Effect of hyperbranched polyester binders on properties of Fe–Fe3P bonding mixed powders
Fe–Fe3P adhesive premixed powders were prepared by using hyperbranched polyester as the binders. The microstructure of the powders was observed by scanning electron microscope. The effect of hyperbranched polyester binder content (mass fraction) on the properties of the Fe−Fe3P powder mixture and th...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Powder Metallurgy Technology
2024-10-01
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| Series: | Fenmo yejin jishu |
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| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2024050019 |
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| _version_ | 1846169214060068864 |
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| author | JIANG Huangyong SUN Zeyu CHEN Zhidong ZHANG Chen CHEN Bing BAO Chongxi |
| author_facet | JIANG Huangyong SUN Zeyu CHEN Zhidong ZHANG Chen CHEN Bing BAO Chongxi |
| author_sort | JIANG Huangyong |
| collection | DOAJ |
| description | Fe–Fe3P adhesive premixed powders were prepared by using hyperbranched polyester as the binders. The microstructure of the powders was observed by scanning electron microscope. The effect of hyperbranched polyester binder content (mass fraction) on the properties of the Fe−Fe3P powder mixture and the sintered products was studied. The results show that the proportion of small particle size powders with particle size ≤10 μm (mostly Fe3P powders) in the bonded mixed powders accounts for 0.65% of the total number of powder particles, which is significantly lower than that of the un-bonded mixed powders (5.93%). Hyperbranched polyester can successfully bond the Fe3P powders to the iron powder surface, which is beneficial to improve the uniformity of phosphorus in the mixed powders and prevent segregation. The Fe–Fe3P bonded mixed powders with 0.10% terminal hydroxyl hyperbranched polyester show the best powder fluidity and loose packing density. The pressing pressure of the Fe–Fe3P green billets with the same density increases with the increase of the mass fraction of hyperbranched polyester. The addition of hyperbranched polyester binder can reduce the size change rate of the sintered body before and after sintering, improve the transverse fracture strength of the sintered body, and maintain good bonding property in the actual production process. |
| format | Article |
| id | doaj-art-aa2c459f1a4c482d8a43efce9e38fb7c |
| institution | Kabale University |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2024-10-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-aa2c459f1a4c482d8a43efce9e38fb7c2024-11-13T05:47:21ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842024-10-0142548949610.19591/j.cnki.cn11-1974/tf.2024050019Effect of hyperbranched polyester binders on properties of Fe–Fe3P bonding mixed powdersJIANG Huangyong0SUN Zeyu1CHEN Zhidong2ZHANG Chen3CHEN Bing4BAO Chongxi5NBTM New Materials Group Co., Ltd., Ningbo 315191, ChinaNBTM New Materials Group Co., Ltd., Ningbo 315191, ChinaNBTM New Materials Group Co., Ltd., Ningbo 315191, ChinaNBTM New Materials Group Co., Ltd., Ningbo 315191, ChinaNBTM New Materials Group Co., Ltd., Ningbo 315191, ChinaNBTM New Materials Group Co., Ltd., Ningbo 315191, ChinaFe–Fe3P adhesive premixed powders were prepared by using hyperbranched polyester as the binders. The microstructure of the powders was observed by scanning electron microscope. The effect of hyperbranched polyester binder content (mass fraction) on the properties of the Fe−Fe3P powder mixture and the sintered products was studied. The results show that the proportion of small particle size powders with particle size ≤10 μm (mostly Fe3P powders) in the bonded mixed powders accounts for 0.65% of the total number of powder particles, which is significantly lower than that of the un-bonded mixed powders (5.93%). Hyperbranched polyester can successfully bond the Fe3P powders to the iron powder surface, which is beneficial to improve the uniformity of phosphorus in the mixed powders and prevent segregation. The Fe–Fe3P bonded mixed powders with 0.10% terminal hydroxyl hyperbranched polyester show the best powder fluidity and loose packing density. The pressing pressure of the Fe–Fe3P green billets with the same density increases with the increase of the mass fraction of hyperbranched polyester. The addition of hyperbranched polyester binder can reduce the size change rate of the sintered body before and after sintering, improve the transverse fracture strength of the sintered body, and maintain good bonding property in the actual production process.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2024050019hyperbranched polyesterbinderspressing propertiestransverse fracture strength |
| spellingShingle | JIANG Huangyong SUN Zeyu CHEN Zhidong ZHANG Chen CHEN Bing BAO Chongxi Effect of hyperbranched polyester binders on properties of Fe–Fe3P bonding mixed powders Fenmo yejin jishu hyperbranched polyester binders pressing properties transverse fracture strength |
| title | Effect of hyperbranched polyester binders on properties of Fe–Fe3P bonding mixed powders |
| title_full | Effect of hyperbranched polyester binders on properties of Fe–Fe3P bonding mixed powders |
| title_fullStr | Effect of hyperbranched polyester binders on properties of Fe–Fe3P bonding mixed powders |
| title_full_unstemmed | Effect of hyperbranched polyester binders on properties of Fe–Fe3P bonding mixed powders |
| title_short | Effect of hyperbranched polyester binders on properties of Fe–Fe3P bonding mixed powders |
| title_sort | effect of hyperbranched polyester binders on properties of fe fe3p bonding mixed powders |
| topic | hyperbranched polyester binders pressing properties transverse fracture strength |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2024050019 |
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