Archive for the ‘Bronze’ Category
Wednesday, March 14th, 2007
Copper is the oldest metal used by man. It’s use dates back to prehistoric times. Copper has been mined for more than 10,000 years with a Copper pendant found in current day Iraq being dated to 8700BC. By 5000BC Copper was being smelted from simple Copper Oxides.
Copper is found as ...
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Thursday, May 4th, 2006
Like copper, bronze can develop a patina, a green film as a result of long exposure to moist air. This patina will actually protect your bell from many environmental hazards. However, bronze ...
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Thursday, May 4th, 2006
Church bells may be subject over time to structural fatigue. But they are such an important part of our liturgical and cultural heritage, and we want them to last for centuries. Researchers ...
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Thursday, May 4th, 2006
The oldest alloy known to human beings was a bronze made of copper and arsenic. People learned to make it about 3500 B.C. Gradually, people replaced the arsenic with tin. The period ...
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Thursday, May 4th, 2006
For centuries, the basic process of making bells has not changed. Even today, when machines replace handwork, the process still relies on skills handed down for generations.
To make a bell the bell ...
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Thursday, May 4th, 2006
Bronze is an alloy made primarily of copper and tin. It may contain as much as 25 percent tin. Phosphorus, lead, zinc, and other metals may be added for special purposes. For ...
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Saturday, April 8th, 2006
The term gunmetal applied today originates from the mid-19th century, when zinc was first added to binary bronze ordnance parts to improve their casting characteristics. British Admiralty gunmetal, with its nominal composition 88% copper, 10% tin, and, 2% zinc, was thus developed. Similar specifications also became standard, the French ordnance ...
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Saturday, April 8th, 2006
Phosphor bronzes are alloys consisting of tin, phosphorus and copper as main constituents, sometimes with additions of zinc and lead. The structure is made up of three phases:
A matrix of copper with tin in solid solution, known as the alpha phase, which is comparatively soft
A tin rich delta phase which ...
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