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通过建立中空颗粒进入熔液的热力学和动力学模型,分析了中空颗粒进入熔液的润湿角、临界尺寸等参数。研究表明,中空颗粒不需外力,自发进入熔液的临界尺寸R与ρ_s、ρ_1、θ有关,当颗粒半径大于临界尺寸,颗粒能自发进入熔液中。当ρ_s、ρ_1一定时,随着润湿角的增加,自发进入熔液临界尺寸R也增加;当ρ_s、ρ_1、θ一定时,所需的外力与R有关,颗粒临界半径越小,颗粒进入熔液中所需的外力越小。
By establishing the thermodynamic and kinetic model of the hollow particles into the melt, the parameters such as the wetting angle and the critical dimension of the hollow particles entering the melt are analyzed. The results show that the hollow particles do not need external force, and the critical size R of spontaneous liquid entering the melt is related to ρ_s, ρ_1, θ. When the particle radius is larger than the critical size, the particles spontaneously enter the melt. When ρ_s, ρ_1 is constant, as the wetting angle increases, the critical dimension R of spontaneous entry into the melt also increases. When ρ_s, ρ_1, and θ are constant, the required external force is related to R, and the smaller the critical radius of the particles, The smaller the force required in the melt.