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Final Stage Sintering of ThO2

 

作者: P. J. JORGENSEN,   W. G. SCHMIDT,  

 

期刊: Journal of the American Ceramic Society  （WILEY Available online 1970）
卷期: Volume 53, issue 1  

页码: 24-27

 

ISSN:0002-7820

 

年代: 1970

 

DOI:10.1111/j.1151-2916.1970.tb11992.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

The addition of CaO to ThO2inhibits discontinuous grain growth and allows sintering to proceed to theoretical density by maintaining a high diffusion flux of vacancies from the pores to the grain boundaries. The optimum amount of CaO added is 2.0 mol%, which exceeds the solid solubility limit. A model of second‐phase inclusions impeding grain boundary motion was used to explain the result

 

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