山东科学 ›› 2026, Vol. 39 ›› Issue (2): 108-112.doi: 10.3976/j.issn.1002-4026.2025180

• 先进材料制备与加工技术 • 上一篇    

凝胶注模成型ITO靶材坯体的开裂抑制研究

张力文()   

  1. 西安航空职业技术学院, 陕西 西安 710089
  • 收稿日期:2025-12-09 修回日期:2026-03-12 出版日期:2026-04-20 上线日期:2026-04-03
  • 作者简介:张力文(1989—),男,博士,副教授,研究方向:ITO靶材制备,E-mail: zlw931988@163.com

Investigation of cracking suppression in ITO target green bodies prepared by gel-casting

ZHANG Liwen()   

  1. Xi’an Aeronautical Polytechnic Institute, Xi’an 710089, China
  • Received:2025-12-09 Revised:2026-03-12 Published:2026-04-20 Online:2026-04-03

摘要:

氧化铟锡(ITO)靶材是制备透明导电薄膜的关键材料,其成型质量直接影响最终性能。传统成型方法在制备高密度、大尺寸坯体时易出现裂纹、密度不均等问题。凝胶注模成型技术因具有高固含量浆料原位固化、坯体强度高、结构均匀等优势,适用于高性能ITO靶材的制备。然而,甲基丙烯酰胺(MAM)体系在干燥过程中易发生开裂。为此,本研究系统探讨了单体/交联剂配比、浆料固含量与凝胶化温度对坯体成型质量的影响。结果表明,当单体质量分数1%、单体/交联剂比例为20、固体质量分数为80%、凝胶化温度为55~65 ℃时,可获得结构均匀、无裂纹的ITO靶材坯体。本研究为高性能ITO靶材的凝胶注模成型提供了可靠的工艺优化方案。

关键词: 胶态成型, ITO靶材坯体, 单体, 交联剂

Abstract:

Indium tin oxide (ITO) targets are crucial for depositing transparent conductive films, yet their fabrication often faces challenges such as cracking and density inhomogeneity, especially in large-sized green bodies. Gel-casting technology, with its advantages of in-situ solidification of high-solid-content slurries, high green body strength, and uniform structure, is suitable for the preparation of high-performance ITO targets. However, cracking during drying remains a critical issue in the methacrylamide (MAM) system. The effects of monomer/crosslinker ratio, slurry solid loading, and gelation temperature on the cracking behavior of ITO green bodies are systematically investigated. The results indicate that crack-free ITO green bodies with uniform microstructure can be achieved under the optimized conditions: monomer content of 1%, monomer/crosslinker ratio of 20, solid loading of 80%, and gelation temperature between 55 ℃ and 65 °C. This work provides a reliable gel-casting strategy for fabricating high-quality ITO targets.

Key words: gel-casting, ITO green body, monomer, cross-linker

中图分类号: 

  • TQ174.7

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