Will the nichrome survive the kiln firing of the clay plate?
An alternative could be to machine the grooves in a piece of pyrophyllite (known in industry as Grade A Lava).
As mentioned above, not allowing the nichrome to expand independently of the ceramic will result in mechanical failure...
Before you go crazy with expensive high thermal conductivity ceramics, take a careful look at your thermal "system". Often times failure to properly design and specify the faying thermal interfaces introduces enough thermal resistance to offset the improved conductivity of the thermal link. By...
Photos are easy to find on the web. Look here to start.
http://www.csrusa.com/html/milacron-230-10-2.html
Cincinnati's are noted for their rigidity, reliability, precision and ability to remove material. Big plus; there are a number of Cincinnati rebuilders and parts stock available.
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Repost from mech. Eng. other topics.
Here is a link to a thermal design handbook from MIT.. It contains a lot of useful theory and practical information. Useful for terrestrial applications too.
http://web.mit.edu/e_peters/Public/Spacecraft%20Th...
If the link doesn't work, remove the "%20"...
You have many options. 2000 F is cool in the refractory world. An alumina based product from a supplier like Leco in Michigan or Blasch in New York is a starting point. You'll have to do the trade-off dance of wear resistance vs thermal conductivity vs cost.
Bruce
http://accuratus.com
Here is a link to a thermal design handbook from MIT.. It contains a lot of useful theory and practical information. Useful for terrestrial applications too.
http://web.mit.edu/e_peters/Public/Spacecraft%20Thermal%20Control%20Handbook.pdf
If the link doesn't work, remove the "%20" three...
I have uploaded a file called monel.zip. It contains machining guidelines from American Machinists Handbook circa 1940. Perhaps there will be some ideas for you.
Good luck,
Bruce
Bruce...
You might try Hoeganaes Corp. in Cinnaminson, NJ. They produce metal powders for the industry and may be willing to give you a few referrals.
Bruce
http://accuratus.com
Why would you intercept the energy falling directly on a heat transfer surface with an emissivity above 0.8? What is more important is to allow the 5000 K peak radiation of the sun to be converted to heat in your flat black coated drums of water and then prevent the far infrared radiation from...
At 600 or 800 degrees you are probably stuck with a dry joint design.. The fabrication and design of your joining methods will likely dominate the thermal resistance of your design. These joints in general show significant variability. Some factors that affect the thermal resistance include...
Go to this link at Edmunds Optics for a basic education on optical flats: http://www.edmundoptics.com/technical-support/technical-library/marketing-literature/files/eo-optical-flat-manual.pdf
Basically, you are measuring the thickness of the gap between your reference flat and your test...
