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首页> 外文期刊>Boletin de la Sociedad Espanola de Ceramica y Vidrio >Application of neutron thermodiffractometry to the study of crystallization processes in sol-gel mullites.
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Application of neutron thermodiffractometry to the study of crystallization processes in sol-gel mullites.

机译:中子热衍射法在溶胶-凝胶莫来石结晶过程研究中的应用。

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摘要

Neutron thermoctirrractometry experiments are carried out with linear increase of temperature as function of time. At each constant time range a pattern is obtained, corresponding to an average of the temperatures in this interval, so an in-situ study of several processes such as crystallization from amorphous powders and phase transitions is possible. Mullite is a wellknown material, however some controversial concerning aspects of its formation still remains. This is the case of the knowledge about the full phases sequence during mullite crystallization, even more if some transition metal is present in the system. In the present paper we use this techique to analyse, in real time, the Cr-doped mullite formation from an amorphous gel heated in the temperature range of 200-1400 deg C.
机译:在温度随时间线性增加的情况下进行中子热晶体测定实验。在每个恒定的时间范围内,都会获得一个模式,对应于该时间间隔内的平均温度,因此可以对几种过程进行原位研究,例如从无定形粉末中结晶出来并发生相变。莫来石是一种众所周知的材料,但是仍然存在一些有关其形成方面的争议。这是关于莫来石结晶期间全相序列的知识的情况,即使系统中存在某些过渡金属,甚至更多。在本文中,我们使用该技术实时分析了在200-1400摄氏度的温度范围内加热的无定形凝胶中的Cr掺杂莫来石形成。

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