• 導電膠用玻璃粉 1
  • 導電膠用玻璃粉

導電膠用玻璃粉

產品說明

Powder Glass for Coating and Binding

Powder glass is used to coat a wide variety of substrates and elements. Please make your selection using the expansion coefficient and softening point as a guide.

Powder glass is also used as a binder for thick film paste and ceramic chip devices. Please make your selection using glass type and softening point as a guide.

Properties/Glass Code GA-1 GA-4 GA-8 GA-9 GA-11 GA-12 GA-13 GA-21 GA-34 *
Thermal expansion coefficient ×10-7/K 60 63 81 90 88 73 66 83 45
Density ×103Kg/m3 4.03 2.70 5.38 5.77 3.62 2.95 3.04 5.74 3.93
Transformation point ℃ 445 475 400 360 530 460 660 375 535
Deformation point ℃ 505 545 430 385 560 505 715 402 560
Softening point ℃ 595 625 490 430 700 560 850 450 635
Dielectric constant 1MHz,25℃   8.8 6.2 11.7 14.7 8.5 6.7 7.2 － －
tan δ 1MHz,25℃ ×10-4 12 20 26 17 9 17 15 － －
Volume resistivity Log ρ 250℃ Ω•cm 13.1 10.8 12.2 11.3 12.6 10.4 14.1 － －
350℃ Ω•cm 11.0 8.0 9.5 － 10.0 8.3 12.0 － －
Main composition
(Glass type)		 PbO•
B2O3•
SiO2 		Na2O•
B2O3•
SiO2		 PbO•
B2O3•
SiO2		 PbO•
B2O3•
SiO2		 PbO•
BaO•
SiO2		 Na2O•
ZnO•
B2O3		 CaO•
BaO•
SiO2		 PbO•
B2O3•
SiO2		 PbO•ZnO• B2O3•SiO2
(devitrifiable)
Color White,Black White White White White White White White Pale Purple
 
 Properties/Glass Code GA-44 GA-47 GA-50 GA-55 GA-59 GA-60 LS-
0500 		SM-
36A 		BG-
0600
Thermal expansion coefficient ×10-7/K 117 37 24 87 38 96 83 36 109.5
Density ×103kg/m3 3.02 2.36 2.15 4.54 3.80 2.88 3.06 3.93 6.96
Transformation point ℃ 630 645 495 700 550 640 495 535 357
Deformation point ℃ － 715 600 730 － － 535 － 368
Softening point ℃ － － 825 － 645 － 585 635 433
Dielectric constant 1MHz,25℃   8.5 5.2 4.1 26.0 － 7.2 7.6 － 23.7
tan δ 1MHz,25℃ ×10-4 40 8 20 25 － 35 138 － 24
Volume resisivity Log ρ 250℃ Ω•cm － － 12.4 － － － 9.2 － 9.3
350℃ Ω•cm － － － － － － 7.4 － 7.4
Main composition (Glass type) MgO•
B2O3•
SiO2 (devitrifiable)		 Al2O3•
B2O3•
SiO2		 B2O‧
SiO2		 Nd2O5•
TiO2•
SiO2		 ZnO•
B2O3•
SiO2 (devitrifiable)		 MgO•
B2O3•
SiO2 (devitrifiable)		 Na2O•
B2O3•
SiO2		 PbO•
ZnO•
B2O3•
SiO2		 Bi2O3•
B2O3
Color White White White Pale Green Pale Purple White White Pale Purple Green  
 
  • We recommend GA-59 as a Pb-free alternative for GA-34 (low expansion type glass).
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