| 摘要 |
<p>PURPOSE:To attain to enhance the measuring accuracy of breaking strength in a non-destructive state, by calculating the absorption coefficient of a specimen by the rising in temp. in irradiating the specimen, of which the absorption coefficient is unknown, with infrared rays with a specific wavelength while calculating the breaking strength of the specimen from the calculated absorption coefficient. CONSTITUTION:Infrared rays with a wavelength of 7.3mum are allowed to irradiate diamond of which the absorption coefficient to said infrared rays is unknown to raise the temp. of the specific position on the surface of the specimen and this rising in temp. is measured to be compared with the rising in the temp. of the specific position of the specimen, of which the infrared absorption coefficient to the same wavelength is known, by irradiating the same with infrared rays and the absorption coefficient of the specimen, of which the absorption coefficient is unknown, is calculated. Because there is inversely proportional coefficiency to infrared rays with a wavelength of 7.3mum and breaking strength, breaking strength can be calculated on the basis of the calculated absorption coefficient from the graph shown by the drawing. As mentioned above, breaking strength can be accurately calculated in the non-destructive state of diamond.</p> |
