UV fused silica microscope slides

scope

standard grade

Precision

Ultra Precision

Dimensional tolerance

+/-0.1

+/-0.1

+/-0.1

Clear aperture

>80% to >90%

>80% to >90%

>80% to >90%

Surface Quality

80-50

60-40

40-20

Parallelism

3 arc minutes

1 arc minute

30 arc seconds

wavefront distortion

5λ per 25mm

1λ/25mm

λ/4

protective bevel

<0.25x45 degrees

<0.25x45 degrees

<0.25x45 degrees

coating

Elective

Elective

Elective

size

depends on material

thickness

depends on material

name

Unit × 10-4%

Al

iron

calcium

magnesium

righteous

copper

manganese

you

lead

tin

chromium

Second

Potassium

sodium

plum

Oh

Fused Silica

16

0.92

1.5

0.4

1.0

0.01

0.05

<0.3

<0.3

<0.3

<0.3

0.2

1.49

1.67

<0.3

400

synthetic fusion

silica

0.37

0.31

0.27

0.04

0.03

0.03

0.01

<0.03

<0.03

<0.03

<0.03

0.02

0.5

0.5

<0.3

1200

infrared optics

quartz

35

1.45

2.68

1.32

1.06

0.22

0.07

<0.03

<0.03

<0.03

<0.03

0.3

2.2

3

<0.3

5

Mechanical behavior

Reference

Mechanical behavior

Reference

density

2.203 g/cm3

Refractive index

1.45845

Compressive strength

>1100Mpa

Thermal expansion coefficient

5.5×10^-7cm/cm.°C

Bending strength

67Mpa

Hot working temperature

1750~2050℃

tensile strength

48.3Mpa

short temperature

1300°C

Poisson's ratio

0.14~0.17

prolonged temperature

1100°C

Elastic Modulus

71700Mpa

Resistivity

7×107Ω.cm

Shear modulus

31000Mpa

Dielectric strength

250~400Kv/cm

Moth hardness

5.3~6.5

(moth scales)

Dielectric constant

3.7~3.9

inflection point

1280°C

Dielectric absorption coefficient

4×10⁴

Specific heat (20~350°C)

670 J/kg°C

Dielectric Loss Coefficient

1×10⁴

Thermal conductivity (20°C)

1.4W/m°C

Typical Mechanical Properties of Fused Silica