For faster navigation, this Iframe is preloading the Wikiwand page for
热冲击.
热冲击(英語:Thermal shock)[1],指热辐射使物体受到局部快速加热。结果是,由于物体各部温度升高速度不同,膨胀程度也不同,故其内部产生应变和应力,有些应力可超过脆性固体的强度,而使它断裂。热膨胀系数大的玻璃器皿,局部受热而破裂是一典型例子。
热冲击使物体所产生应力差别大的原因有二:1.物体局部受热速度过快;2.物体的热膨胀系数大。因而,想避免受热冲击导致物体破裂的主要方法有三个方面[2]:1.避免受热冲击,使物体缓慢而均匀受热;2.选用热膨胀系数小的物体;3.选用强度高热导好的材料。
- ^ Scott L.Swartz, Ceramics having negative Coefficient of thermal expansion,method of making such ceramics and parts made from such ceramics, United States Patent 6066585
- ^ T.J. Lue;N.A.Fleck(1998)"The Thermal shock Resistance of solids" Acta Materials 46(13);4755-4768.
{{bottomLinkPreText}}
{{bottomLinkText}}
This page is based on a Wikipedia article written by
contributors (read/edit).
Text is available under the
CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.
{{current.index+1}} of {{items.length}}
Thanks for reporting this video!
This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:
An extension you use may be preventing Wikiwand articles from loading properly.
If you're using HTTPS Everywhere or you're unable to access any article on Wikiwand, please consider switching to HTTPS (https://www.wikiwand.com).
An extension you use may be preventing Wikiwand articles from loading properly.
If you are using an Ad-Blocker, it might have mistakenly blocked our content.
You will need to temporarily disable your Ad-blocker to view this page.
✕
This article was just edited, click to reload
Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}
Follow Us
Don't forget to rate us
Oh no, there's been an error
Please help us solve this error by emailing us at
support@wikiwand.com
Let us know what you've done that caused this error, what browser you're using, and whether you have any special extensions/add-ons installed.
Thank you!