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Wetting Angle and Surface Tension of Germanium Melts on Different Substrate Materials by N. Kaiser; A. Cröll; F.R. Szofran; S.D. Cobb; K.W. Benz is a Engineering article available to read on EtoBox.

What is Wetting Angle and Surface Tension of Germanium Melts on Different Substrate Materials about?

The sessile drop technique has been used to measure the wetting angle and the surface tension of molten germanium (Ge) on various substrate materials. Sapphire, fused silica, glassy carbon, graphite, SiC, carbon-based aerogel, pyrolytic boron nitride (pBN), AlN, Si 3 N 4 , and CVD diamond were used as substrate materials. In addition, the effects of different cleaning procedures and surface treatments on the wetting behavior were investigated. The highest wetting angles with values around 1701 were found for pBN substrates under active vacuum or with a slight overpressure of 5 N argon or forming gas (2% hydrogen in 5 N argon). The measurement of the surface tension and its temperature dependence for Ge under a forming gas atmosphere resulted in gðTÞ 1⁄4 591 À 0:08 (T À T m )[10 À3 N/m].

Who reads Wetting Angle and Surface Tension of Germanium Melts on Different Substrate Materials?

Author

N. Kaiser; A. Cröll; F.R. Szofran; S.D. Cobb; K.W. Benz

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-0248)

Published

2001

Language

EN

Field

Engineering (Physical Sciences)