期刊
CERAMICS INTERNATIONAL
卷 47, 期 21, 页码 30531-30535出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2021.07.231
关键词
Aerosol deposition; Scratch resistant glass
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT Future Planning [NRF-2019R1A2C1006972, NRF-2020R1A2C2010984, NRF-2021R1A4A1031357]
- Technology Innovation Program - Ministry of Trade, industry & Energy (MI, Korea) [20010610]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20010610] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
By depositing Al2O3 thin film on Gorilla Glass using an aerosol deposition method, the mechanical properties of the cover glass for mobile electronic devices can be greatly improved. The Al2O3 film exhibits high light transmittance, increased bending strength, and higher hardness compared to Gorilla Glass, making it suitable for use in various display products.
Al2O3 thin film was deposited on Gorilla glass using an aerosol deposition method to improve the mechanical property of cover glass for mobile electronic device. The deposited Al2O3 film (approximately 1 mu m thick) was a polycrystalline structure and showed a high light transmittance of approximately 90% in the visible light region. The CIE color space (L*a*b) measurement also showed a characteristic corresponding to the acceptable optical range of the cover glass. Further, it was confirmed that the bending strength improved by 10 %, as compared with bare Gorilla glass (from 6970 kgf/cm2 to 7704 kgf/cm2), and the Vickers hardness increased to approximately 1700-2000 HV, as compared with that of Gorilla glass (<700 HV). Owing to the improved mechanical properties, the Al2O3 thin film exhibited good anti-scratch properties and is expected to be applied to the cover glass of various display products.
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