| 付少利,刘平,陈小红,刘新宽.SPS工艺对CuCr/CNTs复合材料组织性能的影响[J].有色金属材料与工程,2017,38(2):78-84. |
| SPS工艺对CuCr/CNTs复合材料组织性能的影响 |
| SPS Impacts on Microstructures and Properties of CuCr/CNTs Composite Materials |
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| DOI：10.13258/j.cnki.nmme.2017.02.004 |
| 中文关键词: CuCr/CNTs复合材料 放电等离子烧结 导电率 组织性能 |
| 英文关键词:CuCr/CNTs composite materials spark plasma sintering electrical conductivity microstructure and property |
| 基金项目:国家自然科学基金项目（51201107）；上海市科委基础研究重点项目（10JC1411800） |
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| 中文摘要: |
| 放电等离子烧结（SPS）工艺可以实现快速烧结成型，且制备出的复合材料致密度高、硬度高、导电和导热性能好、晶粒尺寸均匀.在采用化学气相沉积（CVD）法原位合成分布均匀的CuCr/CNTs复合粉末的基础上，运用不同的SPS工艺制备CuCr/CNTs复合材料.利用扫描电子显微镜、偏光显微镜、数字金属导电率测试仪、微拉伸试验机、显微硬度计等对其组织性能进行表征.结果表明，当烧结温度为750 ℃，烧结压力为45 MPa，烧结时间为10 min，升温速率为80 ℃/min时，制备的CuCr/CNTs复合材料的组织和性能较佳，导电率、硬度和抗拉强度分别为86.8%IACS、95.8（HV）、178 MPa. |
| 英文摘要: |
| Spark plasma sintering(SPS) process has the advantage of rapid sintering molding,high density,high hardness,good electrical conductivity,excellent thermal conductivity and uniform grain size on composite materials.This manuscript reports that different SPS processes were used to prepare CuCr/CNTs composite materials from well-distributed CuCr/CNTs composite powder which is synthesized in-situ by chemical vapor deposition method.Besides its microstructure and performance were characterized by using SEM,polarizing microscope,digital metallic conductivity tester,micro tensile testing machine and microhardness tester.It is found that the best microstructure and property were achieved when the sintering temperature is 750 ℃,sintering time is 10 min,sintering pressure is 45 MPa and heating rate is 80 ℃/min.Finally,the electrical conductivity,hardness and tensile strength are 86.8%IACS,95.8(HV)and 170 MPa,respectively. |
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