TY - CONF A1 - Beck, Uwe A1 - Hertwig, Andreas A1 - Hielscher, Stefan A1 - Weise, Matthias T1 - Characterization of Materials: Uncertainty Budgets in Measurement and Testing N2 - The comprehensive knowledge of material properties as engineered and the material behavior in use is of huge importance for the functionality and reliability of processes and products. Hence, the accurate determination of material properties is a prerequisite for the applicability of a given material. Nowadays, macroscopic product features are originated by material properties on the microscopic and nanoscopic scale. This is a general challenge for uncertainty budgets in measurement and testing based on a conformity assesment. Testing labs accreditated according to DIN EN ISO/IEC 17025 have to meet these demands. This paper focuses on the measurement of physical quantities (measurand with value and unit) and on the testing of material properties (qualitative, semi-quantitative or quantitative characteristics) of solid state materials. For both measurement and testing, the expression of uncertainty according to GUM is essential. Regarding the object/sample one has to subdivide in surface and bulk features, from the measurement/testing point of view destructive vs. nondestructive procedures have to be distinguished. Moreover, direct mesurement/testing and model-based determination of quantities/properties of interest require different approaches regarding the expression of uncertainty. For surface quantities and properties as discussed here, further considerations have to be made with respect to localized (lateral extension, native or artificial) or stratified (homogeneity and isotropy) material features vs. mapping (integration area) and imaging (lateral resolution and field of analysis) specifications of the measurement/testing procedure. The concept of uncertainty budgets and the expression of uncertainty is introduced and discussed in more detail for the nondestructive model-based determination of thickness by spectroscopic ellipsometry (SE), the destructive determination of adhesion by means of centrifugal adhesion testing (CAT). It is shown that the expression of uncertainty for these examples and real materials requires different approaches resulting in either quantitity values with unit or qualitative/quantititative attributes with calculated/estimated uncertainties in agreement with GUM. T2 - The 4th International Conference on Competitive Materials and Technology Processes, ic-cmtp4, 2016 CY - Miskolc-Lillafüred, Hungary DA - 03.10.2016 KW - Measurement and testing KW - Uncertainty budgets KW - Expression of uncertainty PY - 2016 AN - OPUS4-37841 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -