1959年,贝尔实验室发现了闪蒸焦耳热技术
点击:0 时间:2023-04-25 21:56:03
Publication Date:June 8, 1959
https://doi.org/10.1021/cen-v037n023.p062
A. NEW, general technique for studying high temperature reactions is being explored at Bell Telephone Laboratories (1). This technique may be helpful in attacking such problems as the structure of coal, prolonging the life of a missile nose cone, or developing protective clothing against nuclear blasts.
The technique is simple. Finely divided absorbing materials such as particles or filaments are suspended in a transparent medium and exposed to a high intensity, high speed flash. This causes the particles to heat to high temperatures and cool again almost instantaneously.
Since only a few milliseconds elapse between initiation and quenching, these thermal reactions do not undergo the usual side reactions that normally occur under longer exposure to high temperatures. Thus, information on the true reaction paths in high temperature transformations should result from studies using this new technique.
Until now, initiating reactions by heating has been a slow process, esp a solid to 1000° C. in a ...
贝尔电话实验室正在探索一种研究高温反应的新的通用技术(1)。这项技术可能有助于解决煤炭结构、延长导弹鼻锥的寿命或开发防核爆炸防护服等问题。
技术很简单。细分化的吸收材料,如颗粒或细丝,悬浮在透明介质中,并暴露在高强度、高速闪光下。这导致粒子几乎在瞬间加热到高温并再次冷却。
由于在引发和猝灭之间只经过几毫秒,这些热反应不会发生通常在较长时间暴露于高温下发生的常见副反应。因此,关于高温转化中真实反应路径的信息应该来自使用这种新技术的研究。
到目前为止,通过加热引发反应一直是一个缓慢的过程,特别是在1000°C的固体中……
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