Experimental Conclust® 
Structural research were conducted using the program for computer analysis of Microscan Jn ve 
picture which enables fast and accurate way to determine geometrical parameters of the structure gant 
and its unique define considering the contents and morphology of the phase SiC [6, 9]. efficent 
The analysis of the non-etched microsections of area about 1 cm? which were mechanically about 15 S 
polished with diamond paste at granularity 1pm has been made with using of microscope Neophot 2 her Le 
at magnification of 200x. With the digital camera CCD coupled with the microscope the picture of diversifica 
the structure was recorded by the program Microscan in format BMP. On such converted picture the volume 2 
point-binary double limited transformation was made and consists in insert two thresholds - upper the manulı 
and lower. Above 
The example of composite structure F3S.20S destined for the analysis is submitted in Fig. 1. pan 
maids 
Reference 
(3)M. Col 
Fig. 1: Microstructure of the F3S.20S composite materials; non-etched state. (5)5. Che 
(6)L. Wo 
The measurement of grain quantity SiC, surface area, circumference, maximum diameter, RE $ 
elongation and other parameters has been made by the Microscan programme. Butter 
The results of these measurements are contained in the table below. 9) K Pie 
Table 3: Selected geometrical parameters SiC. 
Parameter | Value 
Total Area 456966 um’ 
Field Count 844 
Volume Fraction 20,8 % 
Field Area 42-309 pm’ 
Perimeter 23+96 um 
Average Diameter 7+22 pm 
Maximum Diameter 8+30 um 
Feret Diameter (x) 5 +30 um 
Feret Diameter (y) 5+31 pm 
Elongation bo 22 R 
" The elongation is equal to the ratio of maximum diameter to perpendicular diameter with regard to maximum diameter. 
172