What is alnico?
Q: What is alnico?
A: Alnico is a type of alloy made up of iron, aluminium, nickel, and cobalt.
Q: What is the name alnico derived from?
A: The name alnico is an acronym derived from the elements it contains: Al, Ni, and Co.
Q: What other elements may be present in alnico?
A: Copper and sometimes titanium may be present in alnico.
Q: What properties do alnico alloys possess?
A: Alnico alloys are ferromagnetic, have a high coercivity, and are used to make permanent magnets.
Q: What is coercivity?
A: Coercivity refers to how resistant a material is to losing its magnetism.
Q: What was the strongest type of magnet before rare-earth magnets were developed?
A: Alnico magnets were the strongest type of magnet before rare-earth magnets were developed.
Q: When was alnico developed and by whom?
A: Alnico was developed in 1931 by T. Mishima in Japan, who found that an alloy of iron, nickel, and aluminium had double the coercivity of the best magnets of that time.
