It would also be preferable for the dispersed particles to include at least one oxide selected from {HEAD ~ a group} consisting of {TAIL ~ silicon oxide}, aluminum oxide, zirconium oxide, and titanium oxide 
consisting of
It would also be preferable for the dispersed particles to include at least one oxide selected from { HEAD ~ a group } consisting of { TAIL ~ silicon oxide } , aluminum oxide , zirconium oxide , and titanium oxide
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH