As with the refractory metal in the first coating, the metal, if present, may be in the form of {TAIL ~ particulate metal} or {HEAD ~ atomically dispersed metal} or both 
As with the refractory metal in the first coating , the metal , if present , may be in the form of { TAIL ~ particulate metal } or { HEAD ~ atomically dispersed metal } or both
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH