AMORPHOUS-FORMING ABILITY AND ITS EVALUATION BASED ON THERMAL STABILITY OF GLASS AND AMORPHOUS CERAMICS

概要

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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 Al_2O_3 and TiO_2 into amorphous.T_C/T_L 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.
社団法人日本材料学会の論文
1995-12-15