⚗ Material Sciences

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Heat conductivity of stacked metal sheets

Hi everybody! Does any one of you know where I can get heat conductivity values of stacked metal sheets in the stacking...
1 comments posted 21yrs
posted by zickermann
1 comments posted 21yrs posted by zickermann

Does Bleach 'Evaporate'??

We recently moved into a house that has a septic system. The killer is that you can't use any type of bleach in the lau...
2 comments posted 21yrs
posted by rileyesi
2 comments posted 21yrs posted by rileyesi

Can diamond now be used for telescope mirrors?

Note that the glass used for large telescope mirrors is used to maintain their shape because of its strength and lightn...
13 comments posted 21yrs
posted by rgregoryclark
13 comments posted 21yrs posted by rgregoryclark

Ni-Cr Alloy Now Cheaper Than Steel On A Power Basis

. . . >Turbines so far have only been made of expensive materials whose cost >can not be reduced Ni-Cr alloy may cost 3...
0 comments posted 21yrs
posted by bretcahill
0 comments posted 21yrs posted by bretcahill

Geopolymers

Are there any good textbooks on making geopolymers out there?
1 comments posted 21yrs
posted by tinyp
1 comments posted 21yrs posted by tinyp

Steel shortage

Recently, Nissan Manufacturing shut down a vehicle plant because of a shortage of steel. Toyota is touting a new compos...
14 comments posted 21yrs
posted by jtnospam
14 comments posted 21yrs posted by jtnospam

Nanoceramics availability

Hello, Does anyone know where ceramic powders having particle size around 20-200 nm could be purchased? Especially sili...
1 comments posted 21yrs
posted by jari.keskinen
1 comments posted 21yrs posted by jari.keskinen

non sparking metal material (mechanical sparking)

Hello! Does anyone know whether brass really is non sparking if there is friction with other materials? until now I alw...
2 comments posted 21yrs
posted by siegfried.kufner
2 comments posted 21yrs posted by siegfried.kufner

GM241M properties

Can anyone tell me the properties of GM241M and if they have any knowledge of using it at temperatures of 700C? Thanks J...
0 comments posted 21yrs
posted by scotttorbett
0 comments posted 21yrs posted by scotttorbett

Lens

I'm looking for a shop in Manhanttan that cares with optical instruments for the textile industry. I'm looking specific...
3 comments posted 21yrs
posted by leilas
3 comments posted 21yrs posted by leilas

Help- Senior Thesis, win $25.

Hi, my name is Jack Kirby. I'm a psychology major at Bates College in Maine. I'm studying domestic labor issues. I am c...
0 comments posted 21yrs
posted by jkirby1983
0 comments posted 21yrs posted by jkirby1983

which is the velocity?

Sorry, I dunno anything about materials. I would like to know the formula to figure out the longitudinal and shear velo...
4 comments posted 21yrs
posted by tramoman
4 comments posted 21yrs posted by tramoman

Biodiesel for Home Heating Oil?

I would think that the methyl ester of fatty acids from restaurant fry baths would work as well in home heating oil uni...
9 comments posted 21yrs
posted by jtnospam
9 comments posted 21yrs posted by jtnospam