Abstract
Relation between glass-forming regions and amorphous-forming regions were discussed among the various multi-component systems according to the preparation methods and experimental conditions. It was concluded that melt-quenching technique can yield comparatively small range of amorphous composition since obtainable quenching rate is limited. Sputtering technique, on the other hand, is regarded as a most powerful technique to produce amorphous materials. Thus sol-gel technique is another most promising technique to obtain wide range of amorphous materials as long as the gels formed are water resistant. Sol-gel method can transform high melting point compounds such as Al2O3 and TiO2 into amorphous. TC/TL ratio can be regarded useful for the evaluation of amorphous-forming ability despite the different preparation techniques. In conclusion it can be stated that amorphous-forming ability is intrinsic to the constituents, only slightly dependent on the preparation technique.
