US-Brazil Cooperative Research on Characterization of Mixed Oxide Films

该奖项支持混合动力汽车的合作研究 氧化物超导膜， Emile Schweikert教授和D.L.科克在德克萨斯州 A M大学和教授巴罗斯莱特，巴普蒂斯塔， Patnaik和Silveira在天主教 巴西里约热内卢大学。 研究 将重点介绍几种现代 分析技术来表征掺杂 阳极膜，即，非晶上生长的混合氧化物 金属和合金。 将被改进的技术 为这项工作而开发的包括卢瑟福 背散射光谱与核反应 分析（NRA）。 此外，表面表征 通过粒子诱导质谱将是 开发 这些技术将用于确定 这些膜的厚度和组成 显示出新颖的催化、耐腐蚀性或 超导性能 这项工作延续了一个非常富有成效的合作 巴西和美国科学家之间的合作设施 这两个群体的专业知识，特别是 在新技术的发展中，RBS和NRA， 以及样品制备和分析 德州A M的支持 德州的学生将 包括在Schweikert的表面和薄的研究， 氧化膜的层表征， Cocke的样品制备和分析。

This award supports cooperative research on mixed oxide superconducting films to be carried out by Professors Emile Schweikert and D.L. Cocke at Texas A&M University and Professors Barros Leite, Baptista, Patnaik and Silveira at the Pontifical Catholic University in Rio de Janeiro, Brazil. The research will focus on the application of several modern analytical techniques to the characterization of doped anodic films, i.e., mixed oxides grown on amorphous metals and alloys. Techniques which will be refined and developed for this work include Rutherford backscattering spectrometry (RBS) and nuclear reaction analysis (NRA). In addition, surface characterization by particle induced mass spectrometry will be developed. These techniques will be used to determine the thickness and composition of these films that exhibit novel catalytic, resistance to corrosion or superconducting properties. This work continues a very productive collaboration between Brazilian and U.S. scientists. The facilities and expertise of both groups contribute, particularly in the development of the new techniques, RBS and NRA, in Brazil and the sample preparation and analytical support at Texas A&M. Students at Texas will be included in Schweikert's study of the surface and thin layer characterization of the oxide films and in Cocke's sample preparation and analysis.