CAJ | 학술논문

采用大功率超声处理设备对微米级TiN颗粒进行了以亚微米级破碎为目的的研究。较系统地研究了超声功率、处理时间、颗粒含量、液体体积对TiN颗粒破碎动力学过程的影响，分析了超声空化效应和颗粒之间的碰撞对TiN破碎的影响及破碎极限。结果表明，超声处理可以对水中的 TiN颗粒进行有效破碎及弥散，能将平均粒径为264μm的TiN颗粒（2～700μm）减小至20μm（0．2～80μm）；随着超声作用时间的延长，粒度分布曲线逐渐往小粒径方向移动，会生成大量的弥散分布的小于1μm的接近200 nm的TiN颗粒。
채용대공솔초성처리설비대미미급TiN과립진행료이아미미급파쇄위목적적연구。교계통지연구료초성공솔、처리시간、과립함량、액체체적대TiN과립파쇄동역학과정적영향，분석료초성공화효응화과립지간적팽당대TiN파쇄적영향급파쇄겁한。결과표명，초성처리가이대수중적 TiN과립진행유효파쇄급미산，능장평균립경위264μm적TiN과립（2～700μm）감소지20μm（0．2～80μm）；수착초성작용시간적연장，립도분포곡선축점왕소립경방향이동，회생성대량적미산분포적소우1μm적접근200 nm적TiN과립。
A high power ultrasonic treatment equipment was used for the breakage of large size TiN particles in liquid at microscale into sub-micron particles . The effects of ultrasonic power , treatment time , solids concentration and liquid volume on the kinetics of comminution process of TiN were studied .The additional cavitation effect and particle collisions on the influence of the comminution process were also analyzed .The results show that ultrasonic treatment modifies both the particle size of TiN and its dispersion .TiN as received with mean particle size 263μm(2 ~ 700μm) was reduced to the mean particle size of 20μm (0 .2 ~ 80 μm);a number of sub-micro TiN fragments were also produced and dispersed with prolonged ultrasonic treatment .