Kinetics of the Oxidation of Antimony
Kinetics of the Oxidation of Antimony
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锑氧化动力学
DOI：
10.1149/1.2427650
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发表时间：
1960
影响因子：
3.9
通讯作者：
T. Turnbull
中科院分区：
文献类型：
--
作者：
A. Rosenberg;A. Menna;T. Turnbull
本文研究了265~ 385~ 385之间锑的氧化反应。反应的特征是：反应初期为抛物线型增长速率，然后退化为与时间无关的增长速率，反应受（Sb~ O~）~从表面区向炉外冷壁的气相扩散控制。稳定速率随氧气压力的增加和扩散长度的增加而减小。Sb~ O~在Sb表面形成一层致密的Sb~ O~层，并支持Sb~ O~的进一步生长。对生成（Sb~ Os）_2（g）的反应动力学数据进行了分析，得到了反应的热化学参数，并与已知的2Sb~ Os（s）~（Sb ~（20））_2（g）平衡数据进行了比较。为了提供一个合适的参考框架，有必要研究元素锑本身的氧化。本文研究了在265~ 280 ℃范围内该反应的动力学。
The oxidation of antimony has been studied between 265~ and 385~ The reaction is characterized by an initially parabolic growth rate, which degenerates into a time-independent rate, controlled by the gaseous diffusion of (Sb~ O~)~ from the surface region to the cold wall outside the sample furnace. The stationary rate decreases with increasing oxygen pressure and with increasing diffusion length. A compact layer of Sb~ O~ forms on the antimony surface and supports a further overgrowth of Sb~ O~. Kinetic data have been analyzed to obtain thermochemical parameters for the reaction which yields (Sb~ Os) 2 (g) and agreement is obtained with known data for the equilibrium 2Sb~ Os (s)~(Sb20~) 2 (g).Several studies now in progress in these laboratories (1) deal with the oxidation of intermetallic compounds containing antimony as a principal element. To provide a suitable frame of reference, it has been necessary to examine the oxidation of elemental antimony itself. The present article is concerned with the kinetics of this reaction in the temperature range, 265~~