071.x ◽

2011 ◽

Vol 3 (1) ◽

pp. 69-74 ◽

Cited By ~ 3

Author(s):

Federico Smeacetto ◽

Milena Salvo ◽

Andrea Ventrella ◽

Stefano Rizzo ◽

Monica Ferraris

Keyword(s):

Glass Ceramic ◽

Foam Glass ◽

Ceramic Coatings ◽

Glass Ceramic Coatings

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Electrophoretic deposition of porous CaO–MgO–SiO2 glass–ceramic coatings with B2O3 as additive on Ti–6Al–4V alloy

Journal of Materials Science Materials in Medicine ◽

10.1007/s10856-011-4418-0 ◽

2011 ◽

Vol 22 (10) ◽

pp. 2261-2271 ◽

Cited By ~ 9

Author(s):

Wei Zhang ◽

Xianchun Chen ◽

Xiaoming Liao ◽

Zhongbing Huang ◽

Xiuli Dan ◽

...

Keyword(s):

Electrophoretic Deposition ◽

Glass Ceramic ◽

Ceramic Coatings ◽

Sio2 Glass ◽

Glass Ceramic Coatings

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Study of the biocidal properties of R2O–RO–TiO2–P2O5–R2O3–SiO2 glass ceramic coatings

Glass and Ceramics ◽

10.1007/s10717-012-9407-3 ◽

2012 ◽

Vol 69 (1-2) ◽

pp. 20-24 ◽

Cited By ~ 1

Author(s):

O. V. Savvova ◽

L. L. Bragina ◽

E. V. Babich

Keyword(s):

Glass Ceramic ◽

Ceramic Coatings ◽

Sio2 Glass ◽

Glass Ceramic Coatings ◽

Biocidal Properties

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Quantifying the Adhesion of Silicate Glass–Ceramic Coatings onto Alumina for Biomedical Applications

Materials ◽

10.3390/ma12111754 ◽

2019 ◽

Vol 12 (11) ◽

pp. 1754 ◽

Cited By ~ 1

Author(s):

Francesco Baino

Keyword(s):

Coating Thickness ◽

Glass Ceramic ◽

Bonding Strength ◽

Biomedical Applications ◽

Strain Energy Release ◽

Ceramic Coatings ◽

International Standards ◽

Bioactive Materials ◽

Glass Ceramic Coatings ◽

Joint Prostheses

Deposition of bioactive glass or ceramic coatings on the outer surface of joint prostheses is a valuable strategy to improve the osteointegration of implants and is typically produced using biocompatible but non-bioactive materials. Quantifying the coating–implant adhesion in terms of bonding strength and toughness is still a challenge to biomaterials scientists. In this work, wollastonite (CaSiO3)-containing glass–ceramic coatings were manufactured on alumina tiles by sinter-crystallization of SiO2–CaO–Na2O–Al2O3 glass powder, and it was observed that the bonding strength decreased from 34 to 10 MPa as the coating thickness increased from 50 to 300 µm. From the viewpoint of bonding strength, the coatings with thickness below 250 µm were considered suitable for biomedical applications according to current international standards. A mechanical model based on quantized fracture mechanics allowed estimating the fracture toughness of the coating on the basis of the experimental data from tensile tests. The critical strain energy release rate was also found to decrease from 1.86 to 0.10 J/m2 with the increase of coating thickness, which therefore plays a key role in determining the mechanical properties of the materials.

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