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| 氢化脱氢钛粉末颗粒的整形及其机理研究 | |
| 引用本文： | 郝向阳,盖国胜,邹欣,吴运新,张以河.氢化脱氢钛粉末颗粒的整形及其机理研究[J].稀有金属材料与工程,2009,38(Z3). |
| 作者姓名： | 郝向阳 盖国胜 邹欣 吴运新 张以河 |
| 作者单位： | 1. 中国地质大学,北京,100083 2. 清华大学,北京,100084 3. University,of,Massachusetts-Lowell,MA,01854,USA |
| 摘 要： | HDH(氢化脱氢)钛粉末颗粒形状不规则、流动性较差,不利于注射成形和提高其制品性能.本研究利用PCS系统对HDH钛粉末颗粒进行整形,考察了处理工艺,用扫描电镜和粒度分析表征处理结果,推测PCS的整形机理不是传统的粉碎过程,而是钛粉末颗粒的棱角被打磨掉再与大颗粒吸附嵌入,较好地解释了粒度分布等测试结果.整形后的HDH钛粉末颗粒尖锐的棱角被钝化,变为近球形,粉末的流动性显著提高. |
| 关 键 词： | 整形 球形化 氢化脱氢(HDH)钛粉 粒度 |
Shape Modification of HDH Ti Powder and Its Mechanism Analysis |
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| Hao Xiangyang,Gai Guosheng,Zou Xin,Wu Yunxin,Zhang Yihe,Emmanuelle Reynaud.Shape Modification of HDH Ti Powder and Its Mechanism Analysis[J].Rare Metal Materials and Engineering,2009,38(Z3). | |
| Authors: | Hao Xiangyang Gai Guosheng Zou Xin Wu Yunxin Zhang Yihe Emmanuelle Reynaud |
| Affiliation: | Hao Xiangyang1,Gai Guosheng2,Zou Xin2,Wu Yunxin2,Zhang Yihe1,Emmanuelle Reynaud3 (1. China University of Geosciences,Beijing 100083,China) (2. Tsinghua University,Beijing 100084,China) (3. University of Massachusetts-Lowell,MA 01854,USA) |
| Abstract: | Due to its irregular shape and unfavorable rheological properties, the HDH Ti powder is not good for injection molded high-performance products. HDH Ti powder was treated by PCS (particle composite system) and the effect was studied. Morphology of particles was investigated by SEM, particle size analysis was carried and related mechanism was discussed. The treatment is not a traditional smash process, HDH Ti powders with sharp edge angles are rounded off, absorbed and embedded on larger particles. So grain ... |
| Keywords: | shape modification spheroidization HDH Ti powder grain size |
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