Properties Dielectric constant Chemical durability

Properties Dielectric constant Chemical durability

AGC's aluminosilicate glass for chemical strengthening
Properties
Properties
Dragontrail
Sodalime
Density [g/cm3]
2.48 2.50 g
[
]
Young's Modulus [GPa]
74
73
Shear Modulus [GPa]
30
30
Poisson’s Ratio
0.23
0.21
Vickers hardness (before CS)
595
533
Vickers hardness (after CS)
673
580
‐7
(
g
)) [deg.]
[ g]
CTE(50‐350deg.x10
98
85
Tg [deg.]
604
550
Softening Point [deg.]
831
733
Annealing Point [deg.]
606
554
Strain Point [deg.]
556
511
( )
Refraction Index (Nd)
1.51
1.52
Photoelastic constant [nm/cm MPa]
28.3
25.6
Volume Resistivity [Ω･cm]
8.4
8.5
Mechanical property
Thermal property
Optical property
Electrical property
Dielectric constant
Frequency
Dielectric constant
[Hz]
Chemical durability
Loss tangent
1M
7.3
0.032 10M
7.3
0.032 54M
7.1
0.028 490M
7.0
0.029 912M
7.0
0.030 Chemical reagent
HCL
NaOH
HF
BHF
0.1mol/l for 20hrs.
0.1mol/l
90o for 20hrs.
5% 25o for 20min.
for 20min
1:9
25o for 20min.
90o
Etching amount
Weight loss
h l
h
[mg/cm2]
[um/cm2]
0.03 0.01 0.56 0.14 11.76 2.92 0.98 0.24 AGC's aluminosilicate glass for chemical strengthening
90
80
70
Chemical strengthening
capability
p
y
DO
OL [um]
60
50
Dragontrail
40
30
20
Sodalime
10
0
450
Transmittance of Dragontrail (0.7mmt)
Transmitttance[%]
95
90
85
80
75
70
200
400
600
800
1000 1200 1400 1600
500
Cumulative fractu
ure probability ratio
400
550
600
650 700
CS [MPa]
750
800
850
Bending strength
2.0 1.0 Dragontrail
Sodalime
0.0 ‐1
1.0 0
‐2.0 ‐3.0 ‐4.0 Failure Stress[MPa]
Wavelength[nm]
Scratch visibility
Sodalime
Dragontrail
Asahi Glass Co., Ltd.
AGC Electronics
1‐5‐1, Marunouchi, Chiyoda‐ku,
Tokyo 100 8405 JAPAN
Tokyo 100‐8405 JAPAN
Scratched by diamond tip
Tip size: R=50um
Scratching speed: 2mm/sec
Copyright(c) Asahi Glass Co., Ltd.
All rights reserved
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