Assertion: silicon carbide's silicon | /r/HasProperty | at least 200 mesh
Facets:
Source sentences:
text: I have made an exhaustive study of the eifect of the particle size of the silicon used in the herein-described process to form silicon nitride-bonded silicon carbide refractories and have found that in order to obtain a satisfactory conversion of the silicon to silicon nitride and thereby obtain an acceptable bonding of the silicon carbide particles with resultant outstanding refractory properties that the silicon must be at least 200 mesh (U. S. Standard sieve) and finer and that unless this limitation as to particle size is recognized and followed a reasonably complete or acceptable degree of conversion to the nitride does not take place as is shown by Table I below.