Cold Facts Digital – Page 63 – The go-to place for Cryogenics and Superconductivity

Advanced Magnet Lab awarded NASA contract for SC machine modeling

The Advanced Magnet Lab, Inc. (AML) has been awarded a three-year research contract from NASA for developing an experimentally validated, high fidelity, physics-based sizing model for high power superconducting machines, such as electrical generators and turbo-electric propulsion fans.

Fermilab researcher reflects on Tevatron’s retirement

At the end of September, Fermilab's famous particle collider the Tevatron will be retired after a dazzling career spanning four decades.

Australian researchers find link between superconductivity and magnetism

Scientists from the University of Sydney are celebrating the 100th anniversary of superconductivity with a discovery of their own.

Communications failure at DOE blamed for helium-3 shortage

Stovepiping within the Department of Energy was responsible for the critical US shortage of helium-3, the rare isotope used in low-temperature physics, medical applications and neutron detection.

Researchers discover mechanism behind superconductivity in pnictides

Researchers in Japan have discovered that a previously unknown and unexpected mechanism gives rise to superconductivity in specific types of materials.

EADS debuts futuristic superconducting electric motor propulsion concept

EADS Innovation Works, the corporate research and technology network of EADS, is showcasing an all-electric propulsion system concept at the Paris Air Show in Le Bourget.

Latest in Defining Cryogenics

Dewar

A dewar is a type of cryostat named after Sir James Dewar, the researcher who first developed the concept of a vacuum insulated container with silvered walls to reflect thermal radiation. Dewar was the first to liquefy hydrogen, and he created the device to store his discovery. The thermos bottle...

Stirling and Gifford-McMahon Cryocoolers

Stirling and Gifford-McMahon (GM) cryocoolers are two of the most commonly used cryocoolers in cryogenics. Both devices have a significant industrial base and operate at a wide range of temperatures and capacities. The thermodynamic cycles for both of these cryocoolers are quite similar. The Stirling cycle consists of a compressor,...

Liquefied Natural Gas (LNG)

A significant commercial application of cryogenics is the liquefaction, transport and storage of natural gas. Liquefied Natural Gas (LNG) is generally 95 percent methane with a few percent ethane and much lower concentrations of propane and butane. LNG liquefies at 111.6 K. Unlike many applications of cryogenics, the motivation for...

Latest in Cryo Central

History of Cryogenics

From the Fall 1999 issue of Cold Facts magazine Millennium Breakthroughs A variety of CSA members give different perspectives on the past millennium: What were the most significant breakthroughs in cryogenics during the past millennium? Prof. R.G. Scurlock, Kryos Technology, scurlock@soton.ac.uk (“Breakthrough” = way through obstacles — Oxford English Dictionary)...

Cryobiology

Andreas Sputtek Past President Society for Cryobiology sputtek@uke.uni-hamburg.de or http://www.sputtek.de/. The word cryobiology (from the Greek words “cryo” = cold, “bios” = life, and “logos” = science) literally signifies the science of life at low temperatures. In practice, this field comprises the study of any biological material or system (e.g.,...

Cryogenic Insulation

James E. Fesmire Cryogenics Test Laboratory NASA Kennedy Space Center james.e.fesmire@nasa.gov Introduction In today’s world, the use of cryogenics and low-temperature refrigeration is taking a more and more significant role. From the food industry, transportation, energy, and medical applications to the Space Shuttle, cryogenic liquids must be stored, handled, and...

Cryogenic Treatment of Materials

F.J. Diekman Controlled Thermal Processing, Inc. info@metal-wear.com Cryogenic Processing (also called cryogenic treatment, and incorrectly “cryogenic tempering”) is a process that uses cryogenic temperatures to modify materials to enhance their performance. Cryogenic Processing involves the slow reduction in temperature of the material to at least -300°F (-185°C) and holding the...

Latest in Ask the Experts

Power requirement to liquefy hydrogen gas?

What is the power requirement to liquefy hydrogen gas?

Effect of cryogenic freezing on tone of bell?

I have been making bells for a few years out of Bell Bronze, 87% Copper. Would cryogenic freezing have any effect on the tone of a bell if I had it treated after casting? Your help would be appreciated.

Thermal conductivity of niobium, tantalum, lead, tin

I am interested in the thermal conductivity and other properties of low temperature superconductors. Specifically I am interested in materials like Niobium, Tantalum, Lead and Tin. Would you know of a publication that dealt with thermal properties in general and also gave specific data on these materials?

Could boxes of paper records be freeze-dried?

In the event of a disaster such as a flood, could boxes of paper records be freeze-dried? Could cryogenics help in the recovery efforts?

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