Assertion: boric acid | /r/CapableOf | form thick layer
Facets:
value: very
type: DEGREE
value: on the carbon particles
type: LOCATION
Source sentences:
text: We believe the reaction could not occur with this large amount of boric acid for the following reasons: ( ) After the raw materials are mixed and then dried, the boric acid (or melted dehydrated boron oxide) forms a very thick layer on the carbon particles, hindering the mass diffusion and, hence, the full formation of boron carbide.