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Highly Purity Synthetic Fused Silica
Mechanical Properties of Fused Quartz
Mechanical Properties ZCQ-K32~33 ZCQ-Z32~34
ZCQ-H32 ZCQ-H34
Density (g/cm3) 2.203 2.201
Modulus of elasticity (MPa) 7.25x104 7.25x104
Poisson’s ratio 0.17 0.17
Compressive strength (MPa) 1150 1150
Tensile strength (MPa) 50 50
Flexural strength (MPa) 67 67
Hardness, Mohs 5.5~6.5 5.5~6.5
Hardness, Knoop 8000~9000 8000~9000
Index of Refraction & Constringence
Chromatic dispersion constant ZCQ-K ZCQ-Z
Vd=(nd – 1)(nF – nC) 67.5±0.6 67.7±0.6
Chromatic dispersion constant（Applicable to Sellmeier equation）
B1 4,76523070x10-1 4,73115591x10-1
B2 6,27786368x10-1 6,31038719x10-1
B3 8,72274404x10-1 9,06404498x10-1
C1 1,18369052x10-2 1,29957170x10-2
C2 2,84888095x10-3 4,12809220x10-3
C3 9,56856012x10-1 9,87685322x10-1
Electrical Properties
Dielectric constant (ε) 0-106Hz 3x1010Hz
3.7 3.81
Dielectric intensity ( kV/cm) 20°C 500°C
250-400 40-50
Dielectric loss angle (tg δ) 1KHz 1MHz-109Hz 3x1010Hz
< 5x10-4 < 1x10-4 < 4x10-4
Electric resistivit (Ω·cm) 20°C 100°C 400°C
1x1018 1x1016 1x1010
Electric resistivit (Ω·cm) 800°C 1000°C 1200°C
6.3x106 1x106 1.3x105
Highly Purity Synthetic Fused Silica is available with 4 series