| Kovar合金注射成形工艺研究 |
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| 引用本文： | 段柏华,周晓晖,曲选辉,徐征宙. Kovar合金注射成形工艺研究[J]. 矿冶工程, 2004, 24(5): 70-72 |
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| 作者姓名： | 段柏华 周晓晖 曲选辉 徐征宙 |
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| 作者单位： | 中南大学,粉末冶金国家重点实验室,湖南,长沙,410083;中南大学,粉末冶金国家重点实验室,湖南,长沙,410083;北京科技大学,材料科学与工程学院,北京,100083;北京科技大学,材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家 8 63计划 (2 0 0 1AA3370 50 )，国家 973计划 (G2 0 0 0 0 672 0 3) |
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| 摘 要： | 重点研究了注射成形Kovar 合金的脱脂及烧结工艺。结果表明:溶剂脱脂+热脱脂工艺能有效快速地实现粘结剂的完全脱除, 通过烧结后获得了25～400 ℃内平均热膨胀系数为5.75×10-6/ ℃的注射成形Kovar 合金封装盒体。金相显微组织及XRD 分析说明了合金主要以奥氏体(γ相)主相及少量的α相共同组成, 这种α相的存在是PIMKovar 合金热膨胀系数偏高的主要原因。
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| 关 键 词： | 粉末注射成形 Kovar合金 热膨胀性 电子封装材料 |
| 文章编号： | 0253-6099(2004)05-0070-03 |
| 收稿时间： | 2004-04-27 |
| 修稿时间： | 2004-04-27 |
Study on Powder Injection Molding of Kovar Alloy |
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| DUAN Bo-hua,ZHOU Xiao-hui,QU Xuan-hui ,,XU Zheng-zhou. Study on Powder Injection Molding of Kovar Alloy[J]. Mining and Metallurgical Engineering, 2004, 24(5): 70-72 |
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| Authors: | DUAN Bo-hua ZHOU Xiao-hui QU Xuan-hui XU Zheng-zhou |
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| Affiliation: | 1. The State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, Hunan, China;2.School of Materials Science and Engineering, Beijing University of Science &Technology, Beijing 100083, China |
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| Abstract: | The debinding and sintering process in the powder injection molding(PIM)of Kovar alloy has been investigated here.The results show that all the binder can be removed rapidly and effectively by the solvent debinding and thermal debinding, PIM Kovar alloy packing box with an average thermal expansion coefficient of 5.75 ×10-6/ ℃over the range of 25 ℃to 400 ℃ can be obtained after sintering.Both metallurgical microsructure and X-ray diffraction analysis show that the alloy is composed of austenititephase (γphase)and a little ferrite phase (αphase), while the existence of αphase mainly results in the higher thermal expanxion coefficient of PIM Kovar alloy. |
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| Keywords: | powder injection molding(PIM) Kovar alloy thermal expansion electronic packaging material |
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