which is lighter, titanium or uliminum?

[J mAn]

dito

[J mAn]

sorry, delete one of them

[gubbs3]

I'm pretty sure aluminum is lighter but titanium is way stronger.

[prime]

Titanium has the hightest tensile strength to weight ratio of any metalalic compound.

Here is a matrix of the most common high tensile metals:

[Sorry, my HTML didn't get along with the BBS HTML] Here's an image instead:

http://albums.photopoint.com/j/View?u=422216&a=11667432&p=41350682


[This message has been edited by prime (edited 02-19-2001).]

[pp13b]

cool, now thats what i call info..

[pp13b]

hmm i think somethings dead>

[Killer_TL01]

excellent post prime. In a way Titanium can be lighter than Almn. Heres the way. You can end up having the same weight of the two and the Ti will have less mass (the amount of space it takes up) so by using less space to equal the same weight you can produce smaller objects. Plus with the tensil strength of Ti you can make it smaller and lighter than Almn without sacrificing strength. Anyways magnesium is lighter than almn but it reacts with water with a violent reaction. Plus Almn when it oxidizes it doesnt anymore. When Mg oxidizes it continues to. I guess this is a spot where taking chemistry helps out in the rc world.

[J mAn]

i'm mainly interested in the hardcore titanium stuff. Actualy the skids, but since they are 2 mm thick instead of 3mm like most others i guess it would be about equal. THANKS! that is a good post.

[J mAn]

I can't see the image, i'll try back later. but which is lighter?

[joe]

"magnesium is lighter than almn but it reacts with water with a violent reaction."

tlo1
were did you get this???

[prime]

Yea, I think you'll find Magnesium doesn't react violently with water. At most, it will react with steam to yield pure hydrogen which could potentialy be explosive with ignition.

Mg(s) + 2H2O(g) Mg(OH)2(aq) + H2(g)

When I was in high school, we only used magnesium as a catalyst.

[gubbs3]

Maybe that's why they only sell mag. chassis' for TC's...mud has water in it.

[joe]

who said ya couldn't race TC in the rain !

another element reacts violently with water, one of those group one elements. it will react if you mearly touched it or with water vapor in the air. it's kept submerged in kerosene most of the time.

[RCJunkie]

Sodium and also Potassium are the two group one elements you're thinking of.

[joe]

hehe

i was thinking either Na or K but couldn't rem. which one 8^)

[Killer_TL01]

whoops my bad. I remember doing a lab involving Mg. I dont remember what it reacted with. Mg is lighter than Al but not by much. I guess I was totaly out of my mind. I know too. I got a 53% on my chem test that day. Figuring moles and stuff is confusing. I guess I need to program the info into my calc soon before theres another test

Killer_TL01

[joe]

did your teacher show you the conversion chart meathod? stoiciometry is easy as heck after that!