Open AccessWetting behaviour and reactivity between liquid Gd and ZrO2 substrate
Author(s) -
P. Turalska,
M. Homa,
Grzegorz Bruzda,
N. Sobczak,
I. Kaban,
N. Mattern,
J. Eckert
Publication year - 2017
Publication title -
journal of mining and metallurgy section b metallurgy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 20
eISSN - 2217-7175
pISSN - 1450-5339
DOI - 10.2298/jmmb170815045t
Subject(s) - wetting , sessile drop technique , contact angle , materials science , drop (telecommunication) , scanning electron microscope , substrate (aquarium) , reactivity (psychology) , inert gas , crystallite , composite material , optical microscope , analytical chemistry (journal) , chemical engineering , chemistry , metallurgy , chromatography , medicine , telecommunications , oceanography , alternative medicine , pathology , computer science , engineering , geology
The wetting behavior and reactivity between molten pure Gd and polycrystalline 3YSZ substrate (ZrO2 stabilized with 3 wt% of Y2O3) were experimentally determined by a sessile drop method using a classical contact heating coupled with drop pushing procedure. The test was performed under an inert flowing gas atmosphere (Ar) at two temperatures of 1362 °C and 1412 °C. Immediately after melting (Tm=1341 °C), liquid Gd did not wet the substrate forming a contact angle of θ=141°. The non-wetting to wetting transition (θ < 90°) took place after about 110 seconds of interaction and was accompanied by a sudden decrease in the contact angle value to 67°. Further heating of the couple to 1412 °C did not affect wetting
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