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1.宁夏大学 数学统计学院,宁夏 银川 750021
2.宁夏大学 物理学院,宁夏 银川 750021
Received:16 December 2025,
Published:25 March 2026
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剡德科,安春旭,母全祎.直写打印参数及烧结条件对打印纳米银浆的影响[J].西北工程技术学报(中英文),2026,25(1):63-69.
YAN Deke,AN Chunxu,MU Quanyi.Effects of Direct Ink Writing Printing Parameters and Sintering Conditions on Printed Nano Silver Paste[J].Journal of Northwest Engineering Technology,2026,25(01):63-69.
剡德科,安春旭,母全祎.直写打印参数及烧结条件对打印纳米银浆的影响[J].西北工程技术学报(中英文),2026,25(1):63-69. DOI: 10.26974/j.cnki.XBGC.2026.01.009.
YAN Deke,AN Chunxu,MU Quanyi.Effects of Direct Ink Writing Printing Parameters and Sintering Conditions on Printed Nano Silver Paste[J].Journal of Northwest Engineering Technology,2026,25(01):63-69. DOI: 10.26974/j.cnki.XBGC.2026.01.009.
研究了直写(direct ink writing,DIW)打印纳米银浆过程中,挤出气压、针头孔径及烧结温度与时间对银线烧结行为的影响,分析了上述参数对烧结过程中归一化质量、归一化电阻及烧结后银线横截面积、电阻率的影响规律与内在机理。结果表明:较高的挤出气压与较大的针头孔径虽然会导致烧结后银线中残留添加剂较多,但因银线横截面积较大,相同长度下银线电阻反而较低;而较低的挤出气压与较小的针头孔径下,DIW银线中溶剂和添加剂移除更快,从而缩短烧结时间。因此,若以低电阻为主要目标,可采用较高挤出气压配合大孔径针头;若追求快速烧结,则可选择较低挤出气压与小孔径针头的组合。烧结温度方面,120,140 ℃条件下,归一化质量与归一化电阻约30 min达到稳定状态;而在160,180 ℃条件下,仅需10 min即可达到稳定状态。实际应用中可根据基底耐温特性,选择较低温度、较长烧结时间或较高温度、较短烧结时间,以达到烧结目的。
This study investigates the effects of extrusion pressure, needle inner diameter, sintering temperature, and sintering time on the sintering behavior of silver wires during the direct ink writing (DIW) process of nano silver paste. The relationship between these parameters and normalized mass, normalized resistance, cross-sectional area and resistivity of the sintered silver wires was analyzed. The results indicate that higher extrusion pressures and larger needle inner diameters lead to an increased presence of residual additives in the sintered silver wires; however, the larger cross-sectional area results in lower resistance for silver wires of the same length. Conversely, lower extrusion pressures and smaller needle inner diameters facilitate faster removal of solvents and additives, thus shortening the sintering time. Therefore, to achieve low resistance, a combination of higher extrusion pressure and larger needle inner diameter is recommended; for rapid sintering, a combination of lower extrusion pressure and smaller needle inner diameter is more suitable. At sintering temperatures of 120 and 140 °C, the normalized mass and normalized resistance stabilize after approximately 30 minutes, whereas at 160 and 180 °C, stabilization is achieved in only 10 minutes. In practical applications, depending on the substrate’s thermal resistance, once may choose between lower temperatures with longer sintering times or higher temperatures with shorter sintering times to attain effective sintering.
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