Yttrium - History, Occurrence, Properties and Applications

Material: Yttrium - History, Occurrence, Properties and Applications
Composition: 99.0-99.9%Y typically
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.0198 0.02 m3/kmol 1208.27 1220.47 in3/kmol
Density 4.4 4.55 Mg/m3 274.683 284.047 lb/ft3
Energy Content 100 800 MJ/kg 10833.9 86670.9 kcal/lb
Bulk Modulus 35 39 GPa 5.07632 5.65647 106 psi
Compressive Strength 50 415 MPa 7.25189 60.1907 ksi
Ductility 0.02 0.15 0.02 0.15 NULL
Elastic Limit 50 415 MPa 7.25189 60.1907 ksi
Endurance Limit 45 255 MPa 6.52669 36.9846 ksi
Fracture Toughness 40 100 MPa.m1/2 36.4019 91.0047 ksi.in1/2
Hardness 300 1500 MPa 43.5113 217.557 ksi
Loss Coefficient 0.0008 0.0075 0.0008 0.0075 NULL
Modulus of Rupture 50 415 MPa 7.25189 60.1907 ksi
Poisson's Ratio 0.26 0.27 0.26 0.27 NULL
Shear Modulus 25 26 GPa 3.62594 3.77098 106 psi
Tensile Strength 115 505 MPa 16.6793 73.2441 ksi
Young's Modulus 64 68 GPa 9.28241 9.86256 106 psi
Glass Temperature K °F
Latent Heat of Fusion 185 200 kJ/kg 79.5353 85.9841 BTU/lb
Maximum Service Temperature 540 660 K 512.33 728.33 °F
Melting Point 1790 1796 K 2762.33 2773.13 °F
Minimum Service Temperature 0 K -459.67 °F
Specific Heat 285 310 J/kg.K 0.22055 0.239896 BTU/lb.F
Thermal Conductivity 16 17.2 W/m.K 29.9525 32.199 BTU.ft/h.ft2.F
Thermal Expansion 10 11.5 10-6/K 18 20.7 10-6/°F
Breakdown Potential MV/m V/mil
Dielectric Constant NULL
Resistivity 57 60 10-8 ohm.m 57 60 10-8 ohm.m
Environmental Properties
  Resistance Factors
1=Poor 5=Excellent
Flammability 2
Fresh Water 3
Organic Solvents 5
Oxidation at 500C 1
Sea Water 3
Strong Acid 1
Strong Alkalis 1
UV 5
Wear 3
Weak Acid 2
Weak Alkalis 2