SCHOTT Technical Glasses
Apart from its application in optics, glass as a technical material has exerted a formative influence on the development of important technological fields such as chemistry, pharmaceutics, automotive, optics, optoelectronics and information technology. SCHOTT Technical Glasses offers pertinent information in concise form. It contains general information for the determination and evaluation of important glass properties and also informs about specific chemical and physical characteristics and possible applications of the commercial technical glasses produced by SCHOTT. With this brochure, we hope to assist scientists, engineers, and designers in making the appropriate choice and make optimum use of SCHOTT products.
Apart from its application in optics, glass as a technical material has exerted a formative influence on the development of important technological fields such as chemistry, pharmaceutics, automotive, optics, optoelectronics and information technology. SCHOTT Technical Glasses offers pertinent information in concise form. It contains general information for the determination and evaluation of important glass properties and also informs about specific chemical and physical characteristics and possible applications of the commercial technical glasses produced by SCHOTT. With this brochure, we hope to assist scientists, engineers, and designers in making the appropriate choice and make optimum use of SCHOTT products.
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55<br />
aggressive environments (e.g. acids, alkaline solutions) only<br />
for a limited time.<br />
Deliverable forms and shapes<br />
Solder glass can be supplied in the form of powder, granulate<br />
and sintered preforms (e.g. rings, rods, …), and as paste.<br />
An example of a glass-to-metal seal application is shown on<br />
page 50, Table 13.<br />
Glass no. α (20/300) T g Sealing temperature Density t k100 tanδ<br />
[10 –6 x K –1 ] [°C] [°C] [min] [g/cm 3 ] [°C] [10 –4 ]<br />
Lead-containing<br />
G017-002 3.7 545 700 15 3.6 – 37<br />
G017-339 4.7 325 510 15 4.3 11.5 19<br />
G017-712 5.3 375 510 10 – – –<br />
G017-393 6.5 320 425 15 4.8 11.6 15<br />
G017-340 7.0 315 420 15 4.8 13.4 14<br />
G018-228 7.6 311 400 15 5.0 – –<br />
8465 8.2 385 520 60 5.4 14.9 27<br />
G018-229 8.7 310 410 15 5.4 – –<br />
G018-256 9.6 316 420 15 5.8 – –<br />
G017-052 11.7 308 410 15 6.7 – –<br />
t holding<br />
Lead-free<br />
G018-250 7.0 380 510 15 5.7 – –<br />
G018-255 9.4 396 520 15 6.7 – –<br />
8470 10.0 440 680 60 2.8 – –<br />
G018-249 10.1 365 500 15 7.1 – –<br />
Other matched CTE available upon customer request<br />
All solder glasses are available as K3 powder. Grain size: d 50 = 10 ± α µm , d 99 ≤ 63 µm<br />
Other grain sizes available upon request<br />
9<br />
Table 16. <strong>SCHOTT</strong> solder glasses
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