[FIGURE 2 OMITTED]The modelLet us c

[FIGURE 2 OMITTED]

The model

Let us consider a closed isothermal system in which an n-component SC is crystallized from an m-component undercooled melt (n [less than or equal to] m); please see Fig. 2. The solid S ([[OMEGA].sub.S]) and the liquid L ([[OMEGA].sub.L]) are separated by a curved S/L interface ([partial derivative][[OMEGA].sub.S/L]). The growth velocity of the interface is [V.sub.n] with n as the normal vector. For simplicity, the partial molar volumes of all the components in the solid and in the liquid are assumed to be equal ([V.sub.m]). If the local Gibbs energy of the bulk phases is denoted as [g.sub.k] (k = S or L) and the interface energy is a constant [sigma], the total Gibbs energy of the system G can be expressed as:

Hasil (Bahasa Indonesia) 1:

[GAMBAR 2 DIHILANGKAN]ModelMari kita mempertimbangkan isotermal sistem tertutup di mana n-komponen SC mengkristal dari m-komponen undercooled mencair (n [kurang dari atau sama dengan] m); Silakan lihat Fig. 2. S padat ([[OMEGA] .sub. S]) dan cairan L ([[OMEGA] .sub. L]) dipisahkan oleh antarmuka S/L yang melengkung ([turunan parsial] [[OMEGA] .sub. S/L]). Kecepatan pertumbuhan antarmuka adalah [V.sub.n] dengan n sebagai vektor normal. Untuk kesederhanaan, volume molar parsial semua komponen dalam padat dan cair diasumsikan sama ([V.sub.m]). Jika energi Gibbs lokal fase massal dilambangkan sebagai [g.sub.k] (k = S atau L) dan antarmuka energi konstan [sigma], total Gibbs energi sistem G dapat dinyatakan sebagai: