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Իꡤź곪ƮźĮ ðϿ Ų ü Īμ ڹ (Ѧ) ϰ, ǿ κ ̻ȭԼ(SiO) ȭĮ(CaO) ȭƮ(NaO) ּ ϴ (Ѧ) մϴ. Ҵټȸ(Sodalime)(Quartz) з , ³, Square type Glass waferԴϴ.
 

Pyrex (BoroFloat33)


Density()

@25°C

2.22 g/cm3

Young's Modulus (E)

@25°C

63 GPa

Knoop Hardness (HK 0.1/2.0)

per ISO 9385

480

Poisson's Ratio ()

 

0.20

Bending Strength

per DIN 52292

25 N/mm2




 

Dielectric Constant ()

1 Mhz @ 25°C

4.6

Dielectric Loss Factor (tan )

1 Mhz @ 25°C

37 x 10-4

Dieletric Strength ()

23°C
149°C
160°C

16kV/mm
7kV/mm
1.8kV/mm

Volume Resistivity (log )

250°C
350°C

8.0
6.5



ȭ
 

Common Reactants

Weight Loss mg/cm2

0.02 n NaOH, 6 hr @ 95° C

0.16

0.02 n H2SO4, 24 hr @ 95° C

< 0.01

H2O, 24 hr @ 95° C

< 0.01

5% NaOH, 6 hr @ 95° C

1.1

5% HCl, 24 hr @ 95° C

< 0.01

0.02 Na2CO3, 6 hr @ 95° C

0.16

10% HF, 20 min @ 23° C

1.1

10% NH4F*HF, 20 min @ 23° C

0.14




Sodalime
 

 

Sodalime

Thermal Expansion(0~300)X10-7 cm/cm/

93.5

Strain Point,

473

Annealing Point,

514

Softening Point,

696

Density, g/cc

2.47

Young's Modulus, X1010Pa

7.03

Young's Modulus, X106Psi

10.20

Poisson's Ratio

0.220

Volume Resistivity ohm.cm 250

6.40

Dielectric Constant1Mhz, 20

7.200

Loss Tangent %

0.900

Refractive index, 589.3nm

1.510


Glass Name

Working Temp

Max Temp

Thermalshock Resistmc

Normal Sodalime Glass

220

250

170

Pyrex

430

490

304