Fundamentals of Materials Science and Engineering: An Integrated Approach, 3e

GTBL042-App-B GTBL042-Callister-v3 September 21, 2007 20:24

Appendix B / Properties of Selected Engineering Materials • 817

Table B.6 (Continued)

Coefficient of

Thermal Expansion

Material 10 −^6 (◦C)−^110 −^6 (◦F)−^1

GRAPHITE, CERAMICS, AND SEMICONDUCTING MATERIALS

Aluminum oxide

• 99.9% pure 7.4 4.1


• 96% pure 7.4 4.1


• 90% pure 7.0 3.9
  Concrete 10.0–13.6 5.6–7.6
  Diamond (natural) 0.11–1.23 0.06–0.68
  Gallium arsenide 5.9 3.3
  Glass, borosilicate (Pyrex) 3.3 1.8
  Glass, soda–lime 9.0 5.0
  Glass ceramic (Pyroceram) 6.5 3.6
  Graphite


• Extruded 2.0–2.7 1.1–1.5


• Isostatically molded 2.2–6.0 1.2–3.3
  Silica, fused 0.4 0.22
  Silicon 2.5 1.4
  Silicon carbide


• Hot pressed 4.6 2.6


• Sintered 4.1 2.3
  Silicon nitride


• Hot pressed 2.7 1.5


• Reaction bonded 3.1 1.7


• Sintered 3.1 1.7
  Zirconia, 3 mol% Y 2 O 3 9.6 5.3
  POLYMERS
  Elastomers


• Butadiene-acrylonitrile (nitrile) 235 130


• Styrene-butadiene (SBR) 220 125


• Silicone 270 150
  Epoxy 81–117 45–65
  Nylon 6,6 144 80
  Phenolic 122 68
  Poly(butylene terephthalate) (PBT) 108–171 60–95
  Polycarbonate (PC) 122 68
  Polyester (thermoset) 100–180 55–100
  Polyetheretherketone (PEEK) 72–85 40–47
  Polyethylene


• Low density (LDPE) 180–400 100–220


• High density (HDPE) 106–198 59–110


• Ultrahigh molecular weight 234–360 130–200
  (UHMWPE)
  Poly(ethylene terephthalate) (PET) 117 65
  Poly(methyl methacrylate) (PMMA) 90–162 50–90
  Polypropylene (PP) 146–180 81–100
  Polystyrene (PS) 90–150 50–83
  Polytetrafluoroethylene (PTFE) 126–216 70–120
  Poly(vinyl chloride) (PVC) 90–180 50–100