RECONSTRUCTIVE PHASE TRANSITIONS OF OXYGEN OCTAHEDRAL STRUCTURES
						
						 
						
													Keywords: crystal chemistry, phase transitions, ferroelectrics, oxide systems 
												Pages: 492-496 						
																					 Abstract 
								Reconstructive phase transitions and their conditions in perovskite, ilmenite, pyrochlore, and other structures were considered on the basis of the experimental structural data on oxide compounds. It is shown that such transitions depend on the pressure, temperature, chemical composition, and defective structure. 
																			                        																														
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