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Can you name some superconductors having high critical temperature?
Vaidhyanathan
some superconductors having high critical temperature :
- YBa2Cu3O7 have Tc=93 K (1987)
- BiSr2CaCu2O8+x Tc=94 K (1988)
- Ta2Ba2Ca2Cu3O10+x Tc=125 K (1988)
- HGBa2Ca2Cu3O8+x Tc=150 K (1993)
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What are most modern high temperature superconductors made of?
Resistance decreases with the decrease of temperature. Superconductors are made by lowering the temperature.
How do you make room temperature superconductors inductor coil?
We currently don't know of any room temperature superconductors; we've managed to find some "high temperature" superconductors, but "high" in this case means "liquid nitrogen temperatures" ... about two hundred degrees Celsius below zero. The lowest naturally occurring temperature ever recorded on Earth is about 184K ... about fifty degrees Celsius above the point at which the highest-known-temperature superconductor becomes superconducting.
What are examples of materials that are superconductors?
Materials that will form superconductors come in two basic varieties, those which are metals or alloys of metals and the newer variety that are ceramic-like materials. Some examples in the metal category are are Mercury, Niobium, Tin, Lead and various alloys and the second category includes the more complex compounds Lanthanum-Barium-Copper Oxide and Yttrium-Barium-Copper Oxide. The first category are the outgrowth from the original discovery of superconductivity in 1911 and are now referred to as low temperature superconductors. The 1986 discovery of a new class of compounds called high temperature superconductors gave rise to the second category. The first category has materials that are limited to about 30 degrees Kelvin above absolute zero. The second includes materials that can remain superconducting up to about 130 K.
How does the temperature of a solid affect its volume?
Temperature is closely linked up to volume. In a solid the species are closely packed. As temperature increase so does the molecular vibrations. At a critical temperature the vibrational energy is sufficiently high that the species break their packing and thus melt into a liquid.
Does temperature does temperature affect viscosity of magma?
High temperature=low viscosityLow temperature=high viscosity
What is the highest critical temperature of superconductor?
133 Kelvin, about -140 Celsius. This is the critical temperature of a mercury -based superconductor. It contains copper-oxide, a common theme, I believe, in high temperature superconductors
What are most modern high temperature superconductors made of?
Resistance decreases with the decrease of temperature. Superconductors are made by lowering the temperature.
What has the author Marcus Langer written?
Marcus Vlasse has written: 'A study of enhancing critical current densities (JC) and critical temperature (TC) of high-temperature superconductors' -- subject(s): High temperature superconductors, Critical currents
What are properties of a superconductors what they are?
A normal conductor has resistance. A superconductor has no resistance. But to make superconductors a very low temperature is required. High-temperature supeconductors require a temperature of minus 203 degrees C, ordinary superconductors require substantially lower temperatures.
What is the definition of low temperature supercoductors?
In a way, all currently existing superconductors are "low-temperature", but some more so than others. The traditional superconductors work up to about 20 K (or minus 253 Centigrade); more recent "high-temperature superconductors" work up to 100 K or so. 100 K is still minus 173 Centigrade, but it is much "hotter" than the traditional superconductors. The new "high-temperature" superconductors apparently work different than the old-fashioned ones; at least, the theory that explains the traditional superconductors fails to explain how the new superconductors work.
What is The highest temperature at which superconductivity has been achieved?
Currently, the superconductor with the highest critical temperature ever recorded is Mercury Barium Thallium Copper Oxide or Hg0.2Tl0.8Ca2Cu3O, which has a critical temperature of 139 K at one atmosphere. This superconductor is a type of ceramic copper oxide and its critical temperature was determined in 1995 by Chakoumakos, Dai, Wong, Sun, Lu, and Xin. Apparently, metal-copper oxide ceramic superconductors have high critical temperatures, which might unlock the key of synthesizing a high temperature superconductor that is superconductive under room temperature conditions.
What has the author Hong Alice Wang written?
Hong Alice Wang has written: 'Reactions during processing of the 123 high Tc superconductor' -- subject(s): Ceramic superconductors, High temperature superconductors
How do you make room temperature superconductors inductor?
We currently don't know of any room temperature superconductors; we've managed to find some "high temperature" superconductors, but "high" in this case means "liquid nitrogen temperatures" ... about two hundred degrees Celsius below zero. The lowest naturally occurring temperature ever recorded on Earth is about 184K ... about fifty degrees Celsius above the point at which the highest-known-temperature superconductor becomes superconducting.
How do you make room temperature superconductors inductor coil?
We currently don't know of any room temperature superconductors; we've managed to find some "high temperature" superconductors, but "high" in this case means "liquid nitrogen temperatures" ... about two hundred degrees Celsius below zero. The lowest naturally occurring temperature ever recorded on Earth is about 184K ... about fifty degrees Celsius above the point at which the highest-known-temperature superconductor becomes superconducting.
How Superconductivity arises in high temperature superconductors?
I think so the super conducting material used will melt
Why was the discovery of high temperature superconductors so startling to scientist?
It was startling because it was said to be impossible by the BCS theory.
Why was the discovery of high-temperature superconductors so startling to scientists?
It was startling because it was said to be impossible by the BCS theory.
