| 单体浓度对多孔钛凝胶固化过程及性能的影响 |
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| 引用本文： | 胡海波,傅上,王杰恩,刘会群,孙武令. 单体浓度对多孔钛凝胶固化过程及性能的影响[J]. 稀有金属与硬质合金, 2011, 39(4) |
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| 作者姓名： | 胡海波 傅上 王杰恩 刘会群 孙武令 |
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| 作者单位： | 1. 烟台工程职业技术学院,山东烟台,264006
2. 中南大学材料科学与工程学院,湖南长沙410083;中南大学有色金属材料科学与工程教育部重点实验室,湖南长沙410083 |
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| 摘 要： | 采用凝胶固化和真空烧结手段制备了多孔钛块体材料,借助扫描电子显微镜、热分析仪和电子万能试验机等分析了不同单体浓度对多孔钛凝胶固化、坯体和烧结体力学性能的影响.结果表明:浆料pH值在7～9范围内分散剂柠檬酸铵的分散作用明显；浆料体系中单体质量分数为20％,引发剂过硫酸铵加入量为6 mmol/L,氨水加入量为0.1mL,温度为45℃时,其凝胶固化时间为68 min;单体质最分数为15％、20％、25％时,所制备坯体的抗弯强度分别为15.2、20.6、24.1 MPa；经1100℃/2 h烧结后,烧结体的开孔孔隙度为39.5％.
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| 关 键 词： | 多孔钛 单体浓度 凝胶固化 凝胶注模 真空烧结 |
The Influence of Monomer Concentration on Gelation and Property of Porous Titanium |
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| HU Hai-bo,Fu Shang,WANG Jie-en,LIU Hui-qun,SUN Wu-ling. The Influence of Monomer Concentration on Gelation and Property of Porous Titanium[J]. Rare Metals and Cemented Carbides, 2011, 39(4) |
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| Authors: | HU Hai-bo Fu Shang WANG Jie-en LIU Hui-qun SUN Wu-ling |
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| Affiliation: | HU Hai-bo1,Fu Shang2,3,WANG Jie-en1,LIU Hui-qun2,SUN Wu-ling1(1.Yantai Engineering & Technology College,Yantai 264006,China,2.School of Materials Scienceand Engineering,Central South University,Changsha 410083,3.The Key Laboratory ofNonferrous Metal Material Science and Engineering,China) |
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| Abstract: | Porous titanium compacts were prepared by gelatining solidification and vacuum sintering technique.The influence of monomer concentration on gelatining solidification,microstructure and properties of sintered compact of porous titanium were analyzed by scanning electron microscope(SEM),differential scanning calorimeter(DSC) and mechanical testing machine.The results showed that the role of dispersant citrate ammonium was apparent when the pH values of slurry were in the range from 7 to 9.When the monomer co... |
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| Keywords: | porous titanium monomer concentration gelatining gelcasting vacuum sintering |
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