Materials Science by Malachi Ohlmeier

Materials Science by Malachi Ohlmeier https://padlet.com/3079737/d5u6pjbbnd5n6516 Made with charm en-us 2021-05-04 13:13:57 UTC 2024-11-14 11:26:11 UTC hello@padlet.com My definition 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489476355 The study of material characteristics based off its properties ]]> 2021-05-04 13:17:47 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489476355 Definition 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489512953 - Understanding and using the materials in our daily lives
- Study of the materials in our lives and how they can be changed or manipulated
- The study of available materials and the search for new ones
- Describes the understanding of the solids that emerges from the combined viewpoints of chemistry, physics, and engineering
- Involves the generation and application of knowledge relating the composition, structure and processing of materials to their properties and uses]]> 2021-05-04 13:25:01 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489512953 Metals 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489526553 - Solid
- Can conduct electricity
- Can conduct heat

]]> 2021-05-04 13:27:45 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489526553 Polymers 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489526887 - Natural & Artificial
- Can be flexible ]]> 2021-05-04 13:27:49 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489526887 Ceramics 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489527389 - Combination of multiple materials
- High temps are used to construct its form ]]> 2021-05-04 13:27:55 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489527389 Composites 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489528115 - Combination of materials ]]> 2021-05-04 13:28:03 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489528115 Score 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489653147 20/22]]> 2021-05-04 13:51:51 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489653147 Metals 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489656550 - Copper pipe fitting
- Wire
- Silver hollow Al
- Copper Tube
- Al Foil
- Cu Wool]]> 2021-05-04 13:52:29 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489656550 Polymers 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489661179 - Gray Foam
- Bubble Wrap
- Green Balloon
- Rubber Cork
- Plexiglass
- Latex Glove
- PVC
- Rubber Liner
- Blue Tube ]]> 2021-05-04 13:53:25 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489661179 Ceramics 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489668866 - Shell
- Glass Plate ]]> 2021-05-04 13:54:55 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489668866 Composites 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489670664 - Yellow Mylar Balloon
- Cardboard Roll
- Amazon Envelope
- Purple Foam w/ Hard Layer
- Plywood]]> 2021-05-04 13:55:16 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489670664 Assembly 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489674541 - Light Bulb]]> 2021-05-04 13:56:01 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489674541 My Summary 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489707488 I found the sudden drop of material usage from around 1900-1980 drastic and shocking. It also surprises me the more balanced material usage we are on now.]]> 2021-05-04 14:02:19 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489707488 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489725505 2021-05-04 14:05:55 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489725505 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489739783 2021-05-04 14:08:42 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489739783 Terms 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489927624 Dendrites- crystals growing out from other crystals
- crystal branches

Grains/ Crystals- individual crystals in a solid

- start growing in different places and meet up

- group of atoms that form a particular repeating pattern

Grain Boundary- where grains meet up in a solid

- smaller crystals have more grain boundaries

- affect physical properties

]]> 2021-05-04 14:43:52 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1489927624 Types 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490012043 - Substitutional
- Interstitial
- Vacancy]]> 2021-05-04 15:00:02 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490012043 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490049580 2021-05-04 15:07:02 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490049580 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490060174 2021-05-04 15:08:54 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490060174 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490177458 2021-05-04 15:30:34 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490177458 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490180127 2021-05-04 15:31:01 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490180127 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490184342 2021-05-04 15:31:46 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1490184342 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498038707 2021-05-06 13:27:43 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498038707 Stress Strain Curve Notes 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498042748 Stress (cause): Force causing deformation/distortion

Strain (effect): The effect of the stress

]]> 2021-05-06 13:28:30 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498042748 Notes 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498128856 Corrosion: Oxidation of a metal
- Material returning to a lower
energy state

Reduced = Pure Metal = Elemental Metal = Metallic Atoms

Oxidized = Compounded Metal = Ceramic Material = Metallic Ions ]]> 2021-05-06 13:44:44 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498128856 Corrosion Properties 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498242314 - Electrochemical reaction between an element and its environment
- Has the tendency of a metal to return to its original state
- Involves the flow of DC current
- Is a natural process ]]> 2021-05-06 14:05:38 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498242314 Causes 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498252998 - Dissimilar metal
- Differential Aeration
- Environmental concentration differences
- Bacteria
- Stress
- Erosion
- Temperature ]]> 2021-05-06 14:07:38 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498252998 Corrosion Control Options 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498493742 Cathode Protection
Coating or Liners - Urethane/Epoxy
Galvanization - Bimetallic
Sacrificials - Mg/Al/Zn

