10 things you may not know about superconductivity
2011 marks the 100th anniversary of the discovery of superconductivity, the ability of some materials to conduct electricity with zero energy loss when cooled to extremely low temperatures.
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John Baust elected president of American College of Cryosurgery
Dr. John Baust, UNESCO Professor and Director of the Institute of Biomedical Technology at SUNY's Binghamton University, has been elected President of the group, which promotes the highest possible standards in clinical practice, continuing education and research in cryosurgery, raising public awareness in the uses of cryosurgery, and providing a...
Space Shuttle Endeavour to deliver Alpha Magnetic Spectrometer
When the next-to-last Space Shuttle, Endeavour, is launched on April 29 it will be carrying the $2 billion Alpha Magnetic Spectrometer (AMS) particle detector, an instrument designed to detect dark matter, antimatter and other exotic phenomena.
“100 Years of Superconductivity” Symposium commemorates important anniversary
The "100 Years of Superconductivity" Symposium and Technology Milestone Dedications held April 8 in Leiden, The Netherlands, were major commemorations of this important anniversary.
Physicists pay sad visit to SSC site
A blog by Hamish Johnston on physicsworld.com reports that a group at the American Physical Society March meeting in Dallas “broke in” to the old Superconducting Super Collider (SSC) site just south of the town for a look at the derelict project.
SOFIA makes its first flight, carrying German science instrument
The Stratospheric Observatory for Infrared Astronomy (SOFIA) completed its first science flight on April 6, using the German Receiver for Astronomy at Terahertz Frequencies (GREAT) scientific instrument.
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Cold Compressors
A common way to provide cooling below the normal boiling point of helium (4.2K) is to reduce the pressure above the bath of liquid helium, thus also reducing the bath’s equilibrium saturation temperature. For example, to produce a 1.8K bath of liquid helium, the saturation pressure has to be reduced...
Kapitza Conductance
Kapitza conductance refers to the heat transfer between a solid surface and a fluid that covers that surface. Fundamentally, it describes the inherent difficulty in transferring energy from a solid to the fluid covering the solid surface. This phenomenon was first observed by P. L. Kapitza in 1941 while studying...
Thermosyphons
A thermosyphon (or thermosiphon) is a device that transfers heat via natural convection in a fluid. The natural convection is driven by gravity with the colder, denser fluid flowing downhill and the warmer, less dense fluid flowing back up. Thus, thermosyphons connect an object to be cooled with a reservoir...
Air Separation and Liquefaction
by Nils Tellier, PE, President, EPSIM Corporation (CSA CSM) nils@epsim.us All illustrations courtesy EPSIM Corporation Background History of Air Separation and Liquefaction This section builds on a rich history of methods to develop deep refrigeration and cryogenic liquefaction during the 19th Century. You are encouraged to read Cryo Central’s History...
Bose-Einstein Condensate
A Bose-Einstein condensate, first proposed in 1925 by Albert Einstein based on work done by Satyendra Nath Bose (the same Bose from whom the term boson is derived), is a super-cold state of matter in which almost all of the individual atoms have “condensed” down to the lowest possible quantum...
Cold Technology for Pest Control
While it does not reach temperatures cold enough to be called cryogenic, carbon dioxide snow is at the heart of a new way of dealing with unwanted pests. It utilizes a quick freezing process that takes advantage of the properties of carbon dioxide snow and has a number of benefits...
Cryogenic Finishing
The following 3 articles discuss the uses and procedures of various type of cryogenic finishing. 1) By Robin A. Rhodes, Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Cryogenic Deflashing is employed to remove undesired residual mold flash that remains on molded parts after they are removed or ejected from the...
Source to help with cryo-treating a Nickel-Aluminum-Bronze impeller?
I am a graduate student at Penn State University working on a cavitation resistance project via cryo-treating a Nickel-Aluminum-Bronze impeller.
Looking for technical papers on the effect of processing metals at liquid helium temperatures.
I am a metallurgical engineer looking for technical papers on the effect of processing metals at liquid helium temperatures. In anyone familiar with any work in this field?
Quantitative data on mechanical properties for AISI 4340 alloy steel
I have a potential client who is looking for quantitative data on mechanical properties, particularly fatigue properties, with and without cryogenic tempering at -300/-320 degrees F for AISI 4340 alloy steel. Can you point me in the right direction?
Cryogenic processing for medical equipment, mining industry
Greetings from Australia. I am looking for a company that I might contact that has any experience or has done any research into cryogenic processing for medical equipment, in particular, joint prosthesis.