期刊
JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY
卷 114, 期 1, 页码 37-55出版社
NATL INST STANDARDS & TECHNOLOGY-NIST
DOI: 10.6028/jres.114.004
关键词
bismuth telluride; consensus mean curve; Constantan; functional data analysis; Ridge regression modeling; round-robin; Seebeck coefficient; Standard Reference Material; thermoelectric
In an effort to develop a Standard Reference Material (SRM (TM)) for Seebeck coefficient, we have conducted a round-robin measurement survey of two candidate materials-undoped Bi2Te3 and Constantan (55 % Cu and 45 % Ni alloy). Measurements were performed in two rounds by twelve laboratories involved in active thermoelectric research using a number of different commercial and custom-built measurement systems and techniques. In this paper we report the detailed statistical analyses on the interlaboratory measurement results and the statistical methodology for analysis of irregularly sampled measurement curves in the interlaboratory study setting. Based on these results, we have selected Bi2Te3 as the prototype standard material. Once available, this SRM will be useful for future interlaboratory data comparison and instrument calibrations.
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