| 非水基凝胶注模成形制备Mo/Cu合金 |
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| 引用本文： | 段柏华,戚诚康,王德志,傅臻,尹邦柱.非水基凝胶注模成形制备Mo/Cu合金[J].有色金属科学与工程,2017,8(1):56-62. |
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| 作者姓名： | 段柏华 戚诚康 王德志 傅臻 尹邦柱 |
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| 作者单位： | a.中南大学, 材料科学与工程学院, 长沙 410083 |
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| 基金项目： | 国家自然科学基金资助项目51274246 |
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| 摘 要： | 以球形铜粉和等离子球化钼粉为原料，采用非水基凝胶注模体系制备Mo/Cu合金.研究分散剂用量和固相体积分数对浆料黏度的影响，并对凝胶生坯的干燥、脱脂和烧结进行分析.结果表明:浆料黏度随着分散剂用量的增加先减小后增大，随着固相体积分数的升高而增大.采用丙酮作为液体干燥介质，6 h即可完全脱除凝胶坯体中的残留溶剂.烧结体的致密度随着烧结温度和烧结时间的升高而增大.
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| 关 键 词： | Mo-Cu合金 凝胶注模成形 干燥 脱脂 烧结 |
| 收稿时间： | 2016-05-06 |
Preparation of Mo/Cu alloy by non-aqueous gelcasting |
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| Affiliation: | a.School of Material Science and Engineering, Ministry of Education, Central South University, Changsha 410083, Chinab.Key Laboratory of Nonferrous Material Science and Engineering, Ministry of Education, Central South University, Changsha 410083, China |
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| Abstract: | Mo/Cu alloy was fabricated by non-aqueous gelcasting with gas atomized copper powder and plasma spheroidized molybdenum powder. The influence of dispersant content and solid loading on the viscosity of slurry was studied by analyzing the drying, debinding and sintering process of gelcasting green body. The results show that the viscosity of slurry firstly decreases and then increases with the adding dispersant content. The viscosity of slurry increases proportionately with solid loading. Using acetone as liquid drying medium can completely remove the residual solvent in green body within 6 h. The relative density of sintered body increases with the rising sintering temperature and prolonging sintering time. |
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