Effect of Zirconia Concentration on the Growth of Nanowires in Bioactive Glass–Ceramic Coatings

Abstract

Bioactive glass-ceramic with various zirconia concentrations was applied on stainless steel (SS) by the sol-gel method. Bioactive glass powder was prepared by the sol-gel method, and thermal properties of the prepared powders were studied by differential thermal analysis (DTA). The effects of zirconia were investigated to explore the growth of nanowires. The growth model of nanowires, in this study, is proposed in terms of the surface diffusion. The coatings showed the hardness values to be in the range of 3000-4500 MPa. The hardness values of prepared composite coatings increased with an increase in zirconia amounts.

Sol-Gel Derived Tertiary Bioactive Glass–Ceramic Nanorods Prepared via Hydrothermal Process and Their Composites with Poly(Vinylpyrrolidone-Co-Vinylsilane)

“…The increased nanoporosity and surface area of the sol-gel-derived BGs allow for their improved cellular response and bioresorbability [14]. Recently, rod-or wire-shaped biomaterial nanoparticles gained attention due to their larger surface area and ability to reinforce nanocomposites when combined with biopolymers [15][16][17]. Despite their advantages, there are only limited studies that have been conducted to prepare BG nanorods or nanowires [18].…”

Bioactive Glass Coated Zirconia for Dental Implants: a review

“…Moreover, to combine great mechanical strength and excellent bioactivity of BGs, they can be successfully used as coatings on inert substrates [82]. Reaction to the physiological fluids and the formation of chemical bonding between bones and bioglass can be occurred when bioglasses are implanted in the body [83][84][85][86][87]. A bioactive surface can be considered as important agent to avoid many simultaneous reactions, which take place between the implant and the targeted tissue at the implant surface [82].…”

Effect of Additional Zirconia on Fracture Mechanics of Bioactive Glass-ceramics Using Digital Image Correlation

“…Kasuga et al [1] confirmed the high bending strength of zirconia-toughened glass-ceramic composite with no degraded after in vivo implintation for 12 weeks, the optimum zirconia content to get high-strength and bioactivity was 30 vol.%. Rabiee and Azizian [6] used composite coating layer of bioactive glass-ceramic with various zirconia concentrations; the hardness test demonstrate that increasing zirconia content lead to rising of coating hardness. Zirconia was used to resolve the issue of ceramic brittleness and the resultant potential failed implants [7].…”