Multifunctional advanced ceramics from preceramic polymers and nano-sized active fillers
Multifunctional advanced ceramics from preceramic polymers and nano-sized active fillers
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DOI：
10.1016/j.jeurceramsoc.2012.10.006
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发表时间：
2013-03-01
影响因子：
5.7
通讯作者：
Parcianello, G.
中科院分区：
文献类型：
--
作者：
Colombo, P.;Bernardo, E.;Parcianello, G.
本文讨论了在陶瓷先驱体中引入纳米活性填料以实现多功能陶瓷构件的问题。通过在空气或氮气中进行热处理，已经生产了几种硅酸盐和氮氧化物体系，大大拓宽了由陶瓷前体聚合物制成的陶瓷的组成范围。相纯陶瓷得到非常有利的反应动力学，因此在低温和短的加热时间。部件的成型使用多种塑料成型技术进行，例如温压、挤出、注塑、发泡、机加工、熔融沉积和3D打印。这种新方法的一些重要的例子进行了描述，从相对简单的氧化物系统（莫来石，锆石，堇青石，镁橄榄石，钇硅酸盐），更复杂的氮氧化物陶瓷（SiAlON，YSiON）。还报道了关于这些组分的潜在应用的一些结果，范围从结构或热结构功能（散装组分和环境屏障涂层）到更多的功能目的（生物活性陶瓷和无机磷光体）。(C)2012爱思唯尔有限公司保留所有权利。
In this paper, the introduction of nano-sized active fillers into preceramic polymers for the realization of multifunctional ceramic components is discussed. Several silicate and oxynitride systems have been produced, by heat treatment in air or nitrogen, greatly widening the compositional range of ceramics made from preceramic polymers. Phase pure ceramics were obtained with very favorable reaction kinetics, and therefore at low temperature and for short heating times. Shaping of the components was carried out using several plastic forming technologies, such as warm pressing, extrusion, injection molding, foaming, machining, fused deposition and 3D printing. Some significant examples of this new methodology are described, ranging from relatively simple oxide systems (mullite, zircon, cordierite, fosterite, yttrium-silicates) to more complex oxynitride ceramics (SiAlONs, YSiONs). Some results concerning the potential application of these components, ranging from structural or thermo-structural functions (bulk components and environmental barrier coatings) to more functional purposes (bioactive ceramics and inorganic phosphors), are also reported. (C) 2012 Elsevier Ltd. All rights reserved.