The invention discloses a method for testing the
interfacial bonding strength of a
ceramic fiber-reinforced
resin matrix composite material and relates to
ceramic fibers. The method comprises the following steps: bonding the
ceramic fibers to a hard paper frame by virtue of an instant
adhesive, for straightening and solidifying the ceramic fibers; preparing an embedding mold, putting the ceramic fibers and the hard paper frame into the embedding mold, and introducing resin into the embedding mold; after the resin is solidified,
cutting an embedded end together with the embedding mold so as to obtain a sample, and
polishing; when the embedding depth of the sample is lower than 1mm, bonding the embedded end with a primary
cut part by virtue of quick-dry resin after the
polishing process;
burning out two sides of the paper frame at an un-embedded end by virtue of naked
flame, averagely
cutting the upper end of the paper frame according to the quantity of the ceramic fibers, and bonding and reinforcing the paper frame by virtue of a hard
paperboard with area equal to that of the
cut paper frame; firstly fixing the embedded end at a lower clamp of a testing
machine, and then fixing a reinforcing section to an upper clamp of the testing
machine; carrying out a single-filament draw-out experiment; recording each withdrawal force value given by a testing
machine; observing the shape of an withdrawn end, and measuring the maximal withdrawing length of the
single fiber; and calculating the
interfacial bonding strength between the
fiber and the resin.