Chemical reaction-limited spreading: the triple line velocity versus contact angle relation

摘要

The mechanisms of reaction-limited spreading of molten copper and nickel silicides on carbon substrates are studied by the dispensed drop variant of the sessile drop technique under high vacuum. Both standard wetting experiments and experiments which separate the effect of time and instantaneous contact angle on spreading rate are carried out. Equations are derived for the time-dependent variation of contact angle and spreading rate.