T.M. Gross, D.E. Baker, L. Cai, B.M. Abel, I. Dutta, B.J. Rice
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引用次数: 0
摘要
由连续的富硅相和不连续的富磷液滴相组成的不相溶玻璃体系构成了新型磁铁矿玻璃陶瓷的玻璃框架。从熔融状态冷却后,材料相分离成液滴-基质结构,磁铁矿自发沉淀在富磷液滴相中。示例磁铁矿玻璃陶瓷的磁滞曲线显示,在最大外加磁场为 30 kOe 时,饱和磁化率为 ∼20 emu/g,磁剩磁为 2.6 emu/g。这种新型材料空间为生产磁铁矿玻璃陶瓷提供了一种简单而经济的方法,具有适合各种生物医学应用的潜力。
Formation of magnetite within the droplet phase of immiscible glass
An immiscible glass system consisting of a continuous silica-rich phase and a discontinuous droplet phase enriched in phosphorus form the glassy framework for a novel magnetite glass-ceramic. Upon cooling from the molten state, the material phase separates into the droplet-in-matrix structure and magnetite precipitates spontaneously within the phosphorus-enriched droplet phase. Magnetic hysteresis curves of an exemplary magnetite glass-ceramic show a saturation magnetization of ∼20 emu/g and magnetic remanence of 2.6 emu/g for a maximum externally applied field of 30 kOe. This novel material space provides a simple and economical means to produce magnetite glass-ceramics with potential suitability for a variety of biomedical applications.