What is the Thermal Conductivity K of Ceramic Used in Car Brake Discs?

[heiroglif]

Hi id just like some info on the type of ceramic used in car brake discs and where i can find its thermal conductivity K?

Thanks!

 

[berkeman]

I googled brake disk pad ceramic thermal constant, and got some promising hits. Here's the hit list:

http://www.google.com/search?hl=en&q=brake+disk+pad+ceramic+thermal+constant

The paper in the first hit looks useful, but I think you have to pay for it. You might click through a few of the other hits to see if they have the quantitative thermal info you need. Worst case you could get an old brake pad from your local workshop where they service brakes (I'm sure they have some old ones that they were going to throw away), and do the measurement yourself.

 

[heiroglif]

i mean if someone know the actual type of ceramic i could find its thermal K,
i know there's different types, so i just want to find the right one...

thanks for your reply

 

[berkeman]

Hmmm. Okay, so I changed my google search to brake disk pad ceramic type, and got a different set of hits. This one had a nice discussion:

http://www.aa1car.com/library/2004/ic10422.htm

But from it, it sounds like the different brake pad manufacturers may keep the material mix details proprietary. Maybe from this new hit list you can find some more details:

http://www.google.com/search?hl=en&safe=off&q=brake+disk+pad+ceramic+type

 

[heiroglif]

ok...yeah that looks good...thanks for the help