Structure and property Flashcards
What is a composite?
A combination of 2 materials possessing a function which would not if one were acting alone
What is the function of the coupling agent?
Bonds the filler to the resin giving it better properties
Why do you need to know about the materials?
Effective dialogue
Problem solving
Effective use
What does the Medical Devices Directives request ?
Patients name and conformation of use
Prescribers name
Technicians name and address
Appliance description
What can the pH fluctuate in the mouth between?
2-12
What is tensile force?
Pulling force
What units is strain in?
None- it’s a ratio
What units is stress in?
MPa
What force is compressive?
Crushing
What force is diametral tensile?
Compression which results in pulling
What is a flexural force?
3 point
What does ductility mean?
Ability to be stretched out
What is the toughness of a material?
The energy absorbed potential before fracture
What is adhesive failure?
Material A and B separate
What is cohesive failure?
Material A and B stay together but B falls apart
