The word metal is derived from the Greek language where it means mine or quarry when translated into English. In general, metals are good conductors of heat and electricity. Metals are ductile and malleable. By being malleable, it is meant that they can be hammered into sheets whereas ductility means one can draw them into wires. These substances have the capability of being chemical elements or alloys like iron and stainless steel respectively. This is worth knowing about AZ metals.
The definition of the term metal may vary depending on the subject of consideration. For instance, in physics, the term may refer to any material that is capable of conducting electricity at a temperature of absolute zero. Many compounds and elements that are generally not categorized under metal usually become metallic when subjected to a high level of pressure. An example is where iodine become metallic when subjected to pressure levels of between 40 and 170 thousand times that of atmospheric pressure.
The crust of the earth comprises of 25 percent metal. The abundance of metal makes them common in almost every aspect of modern life. Certain metals have more uses than others because of the differences in their properties. Durability and strength are two properties that most metallic materials exhibit. Their strength and durability makes them suitable for building structures such as bridges and skyscrapers.
Aircrafts, stationery, utensils, furniture, vehicles, tools, pipes, and home appliances are examples of products made from metal. Anciently, coinage was done using precious metals. However, this has now extended to a minimum of twenty three elements on the periodic table.
The use of copper is often thought to be the beginning of the history of metal. This happened some 11 thousand years ago. The use of bronze was introduced in the 5th millennium BCE. Before bronze was introduced, other metals such as lead, brass, iron, gold, and silver were already in use. Early forms of steel were then invented before sodium was discovered in 1809 as the first light metal.
A lot of products and processes started using sophisticated forms of alloy following the Second World War. If a compound contains more than one element and one of the elements is a metal, the compound is called an alloy. Alloys are metallic in nature with metallic properties. The compositions of an alloy may be variable or fixed based on chemical elements it is made of.
There are various reasons why making alloys is important. The pure form of metal tends to be chemically reactive, too soft, or brittle to be used in that form. That is why making alloys is essential. When one combines different ratios of metals, they will end up with a substance whose metallic properties are different from its constituents. Alloys are made so as to make them less brittle, corrosion resistant and harder.
Alloys also have a more desirable luster or color than pure metal. Even though there are very many alloys in use today, the most abundant alloys are those of iron. The abundance is measured based on commercial use and quantity. Some common alloys of iron are tool steel, alloy steel, cast iron, stainless steel, and carbon steel.
The definition of the term metal may vary depending on the subject of consideration. For instance, in physics, the term may refer to any material that is capable of conducting electricity at a temperature of absolute zero. Many compounds and elements that are generally not categorized under metal usually become metallic when subjected to a high level of pressure. An example is where iodine become metallic when subjected to pressure levels of between 40 and 170 thousand times that of atmospheric pressure.
The crust of the earth comprises of 25 percent metal. The abundance of metal makes them common in almost every aspect of modern life. Certain metals have more uses than others because of the differences in their properties. Durability and strength are two properties that most metallic materials exhibit. Their strength and durability makes them suitable for building structures such as bridges and skyscrapers.
Aircrafts, stationery, utensils, furniture, vehicles, tools, pipes, and home appliances are examples of products made from metal. Anciently, coinage was done using precious metals. However, this has now extended to a minimum of twenty three elements on the periodic table.
The use of copper is often thought to be the beginning of the history of metal. This happened some 11 thousand years ago. The use of bronze was introduced in the 5th millennium BCE. Before bronze was introduced, other metals such as lead, brass, iron, gold, and silver were already in use. Early forms of steel were then invented before sodium was discovered in 1809 as the first light metal.
A lot of products and processes started using sophisticated forms of alloy following the Second World War. If a compound contains more than one element and one of the elements is a metal, the compound is called an alloy. Alloys are metallic in nature with metallic properties. The compositions of an alloy may be variable or fixed based on chemical elements it is made of.
There are various reasons why making alloys is important. The pure form of metal tends to be chemically reactive, too soft, or brittle to be used in that form. That is why making alloys is essential. When one combines different ratios of metals, they will end up with a substance whose metallic properties are different from its constituents. Alloys are made so as to make them less brittle, corrosion resistant and harder.
Alloys also have a more desirable luster or color than pure metal. Even though there are very many alloys in use today, the most abundant alloys are those of iron. The abundance is measured based on commercial use and quantity. Some common alloys of iron are tool steel, alloy steel, cast iron, stainless steel, and carbon steel.
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