Such are the general conditions which should be followed in making alloys. Copper melts at 1920 ... it having been found that castings of bronze and brass give, at the second melting (when the ...

The common alloys employed for making journal boxes are much dearer ... Wai In a series of bronze alloys containing tin \fi and copper, it was found that an excess of tin ^U was the cause of ...

Bronze is an alloy of copper and tin - the first man-made alloy. Materials scientist Mark Miodownik explains how bronze helped our early ancestors to progress quickly, improving technology and the ...

More than 5,300 years ago, Sumerians added tin to copper to make their weapons and tools stronger. Bronze, the world’s first copper alloy, was born. Copper alloys have come a long way since and ...