The beryllium forms strong, hard alloys with several metals and is used widely as a moderator in atomic reactors.

The blade's hard alloy and the harder, more brittle denticles ground together in a curtain of sparks.

I kicked myself free, scrambling over the top of him until I lay across his chest, feeling the hard alloy of the magazines between us.

Bullets made of hard alloys easily penetrate the Kevlar vests used by police officers.

It is an extremely hard alloy that is used, for example, in vehicle armour in the defense industry.

Something had got into her from the Big Night, something stronger than metal bracing and hard alloys.

They then learned how to make a harder alloy, bronze, by adding tin to the copper.

Pottery was aided by the introduction of the potter's wheel, and they began to add tin to copper to make the harder alloy, bronze.

Durability was accomplished through a new hard alloy, Armalloy, developed through wartime research.

Bell metal is a hard alloy used for making bells and related instruments, such as cymbals.