Crystal structures strontium titanate

In this chapter, the commonly held belief that the terms ceramic and brittle are synonymous has been shown not to be exactly tenable. Oxide single crystals with the rock-salt structure can be deformed plastically at liquid helium temperatures, while strontium titanate shows an inverse BDT and can be deformed plastically at ambient temperatures and below. Oxides with the fluorite structure can be deformed... 

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