Types Of Engineering Materials 3x124i

TYPES OF ENGINEERING MATERIALS Brought to you by: Christian Noga Pamela Pinili

Mark Francis Nogoy Nico Lauras MEC152

 What is materials engineering? Materials scientists and engineers continue to be at the forefront of all of these and many other areas of science, too. Materials science and engineering influences our lives each time we buy or use a new device, machine, or structure. The definition of the academic field of Materials Science & Engineering originate from a realization concerning every application of materials: properties of the material that give it value. A material may be chosen for its strength, its electrical properties, resistance to heat or corrosion, and other important considerations.

 Metals

Metals are comparatively malleable, optically reflective, and electrically conductive. Most metals and alloys are easily shaped by forming. Their disassociate electron bonding makes them excellent conductors of electricity and heat. Almost all metals have an orderly arrangement of atoms, resulting in a crystalline structure that may have multiple crystal phases bordering each other.

 Kinds of metals o Ferrous Metal o Non Ferrous Metal  Ferrous metals include mild steel, carbon steel, stainless steel, cast iron, and wrought iron. These

metals are primarily used for their tensile strength and durability, especially mild steel which helps

hold up the tallest skyscrapers and the longest bridges in the world. You can also find ferrous metals in housing construction, industrial containers, large-scale piping, automobiles, rails for railroad and transportation, most of tools and hardware you use around the house, and the knives you cook with at home. Examples: Carbon Steel, Stainless Steel

 Non-ferrous metals include aluminum, brass, copper, nickel, tin, lead, and zinc, as well as precious metals like gold and silver. While non-ferrous metals can provide strength, they are primarily used where their differences from ferrous metals can provide an advantage

 Non -metal

o Polymer (Organic Materials) o Ceramic Materials

 Polymers are long chain macromolecules built from repeated smaller chemical structures or '-mers.' They are found widely in the natural world (e.g. proteins, rubber, cellulose) and, increasingly the past century, in synthetic form (e.g. "plastics"). Polymers have been central to many technological innovations that shape the modern world, such as film that enabled the cinema, or the progression of vinyl LPs to polycarbonate CDs and DVDs that enabled recorded music and video distribution. There are two types of polymers: • synthetic and; • natural.  Synthetic polymers are derived from petroleum oil, and made by scientists and engineers. Examples of synthetic polymers include nylon, polyethylene, polyester, Teflon, and epoxy.  Natural polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins.  Ceramic- ceramic is an inorganic, non-metallic, solid material comprising metal, nonmetal or metalloid atoms primarily held in ionic and covalent bonds. This category of materials includes things like tile, bricks, plates, glass, and toilets. Ceramics can be found in products like watches (quartz tuning forks-the time keeping devices in watches), snow skies (piezoelectric-ceramics that stress when a voltage is applied to them), automobiles (sparkplugs and ceramic engine parts found in racecars), and phone lines. They can also be found on space shuttles, appliances (enamel coatings), and airplanes (nose cones). Depending on their method of formation, ceramics can be dense or lightweight. Typically, they will demonstrate excellent strength and hardness properties; however, they are often brittle in nature