Thus, xylene in the coating film is vaporized, and Al3 and B3 are thermally decomposed to form {HEAD ~ a jointing material} composed of amorphous or γ layer alumina and {TAIL ~ amorphous boron oxide}  
Thus , xylene in the coating film is vaporized , and Al3 and B3 are thermally decomposed to form { HEAD ~ a jointing material } composed of amorphous or γ layer alumina and { TAIL ~ amorphous boron oxide }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH