(Ba1-x Prx )Ti1-x/4 O3 陶瓷固溶度及位占据的研究
  
  					 
  					  										
						季虑,路大勇 
					 
															
						吉林化工学院 材料科学与工程研究中心
  
					 
										
						 
					 
   										
    						Study on Solid Solubility and Site Occupations in (Ba1-x Prx )Ti1-x/4 O3  Ceramics
  
  					 
  					  					  					
						JI Lv, LU Dayong 
					 
														
				
				
					
						
							
								
									
										
								            
                        					 
												
													
													    
													    	
									 
								 
								
													
													
													    
													    		                            						                            																	    摘要  
	采用固相反应法制备了(Ba1-x Prx )Ti1-x/4 O3 (x = 0.10-0.20)(BPT)的陶瓷。由X射线衍射(XRD)和电子顺磁共振(EPR)技术研究了BPT陶瓷的固溶度及Pr离子的位占据情况。结果表明: BPT陶瓷的固溶度为x = 0.17,且在固溶限制范围内BPT具有单相立方钙钛矿结构;Pr离子支配性地占据Ba位。
 
																										     
													    
													    	
															 
														 
												  		 
												         
												        														
															关键词:  
																																																																
	镨掺杂钛酸钡  
																																																																	X射线衍射  
																																																																	电子顺磁共振  
																																																																	固溶度  
																																																																	位占据
  
																																  
															 
														 
																																										
															Abstract:  
	The solid-state reaction method was used to prepare (Ba1-x Prx )Ti1-x/4 O3 (x = 0.10-0.20) (BPT) ceramics. The solid solubility and site occupations of Pr ions in BPT were investigated using X-ray diffraction (XRD) and electron paramagnetic resonance (EPR) techniques. The results indicate that the solubility limit is x = 0.17, within which BPT ceramics exhibit a single-phase cubic perovskite structure. Pr ions are substituted predominantly for Ba-sites.
 
														 
																																										
															Key words:  
																																																	
	pr-doped BaTiO3  
																	  																																		X-ray diffraction 
																	  																																		electron paramagnetic resonance 
																	  																																		solid solubility 
																	  																																		site occupations
 
																																																 
														 
																												
														
															
															        
																    
																    
																																	出版日期:   2019-03-25
															        
																																	发布日期:   2019-03-25
															    															        
															    																	整期出版日期:   2019-03-25
															    															 
														 
														 														
															
																
															 
														 
																																									    																												
														
																												
														
													
													
													
													
													
													
												 
												
																																	            												
											
														
															
																
																	
																																																																																																																						
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