Tantalum doping in HfO2: orthorhombic phase formation at ambient conditions and change in path of pressure-induced structural evolution. Issue 3 (2nd July 2020)

• Record Type: Journal Article
• Authors: Pathak, S.; Das, P.; Sahu, M.; Pandey, K. L.; Mandal, G.; Patkare, G. R.
• Is Part Of: High pressure research. Volume 40:Issue 3(2020)
• Page Start: 434
• Page End: 443
• Publication Date: 2020-07-02
• Subjects: Structural phase transformation -- high pressure -- X-ray diffraction -- synchrotron radiation -- crystal structure; High pressure (Science) -- Periodicals; High pressure (Technology) -- Periodicals; 536.41
• DOI: 10.1080/08957959.2020.1765338
• Languages: English
• ISSNs: 0895-7959

Abstract

ABSTRACT: A systematic study of orthorhombic phase formation at ambient conditions beyond a critical concentration of dopant Tantalum (Ta) in HfO 2 is reported. The effect on the path of structural evolution due to Ta doping in HfO 2 was also investigated. Studies on Ta-doped HfO 2 samples and their path of structural evolution under compression have significant implications for materials undergoing β -decay. The effect of continual doping due to β -decay from geophysical point of view is discussed.