Applications of superconductors: a 15 phases, Physics

An inter metallic compound having the chemical formula A3B, where A represents a transition element and a crystal structure in which the B atoms are located as the corners and in the corner of a cubic unit cell, while the A atoms are arranged in pairs on the cube faces. Also known as A 15 compound. Many A 15 compounds exhibits the phenomena of super conductivity at relatively at high temperature in the neighboured of 20k (-4240F) and in high magnetic fields of the order of several tends of tesla (several hundred kilogauss). High temperature high field super conductivity has a number of important technological applications and is a challenging fundamental research in condensed matter physics. The A 15 compounds crystallize in a structure in which the unit cell, the repeating unit of the crystal structure, has the overall shape of a cube. The B atoms are located at the corners and in the centre of the cube, while the A atoms are arranged in pairs on the cube faces. A special charactistics of the A 15 crystal structure is that the A atoms form mutually orthogonal linear chains that run through the crystal lattice.

The extra ordinary super conducting properties of the A 15 compounds are believed to be primarily associated with these linear chains of transition-elements an atom. Processes have been developed for preparing multifilament super conductor A 15 compound, such as Nb3Sn embedded in a non superconducting copper matrix. Super conducting wires can be used in electric power transmission lines and to wind electrically lossless coils (solenoids) for super conducting electrical machinery (motors and generators) and magnets. Super conducting magnets are employed to produce intense magnetic fields for laboratory research, confinement of high temperature plasmas in nuclear fusion research, bending beams of charged particles in accelerators, levitation of high speed trains, mineral separation and energy storage.

Posted Date: 7/9/2012 3:07:30 AM | Location : United States







Related Discussions:- Applications of superconductors: a 15 phases, Assignment Help, Ask Question on Applications of superconductors: a 15 phases, Get Answer, Expert's Help, Applications of superconductors: a 15 phases Discussions

Write discussion on Applications of superconductors: a 15 phases
Your posts are moderated
Related Questions
How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet change if it is cut into two equivalent pieces transverse to its length?

Resistivity of conductors is most affected by (A) Composition.       (B) Temperature. (C) Pressure.             (D) Current. Ans: Resistivity of conductors is most

A rod follower AB is subjected to a vertical up and down movement while resting on a circular contour of radius 30cm of a cam.the cam moves to the right with a velocity of 5 cm/s a

A 100V battery is linked across a resistor and causes a current of 5mA to ?ow. Verify the resistance of the resistor.  If the voltage is now decreased to 25V, what will be t


Derive expression for total power consumed when three appliances of power p1 p2 nd p3 are connected in series.

Electrical Properties of Dielectric Materials The term "Dielectric strength" of a dielectric material means the maximum electric field strength that it can withstand intrinsica

Define the term multi-mode fibre shortly. Multi-mode fibre: This type of fibre permits more than one mode to travel by this. As this has to permit more number of modes to tr

On transitory from a medium with one index of refraction to a medium with a different index of refraction light is typically both reflected and refracted. Under some conditions how

show that the oscillation of a liquid in a u-tube is in simple harmonic motion