| 稀土元素La对Ni75B17Si8非晶合金形成能力和热稳定性的影响 |
| |
| 引用本文： | 邢力谦,赵德乾,陈希成,陈熙琛,杨根仓,周尧和.稀土元素La对Ni75B17Si8非晶合金形成能力和热稳定性的影响[J].物理学报,1993,42(3):465-469. |
| |
| 作者姓名： | 邢力谦 赵德乾 陈希成 陈熙琛 杨根仓 周尧和 |
| |
| 作者单位： | (1)西北工业大学,西安710072; (2)中国科学院物理研究所,北京100080 |
| |
| 基金项目： | 中国科学院金属研究所快速凝固非平衡合金实验室部分资助的课题 |
| |
| 摘 要： | 本文发现微量稀土元素在某些合金中可不呈均匀固溶态分布,而与母合金某些原子反应生成高熔点化合物,或吸附于合金中异质核心表面改变其异质形核的活性。当稀土元素以这种状态存在时,不但失去稳定非晶相的作用,而且促进异质形核,降低合金的非晶形成能力和热稳定性。
关键词：
|
| 关 键 词： | 稀土族 金属玻璃 热稳定性 形成 |
| 收稿时间： | 3/6/1992 12:00:00 AM |
EFFECTS OF RARE-EARTH ELEMENT La ON GLASS FORM-ING ABILITY AND T HERMOST ABILITY OF Ni-B-Si METALLIC GLASS |
| |
| XING LI-QIAN,ZHAO DE-QIAN,CHEN XI-CHENG,CHEN XI-SHEN,YANG GEN-CANG and ZHOU YAO-HE.EFFECTS OF RARE-EARTH ELEMENT La ON GLASS FORM-ING ABILITY AND T HERMOST ABILITY OF Ni-B-Si METALLIC GLASS[J].Acta Physica Sinica,1993,42(3):465-469. |
| |
| Authors: | XING LI-QIAN ZHAO DE-QIAN CHEN XI-CHENG CHEN XI-SHEN YANG GEN-CANG and ZHOU YAO-HE |
| |
| Abstract: | Small amount of rare-earth elements may have negative effects on the formation of some metallic glass alloys. The rare-earth elements may react with some atoms of the alloys to form compounds of high melting points or be absorbed on the surfaces of the heterogeneous catalysts in the alloys to activate the heterogeneous nucleation. In this case, the rare-earth elements have no effects on enhancing the stability of the metallic glass phase but enhance the heterogeneous nucleation and decrease the metallic glass forming ability and thermostability. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
|
