The ceramic contains {TAIL ~ a titanate} from the titanate powder, the acceptor additive, and {HEAD ~ the optional sintering aids} and donor additive 
The ceramic contains { TAIL ~ a titanate } from the titanate powder , the acceptor additive , and { HEAD ~ the optional sintering aids } and donor additive
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH