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无压浸渗法制备高体积含量的铝基复合材料 孙素杰1,徐永东1,赵国田1,陈照峰2,朱秀荣1 (1.中国兵器科学研究院,宁波分院,浙江,宁波,315103;2.南京航空航天大学,材料科学与技术学院,南京,210016) 摘要:试验采用对SiCp表面预氧化后镀镍处理,将颗粒大小为28,43,74 μm,质量之比为2:3:5的SiCp和有机胶PVA混合后,用液压机制成Ф(100±1)mm,厚10 mm,相对密度为68%的预制件,将预制件置于N2气氛的箱式电阻炉中850℃浸渗2 h制成SiCp增强的铝基复合材料.试验结果表明,SiCp表面镀镍后明显地改善了铝合金对其的润湿性能,促使浸渗过程快速进行......
short fibers(Al2O3sf) and silicon carbide particles(SiCp) as wear-resistant materials were prepared by pressure infiltration in this study. Further, the effect of Al2O3sf on the friction and wear......
on the rainfall infiltration depth of different sections of the 2-D slope model was studied. The results show that the depth of rainfall infiltration is proportional to the thickness of the soil layer of the slope... of the soil slope determines the distribution characteristics of the pore water pressure; thicker soil layer causes the greater depth of rainfall infiltration in each section of the slope......
; 文章编号:1672-7207(2012)S1-0008-07 Control effectiveness of foyer and warm air curtain about natural infiltration in railway stations ZHOU Xin, YAN Da (School... curtain will improve the blocking effect, and it is better to install the warm air curtain on the opening of foyer. Key words: railway station; foyer; warm air curtain; natural infiltration 随着铁路客站建设的飞速......
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infiltration studies of liquids into 3D-stitched C-C preforms: Part A: Internal pore characterization by solvent infiltration, mercury porosimetry, and permeability studies[J]. Journal of the European...): 1191-1201. [19] JIANG S Z, XIONG X, CHEN Z K, et al. Influence factors of C/C-SiC dual matrix composites prepared by reactive melt infiltration[J]. Materials and Design, 2009, 30(9): 3738-3742. [20] YAN K F......
99.0%) can be achieved by infiltrating at 1 200 ℃ for 30 min. Key words: W70Cu; warm flow compaction; complex shape part; infiltration ... and infiltration sintering of superfine grain W-Cu[J]. The International Journal of Powder Metallurgy, 1997, 33(4): 55?63. [6] 林信平, 曹顺华, 李炯义, 谢 湛, 蔡志勇. 纳米晶W-25Cu复合粉末烧结行为的研究[J]. 中国钨业, 2005, 20(1): 39?43.LIN Xin-ping......
测弯曲强度的方法,表明Ca_3(PO_4)_2/Si_3N_4复合材料具有良好的抗热震性能. 关键词:Ca_3(PO_4)_2/Si_3N_4; 无压烧结; 力学性能; 抗热震性能; Ca_3(PO_4)_2; Si_3N_4; pressureless sintering; mechanical properties; thermal shock resistance; [全文内容正在添加......
depositing for improving the permeability of dump and increasing the metal leaching rate in practice. Key words: particles; infiltration deposition; dump; seepage characteristic; mathematic model ......
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