Materials: Modern Materials

Modern Materials

Modern materials are continually evolving with technological advancements. They are developed through new or improved processes, often involving man-made materials or human intervention.

• Modern materials are distinct from 'smart materials' because they do not react to external changes.

Classification of Modern Materials

Kevlar

• Features: Aramid fibers known for high cut and heat resistance.
• Uses:
  • Body armor
  • Cut-proof gloves and aprons
  • Aerospace applications
  • Surfboard components
  • Puncture-resistant bicycle tires

Precious Metal Clay (PMC)

• Features:
  • Clay-consistency material composed of fine metal particles.
  • Behaves like ceramic clay; easily moldable, shapeable, and formable.
  • Hardens upon firing with a kiln or butane torch.
  • Inexpensive compared to solid metals like silver.
• Uses:
  • Jewelry
  • Decorative items
  • Small sculptures
  • Fobs

High-Density Modeling Foam

• Features:
  • Polyurethane closed-cell foam blocks or sheets.
  • Lightweight and easy to work with using traditional woodworking tools or CNC milling/routing.
  • Sands easily, enabling the creation of intricate shapes and forms.
• Uses:
  • 3D modeling
  • Prototypes

Polymorph

• Features:
  • Granules that become moldable at approximately 60^\circ C.
  • Can be heated in water or with a hair dryer.
  • Solidifies at room temperature.
  • Also available in liquid form; liquid at room temperature and solidifies at 2^\circ C.
• Uses:
  • Modeling
  • Shaping ergonomic handles
  • Prototyping mechanical parts