Effect of complex nucleating agents on crystallization behavior of CaO–Al2O3–SiO2–ZnO–Na2O–K2O glass-ceramics

IF 2.1 3区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

International Journal of Applied Glass Science Pub Date : 2024-03-23 DOI:10.1111/ijag.16662

Dongchan Kim, Kangduk Kim

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Abstract

Single (TiO₂) and complex (TiO₂ and ZrO₂) nucleating agents were added in CaO–Al₂O₃–SiO₂–ZnO–Na₂O–K₂O-based multicomponent glass to investigate its crystallization behavior and physical properties according to the types and amounts of nucleating agents. Nonisothermal analysis revealed crystallization behavior with an activation energy (E) of 165.176–518.985 kJ/mol and Avrami constant (n) of .73–2.12 with the complex nucleating agent. X-ray diffraction was used to observe the titanite and zircon crystalline phases in glass when using complex nucleating agents, and the crystallinity was found to be 43%–55%. Scanning electron microscopy and energy-dispersive x-ray spectroscopy were used to observe the plate-shaped titanite and column-shaped zircon crystalline phase in the glass matrix, and the glossiness was found to be decreased owing to the crystallization of the glass. The glass-ceramic showed a higher hardness and fracture toughness value of 6.45–6.7 GPa and 1.54–3.35 MPa∙m^1/2 when using the complex nucleating agent rather than when using the single nucleating agent.

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复合成核剂对 CaO-Al2O3-SiO2-ZnO-Na2O-K2O 玻璃陶瓷结晶行为的影响

在基于 CaO-Al2O3-SiO2-ZnO-Na2O-K2O 的多组分玻璃中加入单（TiO2）和复合（TiO2 和 ZrO2）成核剂，根据成核剂的类型和数量研究其结晶行为和物理性质。非等温分析表明，复合成核剂的结晶行为活化能（E）为 165.176-518.985 kJ/mol，阿夫拉米常数（n）为 0.73-2.12。使用 X 射线衍射法观察了使用复合成核剂时玻璃中的榍石和锆石结晶相，发现结晶度为 43%-55%。利用扫描电子显微镜和能量色散 X 射线光谱观察了玻璃基质中的板状钛铁矿和柱状锆石结晶相，发现由于玻璃结晶，光泽度降低。与使用单一成核剂相比，使用复合成核剂的玻璃陶瓷显示出更高的硬度和断裂韧性值，分别为 6.45-6.7 GPa 和 1.54-3.35 MPa∙m1/2。

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来源期刊

International Journal of Applied Glass Science MATERIALS SCIENCE, CERAMICS-

CiteScore

4.50

自引率

9.50%

发文量

审稿时长

>12 weeks

期刊介绍： The International Journal of Applied Glass Science (IJAGS) endeavors to be an indispensable source of information dealing with the application of glass science and engineering across the entire materials spectrum. Through the solicitation, editing, and publishing of cutting-edge peer-reviewed papers, IJAGS will be a highly respected and enduring chronicle of major advances in applied glass science throughout this century. It will be of critical value to the work of scientists, engineers, educators, students, and organizations involved in the research, manufacture and utilization of the material glass. Guided by an International Advisory Board, IJAGS will focus on topical issue themes that broadly encompass the advanced description, application, modeling, manufacture, and experimental investigation of glass.