抄録
Magnesia whiskers grown via vapor phase reaction were studied by means of X-ray topography, and optical and electron microscopies. The results obtained were as follows:
1) No internal defects were detected by X-ray topography, but contrast changes were found at tips of the whiskers. There contrast changes may be due to the inclusion of impurities which take part in the growth.
2) Triangular closed growth hills were found on {111} surface of a [112] whisker.
3) The surfaces of whiskers having diameters smaller or larger than a few micron were bounded by smooth or heavily stepped faces, respectively. Mechanical properties may be controlled by the surface structure as well as the internal structure.
© The Ceramic Society of Japan