| 多孔预制件对TiC/Ni_3Al复合材料孔隙率的影响 |
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| 引用本文： | 缪燕平,何柏林.多孔预制件对TiC/Ni_3Al复合材料孔隙率的影响[J].粉末冶金工业,2009,19(3). |
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| 作者姓名： | 缪燕平 何柏林 |
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| 作者单位： | 1. 江西蓝天学院,机电系,江西,南昌,330098
2. 华东交通大学机电工程学院,江西,南昌,330013 |
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| 基金项目： | 江西蓝天学院自然科学基金 |
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| 摘 要： | 采用无压熔渗法制备了TiC含量较高的TiC/Ni3Al复合材料,分析了不同TiC质量分数对多孔预制件孔隙率的影响,利用无压浸渗多孔体理论分析了多孔预制件孔隙结构对复合材料孔隙率的影响.结果表明:通过增加TiC质量分数可以调节多孔预制件的孔隙结构,使预制件的孔隙率增加;多孔预制件孔隙结构的变化可以调节复合材料的孔隙率.多孔预制件的孔隙率越高、孔隙尺寸越大,则金属间化合物熔体浸渗畅通,复合材料的孔隙率越小.
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| 关 键 词： | TiC/Ni-3Al复合材料 多孔预制件 孔隙率 |
EFFECT OF POROUS PREFORMS ON POROSITY OF PREPARED TiC/Ni_3Al COMPOSITES |
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| MIAO Yan-Ping,HE Bo-lin.EFFECT OF POROUS PREFORMS ON POROSITY OF PREPARED TiC/Ni_3Al COMPOSITES[J].Powder Metallurgy Industry,2009,19(3). |
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| Authors: | MIAO Yan-Ping HE Bo-lin |
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| Affiliation: | 1.Department of Mechanica;Jiangxi BlueSky University;Nanchang;330098;China;2.School of Mechanical & Electrical Engineering;East China Jiaotong University;Nanchang 330013;China |
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| Abstract: | TiC/Ni3Al conmposites with high content of TiC were fabricated by pressureless infiltration method.The effect of content of TiC on porosity of porous preforms was studied.The results show that infiltration of liquid Ni3Al into porouspreforms depended on various factors and infiltration force,especially on the properties of porous preforms.Composities of low porosity and high properties can be obtained by adjusting porosity and pore structures.Practice shows that the higher the porosity of porous preform and... |
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| Keywords: | TiC/Ni_3Al Composite Porous Preform Porosity |
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