Invar合金是制备精细金属掩模板(Fine Metal Mask,简称FMM)的重要基材,其纯净度直接影响FMM的质量以及有机发光二极管(Organic Light EmittingDiode,简称OLED)技术的发展水平。首先概述了FMM的主要制备技术,介绍了对FMM基材Invar合金的...Invar合金是制备精细金属掩模板(Fine Metal Mask,简称FMM)的重要基材,其纯净度直接影响FMM的质量以及有机发光二极管(Organic Light EmittingDiode,简称OLED)技术的发展水平。首先概述了FMM的主要制备技术,介绍了对FMM基材Invar合金的质量要求,并对国产Invar合金箔和国外进口Invar合金箔内的夹杂物进行了表征分析。结果表明,国产Invar合金箔的纯净度与进口Invar合金箔相比,仍存在很大的差距,主要体现在夹杂物的尺寸和数量等方面。为实现OLED配套产业全国产化,攻克Invar合金的近零夹杂难题,开发新型制备技术是关键突破点。最后详细论述了超重力技术在Invar合金除杂方面的研究成果和电铸Invar合金箔应用的可行性,并指出超重力技术和电铸技术有望解决近零夹杂金属材料的制备难题。展开更多
The Cu/Invar composites of 40% Cu were prepared by powder metallurgy, and the composites were rolled with 70% reduction and subsequently annealed at 750 ℃. Phases, microstructures and properties of the composites wer...The Cu/Invar composites of 40% Cu were prepared by powder metallurgy, and the composites were rolled with 70% reduction and subsequently annealed at 750 ℃. Phases, microstructures and properties of the composites were then studied. After that, the amount of a-Fe（Ni,Co） in the composites is reduced, because a-Fe（Ni,Co） partly transfers into y-Fe（Ni,Co） through the diffusion of the Ni atoms into a-Fe（Ni,Co） from Cu. When the rolling reduction is less than 40%, the deformation of Cu takes place, resulting in the movement of the Invar particles and the seaming of the pores. When the rolling reduction is in the range from 40% to 60%, the deformations of Invar and Cu occur simultaneously to form a streamline structure. After rolling till 70% and subsequent annealing, the Cu/Invar composites have fine comprehensive properties with a relative density of 98.6%, a tensile strength of 360 MPa, an elongation rate of 50%, a thermal conductivity of 25.42 W/（m.K） （as-tested） and a CTE of 10.79× 10-6/K （20-100 ℃）.展开更多
文摘Invar合金是制备精细金属掩模板(Fine Metal Mask,简称FMM)的重要基材,其纯净度直接影响FMM的质量以及有机发光二极管(Organic Light EmittingDiode,简称OLED)技术的发展水平。首先概述了FMM的主要制备技术,介绍了对FMM基材Invar合金的质量要求,并对国产Invar合金箔和国外进口Invar合金箔内的夹杂物进行了表征分析。结果表明,国产Invar合金箔的纯净度与进口Invar合金箔相比,仍存在很大的差距,主要体现在夹杂物的尺寸和数量等方面。为实现OLED配套产业全国产化,攻克Invar合金的近零夹杂难题,开发新型制备技术是关键突破点。最后详细论述了超重力技术在Invar合金除杂方面的研究成果和电铸Invar合金箔应用的可行性,并指出超重力技术和电铸技术有望解决近零夹杂金属材料的制备难题。
文摘The Cu/Invar composites of 40% Cu were prepared by powder metallurgy, and the composites were rolled with 70% reduction and subsequently annealed at 750 ℃. Phases, microstructures and properties of the composites were then studied. After that, the amount of a-Fe（Ni,Co） in the composites is reduced, because a-Fe（Ni,Co） partly transfers into y-Fe（Ni,Co） through the diffusion of the Ni atoms into a-Fe（Ni,Co） from Cu. When the rolling reduction is less than 40%, the deformation of Cu takes place, resulting in the movement of the Invar particles and the seaming of the pores. When the rolling reduction is in the range from 40% to 60%, the deformations of Invar and Cu occur simultaneously to form a streamline structure. After rolling till 70% and subsequent annealing, the Cu/Invar composites have fine comprehensive properties with a relative density of 98.6%, a tensile strength of 360 MPa, an elongation rate of 50%, a thermal conductivity of 25.42 W/（m.K） （as-tested） and a CTE of 10.79× 10-6/K （20-100 ℃）.
