carborundum
Aussprache: [kɑːrbəˈrʌndəm]
Wort
Kontext: „material science“
(noun) Carborundum is a very hard material made of silicon carbide. It's often used for making tools that grind or cut other materials because it’s really tough.
Beispiel
The workshop uses carborundum to create strong cutting tools that last a long time.
Beispiel
The standard tools couldn't compete with the durability of carborundum, as they wore out quickly.
Beispiel
Do you know why carborundum is preferred for manufacturing cutting tools?
Kontext: „historical product“
(noun) Carborundum was originally a trademark name for a type of abrasive that is made from silicon carbide. It was first created in the late 19th century.
Beispiel
Back in the day, carborundum was widely used for polishing glass and metals.
Beispiel
Today, most people don't use carborundum as much as they used to because there are better options available.
Beispiel
What do you think made carborundum so popular in the past?
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