Tetrataenite - L1[sub]0[/sub]-type FeNi

Thread starter Astronuc
Start date Oct 30, 2023
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Magnetic materials Synthesis

Oct 30, 2023

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Tetrataenite is one of the mineral phases found in meteoric iron.

Various groups are attempting to synthesize on a commercial scale to replace REE-based magnets.

https://en.wikipedia.org/wiki/Tetrataenite

Mixing iron and nickel together in specific quantities, with a phosphorus catalyst, and smelting the mixture, forms tetrataenite in bulk quantities, in seconds.

https://www.lpi.usra.edu/planetary_...nite-may-solve-the-rare-earth-element-crisis/

https://www.cam.ac.uk/research/news...-reduce-reliance-on-rare-earths-in-low-carbon

What is Tetrataenite?

Tetrataenite is a naturally occurring mineral form of iron nickel alloy with the chemical formula FeNi. It is a rare mineral that is found in meteorites and is known for its unique crystal structure.

What is the L1[sub]0[/sub]-type structure of Tetrataenite?

The L1[sub]0[/sub]-type structure of Tetrataenite refers to its specific crystal structure, where the iron and nickel atoms are arranged in a face-centered cubic lattice. This arrangement gives Tetrataenite its unique properties, including high magnetic susceptibility and high hardness.

What are the properties of Tetrataenite?

Tetrataenite is known for its high magnetic susceptibility, high hardness, and unique crystal structure. It is also a rare mineral that is found in meteorites and is often used in research to study the formation and evolution of planetary bodies.

How is Tetrataenite formed?

Tetrataenite is formed through a process known as exsolution, where iron and nickel atoms separate from a parent mineral and recombine to form Tetrataenite. This process typically occurs in meteorites during cooling and can provide insights into the history of the meteorite and the conditions under which it formed.

What are the applications of Tetrataenite?

Tetrataenite has potential applications in various fields, including magnetic storage, data processing, and materials science. Its unique properties make it an attractive material for research and development in these areas.

Dec 22, 2009

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