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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Advanced applications of amorphous alumina: From nano to bulk
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Advanced applications of amorphous alumina: From nano to bulk

机译：非晶氧化铝的高级应用：从Nano到散装

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摘要

In modern technologies, the researchers are keen on top-down approaches to tailor the materials from bulk into their nanometer forms. For the amorphous alumina, this is the other way around. The amorphous alumina was receiving attention in the forms of thin films or nanoparticles many years ago, yet any attempts to increase the dimensions destabilized its amorphous structure and caused crystallization at even relatively modest temperatures. This issue has been addressed by smart engineering of its lattice strain, which allows the formation of a high-temperature stable bulk alumina. In this review, we present the recently developed synthetic methods and provide insights in sustaining the amorphous structure of widely used alumina. We highlight its adoptable short-range structure and morphology, emphasize the corresponding tuning of the mechanical and electronic properties, and illuminate the advanced applications in wear and scratch resistant coatings, corrosion protection, insulator layers, capacitor, luminescent material, and catalysis.
机译：在现代技术中，研究人员热衷于自上而下的方法，以定制从散装中的材料进入纳米形式。对于无定形氧化铝，这是另一种方式。无定形氧化铝在多年前以薄膜或纳米粒子的形式受到关注，但任何增加尺寸的尝试使其无定形结构变得不稳定，并且在甚至相对适度的温度下引起结晶。晶格菌株的智能工程已经解决了这个问题，这允许形成高温稳定的散装氧化铝。在这篇综述中，我们介绍了最近开发的合成方法，并提供了维持广泛使用的氧化铝的无定形结构的见解。我们突出了其可采用的短距离结构和形态，强调了机械和电子性能的相应调整，并照亮了耐磨和耐刮擦涂层的先进应用，腐蚀保护，绝缘层，电容器，发光材料和催化。

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