{"title":"会议报告","authors":"Marko Pfeifer, S. Streiffer","doi":"10.4200/jjhg1948.47.403","DOIUrl":null,"url":null,"abstract":"Two investigations of amorphous materials illustrated the value of combining both neutrons and X-rays, one of the themes of the school. In the first, Robert Hart (Indiana University) identified the role of niobium in the partial crystallization of potassium niobate tellurite glasses. In the second, Jacob Urquidi (Argonne National Laboratory, IPNS) found that amorphous ice evolved under pressure from its low-density to high-density amorphous forms through a series of intermediate metastable structures, rather than through a single first-order phase transition as earlier reported.","PeriodicalId":22600,"journal":{"name":"The Journal of Automatic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1999-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Meeting Reports\",\"authors\":\"Marko Pfeifer, S. Streiffer\",\"doi\":\"10.4200/jjhg1948.47.403\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Two investigations of amorphous materials illustrated the value of combining both neutrons and X-rays, one of the themes of the school. In the first, Robert Hart (Indiana University) identified the role of niobium in the partial crystallization of potassium niobate tellurite glasses. In the second, Jacob Urquidi (Argonne National Laboratory, IPNS) found that amorphous ice evolved under pressure from its low-density to high-density amorphous forms through a series of intermediate metastable structures, rather than through a single first-order phase transition as earlier reported.\",\"PeriodicalId\":22600,\"journal\":{\"name\":\"The Journal of Automatic Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1999-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Journal of Automatic Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4200/jjhg1948.47.403\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Automatic Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4200/jjhg1948.47.403","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
对非晶材料的两项研究说明了中子和x射线结合的价值,这是该学派的主题之一。在第一篇论文中,Robert Hart(印第安纳大学)确定了铌在铌酸钾碲酸盐玻璃的部分结晶中的作用。在第二篇论文中,Jacob Urquidi (Argonne National Laboratory, IPNS)发现,非晶态冰在压力下通过一系列中间亚稳结构从低密度到高密度的非晶态演变,而不是像之前报道的那样通过单一的一阶相变。
Two investigations of amorphous materials illustrated the value of combining both neutrons and X-rays, one of the themes of the school. In the first, Robert Hart (Indiana University) identified the role of niobium in the partial crystallization of potassium niobate tellurite glasses. In the second, Jacob Urquidi (Argonne National Laboratory, IPNS) found that amorphous ice evolved under pressure from its low-density to high-density amorphous forms through a series of intermediate metastable structures, rather than through a single first-order phase transition as earlier reported.