TMA Propertoes

TMA Propertoes - 570-580 Viscosity = F/[4 D v ] Where F =...

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Material Elastic Modulus (GPa) CTE (mm/m°C) Linear from 20-500°C Borosilicate glass 1.4 70 3.3 to 5 Glass 2,5 70 11 Titanium 3 116 8.3 to 8.5 Kovar 1 159 5.1- to 5.5 Borosilicate Glass Properties 4 Temperature Transformation temperature T g 525 °C Temperature of the Glass at viscosity η in dPa x s: 10 13 (annealing point) 560 °C 10 7.6 (softening point) 825 °C 10 4 (working point) 1260 °C Other Glass Properties 2 Temperature Transformation temperature T g 528 °C 10 7.6 (softening point)
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Unformatted text preview: 570-580 Viscosity = F/[4 D v ] Where F = force D = diameter of probe and v = penetration velocity. 6 Sources: 1 Technical Data from cartech.com (Carpenter holds the rights to Kovar, sells borosilicate glass) 2 Based on our data. 3 Journal of the American Ceramic Society, 74 (8) pp 1803 (2005) 4 Data sheet from Schott Glass, Duran brand us.schott.com 5 Elastic Modulus for a common glass 6 Polymer Engineering And Science 31 (1) pp101 (1997)...
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This note was uploaded on 03/02/2010 for the course ITAL 102 taught by Professor Hill during the Spring '10 term at Zane State.

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