放电等离子烧结溶解法制备SiC/Al复合泡沫材料及其压缩性能
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摘要
以纯铝为基体,NaCl作为造孔剂,粒径为20μm的SiC颗粒为增强相,采用放电等离子烧结溶解法制备SiC/Al复合泡沫。用SEM、EDS对其微观形貌进行表征,并对该复合泡沫材料进行压缩实验,研究其室温下的压缩性能.结果表明:在真空状态下,采用烧结温度550℃,外加压力30 MPa,保温时间10min,能够制备出致密度在97. 6%,性能优异的SiC/Al复合泡沫材料.与纯泡沫铝相比,SiC/Al复合泡沫的强度高,当SiC的添加量(质量分数)为10%时,SiC/Al复合泡沫的强度为58 MPa,增长幅度为82. 76%.
The pure Al foam reinforced by SiC particles was prepared by Spark Plasma Sintering( SPS) and dissolution process with NaCl as space holders. The microstructure of the SiC/Al composite foam was analyzed by SEM and EDS.The compressive properties of the composite foam at room temperature were studied by static compression. The results showed that the SiC/Al composite foams with relative density of 97. 6% and excellent performance can be prepared by SPS at 550 ℃ for dwell time of 10 min at an external pressure of 30 MPa in vacuum. Compared with the Al foams,the SiC/Al composite foams have higher strength. When the addition amount of SiC is 10%,strength of the SiC/Al composite foam is 58 MPa,the growth ratio is 82. 76%.
The pure Al foam reinforced by SiC particles was prepared by Spark Plasma Sintering( SPS) and dissolution process with NaCl as space holders. The microstructure of the SiC/Al composite foam was analyzed by SEM and EDS.The compressive properties of the composite foam at room temperature were studied by static compression. The results showed that the SiC/Al composite foams with relative density of 97. 6% and excellent performance can be prepared by SPS at 550 ℃ for dwell time of 10 min at an external pressure of 30 MPa in vacuum. Compared with the Al foams,the SiC/Al composite foams have higher strength. When the addition amount of SiC is 10%,strength of the SiC/Al composite foam is 58 MPa,the growth ratio is 82. 76%.
引文
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[6]沈佳兴,徐平,于英华.泡沫铝填充结构救生舱热-压力耦合冲击性能研究[J].振动与冲击,2018,37(16):7-13.(Shen Jiaxing,Xu Ping,Yu Yinghua.A study on the chattering behavior of an impact damper[J].Journal of vibration and shock,2018,37(16):7-13.)
[7]王松林,凤仪,徐屹,等.Si Cp增强泡沫铝基复合材料的制备工艺研究[J].金属功能材料,2005,12(6):22-26.(Wang Songlin,Feng Yi,Xu Yi,et al.Fabricating process of Si C particle-reinforced aluminum foam matrix composite[J].metallic functional materials,2005,12(6):22-26.)
[8]王展光,杜晟连.固相颗粒粉末冶金泡沫铝的性能研究[J].粉末冶金工业,2014,24(2):29-32.(Wang Zhanguang,Du Shenglian.Mehanical properties of granular reinforced P/M Al foams[J].Pow der M etallurgy Industry,2014,24(2):29-32.)
[9]Li A B,Xu H Y,Geng L,et al.Preparation and characterization of Si C_p/2024Al composite foams by pow der metallurgy[J].T he C hinese Journal of N onferrous M etals,2012,22(10):33-38.
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[11]Huo D W,Yang J,Zhou X Y,et al.Preparation of opencelled aluminum foams by counter-gravity infiltration casting[J].Transactions of the Nonferrous Metals Society of China,2012,22(1):85-89.
[12]杜晓明,杨君宝,董秀琦.上压渗流铸造法制备泡沫铝[J].沈阳理工大学学报,2009,28(1):18-21.(Du Xiaoming,Yang Junbao,Dong Xiuqi.Preparation of foamed aluminum by means of penetrating casting[J].T ransactions of Shenyang Ligong U niversity,2009,28(1):85-89.)
[13]Wang J,Yang X,Zhang M,et al.A novel approach to obtain in-situ grow th carbon nanotube reinforced aluminum foams w ith enhanced properties[J].M aterials Letters,2015,161:763-766.
[14]王军德,陈贵清.小孔径泡沫铝制备工艺研究[J].轻合金加工技术,2017,45(12):60-64.(Wang Dejun,Chen Guiqing,Study on preparation technology of aluminum foam w ith small aperture[J].Light Alloy Fabrication T echnology,2017,45(12):60-64.)
[15]Li M,Liu Y,Lu G,et al.Preparation and dynamic deuterium gas loading of highly porous palladium bulks[J].International Journal of Hydrogen Energy,2007,32(18):5033-5038.
[16]Zarebski K,Putyra P.Iron powder-based graded products sintered by conventional method and by SPS[J].Advanced Pow der T echnology,2015,26(2):401-408.
[17]Ye M,Wenjiang Q,Chengchang J.Status quo of spark plasma sintering in Japan[J].Pow der M etallurgy T echnology,2014,32(4):296-305.
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[19]Slipenyuk A,Kuprin V,Milman Y,et al.Properties of P/Mprocessed particle reinforced metal matrix composites specified by reinforcement concentration and matrix-to-reinforcement particle size ratio[J].Acta M aterialia,2006,54(1):157-166.
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