A)- The engineering ceramic: zirconium dioxide (zirconia, ZrO2) contains Zr4+ ions and O2- ions. A sample of zirconia is doped with gadolinium Gd3+ ions. (Gd3+ ions are similar in size to Zr4+ ions.) What two types of defects in principle would result? Would the result of this doping be considered single-phase or two-phase material? You must give your reason(s).

B)- A sample of zirconia is doped with niobium Nb5+ ions. (Nb5+ ions are also similar in size to Zr4+ ions.) What two types of defects in principle would now result? Would the result of this doping be considered singlephase or two-phase material? You must give your reason(s).

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ZrO 2 has zn 4 and 0 2 ions Doping with Gd 3 resuit in formation of complex did solution Host ZrO 2 ... View the full answer