高纯镓颗粒的制备及其成形合格率的研究  

Preparation of High-purity Gallium Particles and Study on Their Molding Pass Rate

作　　者：彭伟校 王晶 徐成 吴广杰 李清宇 耿思宇 李恋 李明吉 PENG Weixiao;WANG Jing;XU Cheng;WU Guangjie;LI Qingyu;GENG Siyu;LI Lian;LI Mingji(Vital Micro-Electronics Technology Co.,Ltd.,Guangdong Qingyuan 511517;National Engineering&Technology Research Center of Scattered Metals,First Rare Materials Co.,Ltd.,Guangdong Qingyuan 511517,China)

机构地区：[1]广东先导微电子科技有限公司,广东清远511517 [2]国家稀散金属工程技术研究中心,广东先导稀材股份有限公司,广东清远511517

出　　处：《广州化工》2024年第19期80-84,共5页GuangZhou Chemical Industry

摘　　要：以不同纯度的液态高纯Ga为原料,采用液滴凝固法制备了高纯Ga颗粒。使用DSC表征了不同纯度的液态Ga在降温过程中的热流变化。通过调节冷却温度、聚四氟坩埚孔径大小以及纯度研究了高纯Ga颗粒的成形合格率。研究发现:相同纯度和尺寸大小的Ga颗粒,冷却温度降低,成形合格率升高;在相同冷却温度下,纯度增加,成形合格率下降;孔径增大,成形合格率也减小。研究表明:冷却温度是制备高合格率Ga颗粒的关键因素,调节适当的冷却温度能够有望高效、低成本制备不同粒径和纯度的高纯Ga颗粒。High-purity Ga particles were prepared by droplet solidification method using liquid high-purity Ga of different purities as raw materials.The heat flow changes of liquid Ga with different purities during the cooling process were characterized using DSC.The molding compliance of high-purity Ga particles was investigated by adjusting the cooling temperature,the aperture size of polytetrafluoro crucible and the purity.It was found that for Ga particles of the same purity and size,the molding pass rate increased when the cooling temperature decreased,the molding pass rate decreased when the purity increased at the same cooling temperature,and the molding pass rate decreased when the pore size increased.Research showed that the cooling temperature was the key factor for the preparation of Ga particles with h igh qualification rate,and the adjustment of the appropriate cooling temperature could be expected to efficiently and cost-effectively prepare high-purity Ga particles with different particle sizes and purities.

关 键 词：高纯镓 液滴凝固法 冷却温度 纯度 孔径 合格率 

分 类 号：TF843.1[冶金工程—有色金属冶金]