Material properties at cryogenic temperatures

In summary, the person is looking for help in finding electrical and thermal properties of materials at cryogenic temperatures. They have searched the internet and a university library without success and are looking for suggestions and resources. The conversation suggests checking books such as "Thermophysical properties of matter" and "Materials at Low Temperatures" and doing a Google Scholar search for specific papers. The suggestion to look for the CRC Handbook is also given, as well as doing a literature search for individual papers on the desired materials.
  • #1
jollyholly
1
0
hello,
I am trying to find electrical and thermal properties of materials such as alumina, titania, and various metal oxides at 4K and 77K. I have scoured the internet trying to find the properties and have gone to a major university library without success. Any help or resources that you know of would be greatly appreciated.
Thank you!
 
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  • #2
Hi jolly,
The only references that summarize various material properties under cryogenic conditions that I have only cover the typical metals and plastics. Here's a couple I have excerpts from that you might try:
Thermophysical properties of matter by Y. S. Touloukian and C. Y. Ho
also,
Materials at Low Temperatures by Richard P. Reed and Alan F. Clark
http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=6468761
You might look for these in a local university library.

Otherwise, I'd suggest doing a Google Scholar search for specific papers. For example: "Dielectric Properties of Single Crystals of Al2O3, LaAlO3, NdGaO3, SrTiO3, and MgO at Cryogenic Temperatures" by Jerzy Krupta et al.
 
  • #3
have you tried the CRC Handbook?

otherwise you may have to do a literature search for individual papers that deal specifically with these measurements and for the particular materials you are interested in.
 

1. What is the definition of cryogenic temperatures?

Cryogenic temperatures refer to extremely low temperatures, typically below -150°C (-238°F) or 123 Kelvin. At these temperatures, materials exhibit unique properties that are not seen at room temperature.

2. How do materials behave at cryogenic temperatures?

At cryogenic temperatures, materials become more brittle and lose their ductility, meaning they are more prone to breaking or cracking. They also experience thermal contraction, which can cause dimensional changes and stress in the material.

3. What are some common materials used for cryogenic applications?

Common materials used for cryogenic applications include stainless steel, aluminum, titanium, and specialized alloys like Inconel and Hastelloy. These materials have good thermal conductivity and can withstand low temperatures without becoming brittle.

4. How does cryogenic temperature affect the electrical properties of materials?

At cryogenic temperatures, materials exhibit superconductivity, meaning they have zero electrical resistance. This makes them ideal for use in sensitive electronic devices like MRI machines and particle accelerators. However, some materials can also become insulators at low temperatures.

5. What are some challenges in working with materials at cryogenic temperatures?

One major challenge is the risk of thermal shock, where sudden changes in temperature can cause materials to crack or shatter. Another challenge is the need for specialized equipment and handling techniques, as materials may become brittle and difficult to work with at these temperatures.

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