Recupe @ Tuesday 3:15-4:30
Deformations Lab Hand-IN
Homework Check pp. 197-198
Wood Shop Map Correct
Ch. 12: PROPERTIES Mechanical Properties Other Properties Degradation and Protection
Copy the following definitions Text / Work Books Text Book – p. 388 Work Book - p. 199 Copy the following definitions
MECHANICAL PROPERTIES How it reacts when subjected to one or more contraints (p. 388)
DEGRADATION OF A MATERIAL The decline in some of its properties due to the effects of the surrounding environment.
PROTECTION OF A MATERIAL the application of procedures that prevent or delay its degradation.
p. 388
HARDNESS Ability to resist indentation or abrasion
STEEL vs. PLASTIC
ELASTICITY Ability to return to their original shapes after undergoing a constraint .
RESILIENCE Ability to resist shocks without breaking
DUCTILITY Ability to be stretched without breaking
MALLEABILITY Ability to be flattened or bent without breaking.
STIFFNESS Ability to retain their shapes when subjected to various constraints
Nanotubes = Stiffest Material on Earth
p. 389
RESISTANCE TO CORROSION Ability to resist the effects of corrosive substances (water and salt), which cause the formation of rust
Galvanized vs. non Galvanized
ELECTRICAL CONDUCTIVITY Ability to carry an electric current
THERMAL CONDUCTIVITY Ability to transmit heat
Cast Iron vs. Stainless Steel
PLASTIC & COMPOSITES Workbook p. 205 Textbook p. 397
A PLASTIC Is a material made of polymers, to which other substances may be added to obtain certain desirable properties (p. 397)
Polymer Structure
A THERMOPLASTIC Is a plastic that becomes soft enough when heated to be molded or remolded and that hardens enough when cooled to hold its shape
Thermoplastic Products
A THERMOSETTING PLASTIC Is a plastic that remains permanently hard, even when heated
Thermosetting Products
A COMPOSITE Is formed by combining materials from different categories to obtain a material with enhanced properties.
Carbon Fiber
APPENDIX 5 - (p. 530)
Homework Work Book - p. 199-206
Check List Mechanical Properties Lab Deformations Lab Measurements Activity Homework 199-206 Geometric Shape