]]> 2021-05-06 14:51:59 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498493742 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498937005 2021-05-06 16:15:34 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498937005 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498943469 2021-05-06 16:16:49 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1498943469 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503317066 2021-05-07 17:20:16 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503317066 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503336178 2021-05-07 17:24:29 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503336178 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503357982 2021-05-07 17:29:08 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503357982 Definition 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503641011 - Two inherently different materials that when combined together produce a material with properties that exceed the constituent materials]]> 2021-05-07 18:32:59 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503641011 Fiber Reinforced Polymer Matrix 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503649817 Matrix
- Transfer load to reinforcement
- Temperature resistant
- Chemical resistant
Reinforcement
- Tensile properties
- Stiffness
- Impact resistant

]]> 2021-05-07 18:35:09 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1503649817 Material Properties 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513912800 Stiffness- Ability of a material to resist deflection or stretching

Toughness- Work per unit volume required to fracture material

Machinability- Way a material responds to specific machining techniques ]]> 2021-05-11 15:38:49 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513912800 Woods 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513949451 Pro- Good strength to weight ration, easy fabrication, widely available

Cons- Sensitive to moisture, rot and insect damage

$$]]> 2021-05-11 15:45:49 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513949451 Aluminum Alloys 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513955437 Pro- Good strength to weight, Most abundant, easily formed, Great resistance to corrosion

Cons- Relatively soft, Becomes brittle with too much heat

$]]> 2021-05-11 15:47:00 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513955437 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513961103 2021-05-11 15:47:51 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513961103 Ways Metal Can Be Formed 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513963723 Forging- Material is plastically deformed by large compressive forces in closed dies

Extrusion- Material is forced through dies to create a uniform cross section

Casting- Liquid material is solidified in a mold

Stamping- Creating a form with a die set ]]> 2021-05-11 15:48:22 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1513963723 Steel 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514006363 Pro- Cheap and easy to form, high strength to weight ratio, good at high temps, use in engine mounts and fuselage

Cons- Impacted by heat, potential for corrosion if not treated

$]]> 2021-05-11 15:56:35 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514006363 Titanium 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514018772 Pro- Great strength to weight ratio, good at high temps, corrosion resistant, landing gear

Cons- Difficult to form, impacted by impurities, high fabrication costs

$$$$$]]> 2021-05-11 15:59:05 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514018772 Magnesium Alloy 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514032794 Pro- Good strength to weight ratio, good at high temps, easily formed

Cons- Corrosive and flammable, must be visible

$$$]]> 2021-05-11 16:01:22 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514032794 Nickel Alloy 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514040135 Pros- High temp tolerant, excellent for hypersonic and re-entry

Cons- Heavy, difficult to form

$$$]]> 2021-05-11 16:02:46 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514040135 Composites 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514067477 Pros- Can be light weight and durable, resistant to corrosion and heat. easy to form, readily available

Cons- Hard to repair

$]]> 2021-05-11 16:08:02 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514067477 Ceramics 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514078266 Pros- High temp resistant

Cons- Hard to form, heavy, brittle

$$$]]> 2021-05-11 16:09:55 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514078266 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514131862 2021-05-11 16:20:34 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514131862 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514137855 2021-05-11 16:21:31 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514137855 Moment of Inertia (I)(in^4) 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514161003 - High moment of inertia produces greater resistance to deformation

- Must be same material to compare

- Orientation matters]]> 2021-05-11 16:25:57 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514161003 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514169980 2021-05-11 16:27:43 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514169980 Modulus of Elasticity (E)(psi) 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514171861 - Also known as Young's modulus

- High E produces greater resistance to deformation

- How much force is applied compared to how much the material deforms

- Can compare different materials with same size and shape and orientation ]]> 2021-05-11 16:28:06 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514171861 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514185730 2021-05-11 16:30:48 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1514185730 3079737 https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1522022169 2021-05-13 17:34:37 UTC https://padlet.com/3079737/d5u6pjbbnd5n6516/wish/1522022169