| 化学键性质对机械合金化过程中非晶形成能力的影响 |
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| 引用本文： | 郑明新,张翔,郑仲瑜.化学键性质对机械合金化过程中非晶形成能力的影响[J].材料研究学报,1996(5). |
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| 作者姓名： | 郑明新 张翔 郑仲瑜 |
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| 作者单位： | 清华大学 |
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| 摘 要： | 研究了Ｂ２型金属间化合物ＦｅＡｌ和ＦｅＴｉ的机械合金化过程发现在相同的试验条件下，ＦｅＡｌ形成化学无序的固溶体，ＦｅＴｉ形成结构无序的非晶态。此现象可用ＦｅＡｌ的化学键为金属—离子混合键，而ＦｅＴｉ的化学键为金属—共价—离子混合键来解释。
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| 关 键 词： | 机械合金化，化学无序，结构无序 |
EFFECT OF CHEMICAL BONDING CHARACTER OF INTERMETALLIC COMPOUNDS ON THEIR GLASS FORMATION TENDENCY IN THE PROCESS OF MECHANICAL ALLOYING |
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| ZHENG Mingxin,ZHANG Xiang,ZHENG Zhongyu.EFFECT OF CHEMICAL BONDING CHARACTER OF INTERMETALLIC COMPOUNDS ON THEIR GLASS FORMATION TENDENCY IN THE PROCESS OF MECHANICAL ALLOYING[J].Chinese Journal of Materials Research,1996(5). |
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| Authors: | ZHENG Mingxin ZHANG Xiang ZHENG Zhongyu |
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| Affiliation: | Tsinghua University |
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| Abstract: | In this paper, the mechanical alloying process of two intermetallic compounds of the type B2 FeAl and FeTi has been investigated.It is found that FeAl forms a chemical-disordered solution, but FeTi exists in a structural-disordered noncrystalline state under the same experimental conditions. Such results can be explained by that FeAl is of the metallic-ionic mixed bonding and FeTi the metallic-covalent-ionic mixed one. |
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| Keywords: | mechanical alloying chemical disordering structural disordering |
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