/sci/ - Science & Math » Thread #12144539

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/msg/ - Material Science General

Anonymous Mon 21 Sep 04:02:11 2020 No.12144539 View Reply Original Report

Quoted By: >>12144559 >>12144748 >>12145811 >>12145838

Are ferromagnetic domains and crystal grains equivalent?

Anonymous

Anonymous Mon 21 Sep 2020 04:14:02 No.12144559 Report

Quoted By: >>12144565 >>12144587 >>12144643

>>12144539
Why a thread dedicated to one of the most boring thing in the world.

Anonymous

Anonymous Mon 21 Sep 2020 04:16:29 No.12144565 Report

Quoted By: >>12144587

>>12144559
who let idiot normies in here?
but yes I would think they'd be similar

Anonymous

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Anonymous Mon 21 Sep 2020 04:25:33 No.12144587 Report

Quoted By:

>>12144559
The roots of knowledge are bitter, but its roots are sweet.

>>12144565
>but yes I would think they'd be similar
The only issue is that, from this pic, transitions between domains occur within the same crystal grain, which leads me to believe otherwise.

Anonymous

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Anonymous Mon 21 Sep 2020 04:38:58 No.12144632 Report

Quoted By:

>A magnetic domain is a region within a magnetic material in which the magnetization is in a uniform direction.

Anonymous

Anonymous Mon 21 Sep 2020 04:42:22 No.12144643 Report

Quoted By: >>12144669

>>12144559
The fuck? Metalurgics are a pretty fascinating theme. Once you get into guns you realize there's a lot of research into the materials involved.

Anonymous

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Anonymous Mon 21 Sep 2020 04:53:48 No.12144662 Report

Quoted By:

Crystal grains
>A grain is a bunch of crystals (rather than a unit lattice) arranged in a same direction
Image
>Differently oriented crystallites in a polycrystalline material

https://en.m.wikipedia.org/wiki/Grain_boundary

Anonymous

Anonymous Mon 21 Sep 2020 04:57:34 No.12144669 Report

Quoted By:

>>12144643
Guns needs to be hard so that the rifling stays intact. It needs to be strong to resist tensile and shear strain from the explosion. It needs to be resistant to heat fatigue so that the barrel doesn't droop. It needs to be corrosion resistant so that it lasts. It shouldn't expand too much when heated, as that might throw off accuracy and reliability. Am I missing anything?

Anonymous

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Anonymous Mon 21 Sep 2020 05:50:34 No.12144748 Report

Quoted By:

>>12144539
how are REBCO superconductors still superconducting across grain boundaries?
Isn't crystallinity requisite for superconduction?

Anonymous

Anonymous Mon 21 Sep 2020 15:54:51 No.12145811 Report

Quoted By:

>>12144539
WHAT THE FUCK, WE HAVE A GENERAL ON SCI ???

ps.: hello my fellow mat.scientists

Anonymous

Anonymous Mon 21 Sep 2020 15:59:12 No.12145838 Report

Quoted By:

>>12144539
you might find this helpful
https://www.researchgate.net/profile/Narendra_Kumar133/post/Differece_between_Crystals_Grains_Domains/attachment/5db1d6b7cfe4a777d4e9a372/AS%3A817572689756161%401571935927799/download/adfm.201002142.pdf

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