Smart and Modern Materials Flashcards
What defines a smart material?
A smart material is defined as a material whose physical properties change in response to an input.
How do smart materials react to their environment?
Smart materials react to external stimuli or changes in the environment without human intervention.
What is Hydrochromic Ink?
Hydrochromic Ink changes colour with water.
What does Thermochromic Pigment/Paint do?
Thermochromic Pigment/Paint changes colour with heat.
What is the function of Photochromic Material/Dye?
Photochromic Material/Dye changes colour with light.
What is a Shape Memory Alloy (SMA)?
A Shape Memory Alloy changes shape with heat.
What is the characteristic of Phosphorescent Material?
Phosphorescent Material glows in the dark.
What does Quantum Tunnelling Composite (QTC) do?
QTC is a soft electrical switch that allows an electrical current to flow when compressed.
What is Polymorph?
Polymorph is a thermoplastic used for prototyping that can be reheated and reused.
Hydrochromic paint is used in which Apple product feature?
Hydrochromic paint is added to the charger socket of the Apple iPhone to detect water damage.
What is the application of Phosphorescent Materials?
Phosphorescent Materials are used for safety lighting, signage, and glow-in-the-dark products.
What do Thermochromic paints react to?
Thermochromic paints react to heat.
What is a Modern Material?
Modern materials are technical materials manufactured for function.
What is Graphene known for?
Graphene is stronger than steel, flexible, and conducts heat and electricity.
What are the properties of Titanium?
Titanium is strong relative to its weight and is anti-corrosive.
What are Metal foams?
Metal foams are strong, lightweight, electrically and thermally conductive materials.
Define Nanomaterials.
Nanomaterials are materials that are between 1 and 100 nanometres in size.
What is the function of Fibre Optics?
Fibre Optics are strands of pure glass designed to transmit signals.
What are Corn Starch Polymers?
Corn Starch Polymers are compostable plastics that are biodegradable.
What is the significance of titanium in medical applications?
Pure titanium does not react to medical procedures and is used in artificial joints and dental implants.
How do Shape Memory Alloys work?
Shape Memory Alloys change shape easily and return to their original shape when heated.
What are the typical uses of Nanomaterials?
Nanomaterials are used in car manufacturing, insulation, lighting systems, and as coatings on computer chips.
What is the structure of Graphene?
Graphene is a 2D honeycomb lattice carbon structure that is one atom thick.
How are Metal foams produced?
Metal foams are made by injecting gas into liquid metal.
True or False: Thermochromic pigments enhance the safety of products.
True
