Determination of Young's Modulus by Knoop Indentation Measurements

摘要

Marshall, Noma and Evans (1) proposed a simple method for measurements of Young's modulus by the Knoop identation technique. In order to obtain reliable data by this technique, however, it is necessary that the indenter is very carefully aligned in order to obtain perfectly symmetrical impressions. In the present work a correction method is proposed by which accurate results can be obtained even on asymmetrical impressions which is usually obtained. By measurements on various zirconia toughened ceramic materials it is demonstrated that the E-values obtained using this correction method are very similar to literature data determined by other techniques. (ERA citation 14:011387)