The Preparation, Characterization, and Surface Reactivity of New Amorphous Metals Prepared by Co-Condensation

非晶态金属代表了一类新的材料，表现出新的体相和表面性质。许多非晶态金属表现出比晶态金属更高的催化活性和选择性。不受热力学约束的自由允许将非晶相用作其他独特的亚稳定相的先驱体。共凝聚是一种非常通用的方法来制备新的非晶态金属和其他具有特殊性质的亚稳合金。这种方法与现代表面表征和催化测试的直接结合产生了一种强有力的方法来解决与非晶态金属独特的表面性质相关的基本问题。在德克萨斯州的支持下，开发了一种独特的设备，可以在不从特高压试验室的原始环境中取出样品的情况下，对非晶态合金进行制备、表征、表面反应性研究和催化测试。在这项提案中，他们要求提供资金，以使用这种方法来研究无定形耐火合金的表面结构和化学，以提供对其表面反应性的了解，以及最终解释不寻常的催化和腐蚀性能所需的基本信息。这一建议将D.L.Cocke在研究合金表面反应性方面的独特经验与D.G.Naule在研究和制备块状和薄膜非晶态金属方面的独特经验结合在一起，从根本上解决非晶态材料在技术上的重要表面性质。他们强调，这一创新提议的主要设施已经到位；因此，主要需要较长期的业务资金。

Amorphous metals represent a novel class of materials which exhibit new bulk and surface properties. Many amorphous metals show higher catalytic activity and selectivity than their crystalline counterparts. The freedom from thermodynamic constraints permits use of the amorphous phase as precursor to other unique metastable phases. Co-condensation is a very versatile method for preparing new amorphous metals and other metastable alloys with unusual properties. The direct combination of this method with modern surface characterization and catalytic testing produces a powerful approach to attack the fundamental questions associated with the unique surface properties of amorphous metals. A unique facility which permits preparation, characterization, study of surface reactivity and catalytic testing of amorphous alloys without removing the sample from the pristine environment of the UHV chamber has been developed with State of Texas support. In this proposal they are requesting funds to use this approach to study the surface structure and chemistry of amorphous refractory alloys to provide an understanding of their surface reactivity and basic information needed to ultimately explain unusual catalytic and corrosion properties. This proposal brings together the unique experience of D. L. Cocke in studying alloy surface reactivity with that of D. G. Naugle in the study and preparation of bulk and thin film amorphous metals to attack fundamentally the technologically important surface properties of amorphous materials. They emphasize that the major facilities for this innovative proposal are already in place; consequently, the principal need is for longer term operational funds.