The relationships between the microstructure,the composition,the friction temperature andthe form of a new kind of friction materialwhich is a glass fibre resin
The multiple scattering theory has been apowerful tool in determining the effective prop-erties of heterogeneous materials.In this pa-per,a simple relationship
According to the theory of crystal field, theexisting state of chromium ions in β-C<sub>2</sub>S was studiedwith optical spectra and EPR. The energy levels ofc
In this paper the characteristics of glassformation and structure of non-oxide glasses have beensummarized and some basic points have been discussed.Themain poi