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Technology

Ceria-doped zirconia is one ceramic material investigated. The material is made into a powder through a co-precipitation technique. The powder is uniaxially pressed into disks and then sintered at 1500oC. The grain size is proportional to the sintering time (i.e. longer sintering time leads to larger grains). After sintering, single crystal pillars are made using focused ion beam (FIB) milling on individual grains. The resulting single crystal materials are able to undergo the phase transformations without cracking.