Alnico

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/alnico

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Who discovered Alnico?1931
2. What is the primary elements?Iron, Aluminum, Nickel, Cobalt
3. What is the discoverer?T. Mishima
4. What is Alnico and why is it special?Alnico is a mix of iron, aluminum, nickel, and cobalt that makes very strong magnets used in toys and machines.
5. How did scientists discover Alnico?In 1931, a Japanese scientist named T. Mishima found that combining iron, nickel, and aluminum made a magnet twice as strong as the best steel magnets of that time.

Ferromagnetic Alloy: An alloy exhibiting strong magnetic properties, capable of being magnetized and retaining magnetism.
Coercivity: A measure of a magnetic material's resistance to demagnetization; higher coercivity means it's harder to demagnetize.
Remanence: The amount of magnetism left in a material after the magnetizing field is removed; indicates the strength of the permanent magnet.
Directional Solidification: A manufacturing process that controls crystal growth during cooling to align magnetic domains for enhanced performance.