金属-类金属非晶态合金的菱面体单元结构模型与形成能力的关系

RELATIONSHIP BETWEEN RHROMBOHEDRON UNIT STRUCTURE MODEL AND FORMING ABILITY FOR METAL METALLOID AMORPHOUS ALLOY

进一步发展了非晶态合金菱面体单元结构模型的概念，认为不仅存在（２∶１）菱面体单元结构，而且存在（１∶１）菱面体单元结构和（４∶１）菱面体单元结构。通过计算上述几种结构的金属类金属键与类金属含量的关系曲线，发现其变化趋势和实验得到的非晶态合金形成能力与类金属含量的关系曲线一致。

The rhombohedron unit structure model (RUSM) concept drawn from (2∶1) RUSM has been extended to (1∶1) RUSM and to (4∶1) RUSM. The tendendcy of calculated curves of metal metalloid bonds ( ) vs metalloid content by above RUSM are in good agreement with that of experimental one of critical thickness vs metalloid content for some amorphous alloys. This proves the proposed (1∶1) RUSM and (4∶1) RUSM to be reasonable.