Changes

Superconductive materials are separated into two distinct categories.

Superconductive materials are separated into two distinct categories.

''Type I superconductors'' are those with pure metal lattices. They were the first discovered, and their critical temperature lies very close to [[absolute zero]] (–459.67°F). Examples of Type I superconductors and their critical temperatures (in [[Kelvins]]) include aluminium (1.2K), lead (7K), mercury (4K), tin (4K), titanium (0.4K), tungsten (0.015K) and zinc (0.85K).

''Type I superconductors'' are those with pure metal lattices. They were the first discovered, and their critical temperature lies very close to [[absolute zero]] (–459.67 °F). Examples of Type I superconductors and their critical temperatures (in [[Kelvins]]) include aluminium (1.2K), lead (7K), mercury (4K), tin (4K), titanium (0.4K), tungsten (0.015K) and zinc (0.85K).

''Type II semiconductors'' are those synthetically produced by scientists, and are typically metal based ceramics. Their critical temperatures range from -459.67°F up to about -211.27°F. These temperatures are more plausible than those exhibitted by Type I superconductors, and as such Type II superconductors have seen more extensive application.

''Type II semiconductors'' are those synthetically produced by scientists, and are typically metal based ceramics. Their critical temperatures range from -459.67 °F up to about -211.27 °F. These temperatures are more plausible than those exhibitted by Type I superconductors, and as such Type II superconductors have seen more extensive application.

==Application==

==Application==

===Transport===

===Transport===

Superconductors are utilised in train systems to levitate the train above the tracks, reducing friction, allowing for speeds up to 300 mph. There are six train systems in the world which utilise maglev technology, with 2 under construction and six further proposals.

Superconductors are utilised in train systems to levitate the train above the tracks, reducing friction, allowing for speeds up to 300 mph. There are six train systems in the world which utilise maglev technology, with 2 under construction and six further proposals.

There are two main types of maglev transport.

There are two main types of maglev transport.

===Scientific Research===

===Scientific Research===

The high magnetic fields afforded by superconductors are extensively harnessed in [[particle accelerators]] allowing for high speed acceleration of electrons and ions. The proton accelerator at Fermilab uses 774 superconducting magnets in a ring of circumference 6.2km.

The high magnetic fields afforded by superconductors are extensively harnessed in [[particle accelerators]] allowing for high speed acceleration of electrons and ions. The proton accelerator at Fermilab uses 774 superconducting magnets in a ring of circumference 6.2 km.

===Industrial Use===

===Industrial Use===