ANALYSIS OF CRYSTALLIZATION OF A SUPERCOOLED MELT BY THE INTEGRAL BALANCE METHOD
Yu. A. Samoilovich, V. I. Timoshpol'skii, and I. A. Trusova UDC 669.041 Using the integral-balance method, the Stefan problem is solved for simply shaped crystals (a prism, a cylinder, and a sphere) grown in a supercooled melt. It is shown that the rate of crystal growth increases with the surface-to-volume ratio (in passage from a prism to a cylinder and a sphere). For all the three shapes of crystals studied the dependence of the speed of motion of the crystallization front on the supercooling is nonlinear and is characterized by a progressive increase. Belarusian State Polytechnic Academy, Minsk, Belarus. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 1, pp. 139-144, January-February, 2001. Original article submitted July 21, 2000. JEPTER7492020018 JEPTER749208