Sm-Co二元合金非晶块体材料的制备与表征  

Preparation and Characterization of Binary Sm-Co Bulk Amorphous Alloy

作　　者：闫相全[1] 宋晓艳[1] 李尔东[1] 王甲[1] 张久兴[1] 

机构地区：[1]北京工业大学教育部新型功能材料重点实验室,北京100022

出　　处：《稀有金属材料与工程》2008年第A04期730-732,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(50401001;50671001)

摘　　要：稀土-过渡金属二元系合金稳定的非晶块体材料的制备一直是非晶材料研究领域的挑战性难题。本研究组以Sm-Co二元合金体系为例,探索出了一条制备稀土-过渡金属二元合金非晶块体材料的创新途径。采用真空感应熔炼制备Sm-Co合金铸锭、高能球磨制取合金非晶态粉末、高压放电等离子烧结致密化的工艺路线,制备获得了稳定的Sm-Co二元合金非晶块体。对块体材料进行XRD、DSC、TEM等表征和分析,研究了二元非晶合金块体的结构和制备工艺的关系。Preparation of the stable binary rare earth-transition metal bulk amorphous alloy is still a challenge in the related field in the world. Using the binary Sm-Co alloy system as an example, in this paper a novel approach for preparation of binary rare earth-transition metal bulk amorphous alloy was proposed. Firstly, Sm-Co alloy ingots were prepared by induction melting in the vacuum. Then the amorphous alloy powder was prepared by high-energy ball milling. Subsequently, the stable binary Sm-Co bulk amorphous alloy was obtained by spark plasma sintering （SPS） from the amorphous powder. The specimens were examined by X-ray diffraction （XRD）, differential scanning calorimeter （DSC） and transmission electron microscopy （TEM）. The relationship between the structure and the preparation parameters was studied.

关 键 词：块体非晶 Sm-Co合金 高能球磨 放电等离子烧结 

分 类 号：TG139.8[一般工业技术—材料科学与工程]