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Author: jun-feng song

Displaying records 121 to 124.
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121. Microform Calibrations in Surface Metrology
Published: 1/1/1994
Authors: Jun-Feng Song, F Rudder, Theodore Vincent Vorburger, A Hartman, Brian R Scace, J Smith
Abstract: Microform calibrations include the measurement of complex profile forms and position errors of micrometer scale in combination with the measurement of deviations from a specified profile and surface texture of profile segments. Tolerances on the prof ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902015

122. The Geometric Characterization of Rockwell Diamond Indenters
Published: 1/1/1994
Authors: Jun-Feng Song, F Rudder, Theodore Vincent Vorburger, A Hartman, Brian R Scace, J Smith
Abstract: By using a stylus instrument, a series of calibration and check standards, and calibration and uncertainty calculation procedures, we have calibrated Rockwell diamond indenters with a traceability to fundamental measurements. The combined measurement ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820714

123. Assessment of Error Sources in Rockwell Hardness Measurements
Published: Date unknown
Authors: Walter S Liggett Jr, Samuel Rea Low III, David J Pitchure, Jun-Feng Song
Abstract: In the use of hardness test blocks, the uncertainty due to block non-uniformity can be reduced if one is willing to make measurements at specified locations on the blocks. Statistical methods for achieving this reduction are explained in this paper. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151747

124. Establishing a World-Wide Unified Rockwell Hardness Scale Using Standard Diamond Indenters
Published: Date unknown
Authors: S Desogus, A Germak, H Ishida, T Polzin, H Yang, Jun-Feng Song, Samuel Rea Low III, David J Pitchure
Abstract: Recently developed microform measurement techniques have reduced the measurement uncertainties in the geometry of Rockwell diamond indenters. It is now possible to establish standard grade Rockwell diamond indenters characterized by high geometry uni ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822526



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