Chemical reaction-limited spreading: the triple line velocity versus contact angle relation.
Résumé
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 std. wetting expts. and expts. which sep. 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.