Publication details
Experimentální studium morfologických, objemových a barevných změn u pálených kostí tura domácího
| Title in English | Experimental study of morphology, volume and colour changes in burned bones of bovine |
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| Authors | |
| Year of publication | 2015 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | In the bones occurs many changes in micromorphology, color and volume, when exposed to burning.These changes were observed at 300, 500, 550, 600 and 700 ° C. Changes in the morphology of periosteal bone edges were examined by electron Jeol JSM-6490LV magnification 100-2000x. Volume changes were detected by measuring the 3-D scanner before and after burning of samples. In purpose of colorimetric measurements was used spectrophotometer X-Rite. Micromorphology is gradually changed so that the collagen fibers disappear, the bone surface cracks into segments and finally produces scales and froth structure. Volume changes are initially in the range of a few percent (5-7%), but at higher temperatures there is a loss of up to 25% at 700 ° C and a firing time of 12 hours.The color of samples varies from black (300 ° C) through gray (500-600 ° C) white (700 ° C). Depending on the firing temperature most important changes has a luminance (L), with a clear shift towards white. |