アルミニウム研削面からのエキソエレクトロン放射

Abstract

The glow-curve characteristics (25-239°C) of photostimulated exoelectron emission for aluminium surface ground using a surface grinding machine have been examined. The intensity of emission for the surface ground with WA (Al2O3) grinding wheels (grain size, 60 and 120) was much larger than that for GC (SiC) wheels (grain size, 60 and 120), and the former exhibited two peaks of the emission intensity at about 100 and 200°C and the latter only one peak at about 100°C. The surface for WA wheel of smaller grain size emitted more electrons, but in the case of GC wheels the difference in grain size had little effect. The number of electrons emitted for upward grinding was larger than that for downward grinding with the exception of the case of WA 120 grinding wheel. When the photostimulation was stopped during measuring the emission, the emission intensity in a lower temperature region remarkably decreased particularly in the case of the surface ground with GC grinding wheels. With the aid of exoelectron emission, the electronic property of ground metal surface may be revealed.