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 meaning of the word metal varies depending on the subject being considered. For example, the term might be used to refer to any element that can conduct electricity at absolute zero temperature in Physics. Most elements and compounds that are not considered as metal generally are often metallic when put under high pressure levels. Iodine is a good example because it becomes metallic when put under levels of pressure ranging from 40 to 170 times that of the pressure of the atmosphere.
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.
Products that are made from metal include aircraft, furniture, pipes, tools, home appliances, stationery, utensils, vehicles and many more. Coinage used to be made from precious metal in the old days but that is not the case anymore. Twenty three more elements on the periodic table are used to make coinage.
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.
More sophisticated alloys started to be produced and used in most processes and products after world war two. Alloys are usually described as substances that are composed of more than one element whereby one is a metal. Usually, they contain metallic properties. The composition might be variable or fixed. This depends on the chemical elements used in making the alloy.
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.
More desirable colors and lusters are contained in alloys than in pure metal. Although many alloys are being used today, those of iron are the most abundant. Their commercial use and quantity are used to measure their abundance. Some of the popular alloys of iron are carbon steel, stainless steel, cast iron, alloy steel, and tool steel.
The meaning of the word metal varies depending on the subject being considered. For example, the term might be used to refer to any element that can conduct electricity at absolute zero temperature in Physics. Most elements and compounds that are not considered as metal generally are often metallic when put under high pressure levels. Iodine is a good example because it becomes metallic when put under levels of pressure ranging from 40 to 170 times that of the pressure of the atmosphere.
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.
Products that are made from metal include aircraft, furniture, pipes, tools, home appliances, stationery, utensils, vehicles and many more. Coinage used to be made from precious metal in the old days but that is not the case anymore. Twenty three more elements on the periodic table are used to make coinage.
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.
More sophisticated alloys started to be produced and used in most processes and products after world war two. Alloys are usually described as substances that are composed of more than one element whereby one is a metal. Usually, they contain metallic properties. The composition might be variable or fixed. This depends on the chemical elements used in making the alloy.
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.
More desirable colors and lusters are contained in alloys than in pure metal. Although many alloys are being used today, those of iron are the most abundant. Their commercial use and quantity are used to measure their abundance. Some of the popular alloys of iron are carbon steel, stainless steel, cast iron, alloy steel, and tool steel.
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