Electropolishing of polycrystalline YBa2Cu3O7-δ to meet the need for sharp needle geometry
Hu, Q.H. & Alarco, J.A. (1992) Electropolishing of polycrystalline YBa2Cu3O7-δ to meet the need for sharp needle geometry. Surface Science, 266(1-3), pp. 538-544.
An electropolishing method has been developed for preparing sharp needles from polycrystalline YBa2Cu3O7-δ by modifying a recipe for TEM specimen preparation. The method is characterized by a polishing temperature of below 0°C, a non-acidic electrolyt and an even removal of the constituent phases. An approach was employed of combining I-V measurements for polishing process and microscopical observation of surface morphology in finding optimum polishing conditions. TEM evidenced that no preferential attack appeared to grain boundaries. X-ray diffractometry and electron diffraction implied that no change in oxygen content occurred during electropolishing. The sharpness of the tip was examined by field-ion microscopy.
Impact and interest:
Citation counts are sourced monthly from and citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
|Item Type:||Journal Article|
|Additional Information:||Cited By (since 1996):2
Export Date: 5 November 2013
Language of Original Document: English
Correspondence Address: Hu, Q.-H.; Department of Physics, Chalmers University of Technology, S-412 96 Göteborg, Sweden
|Keywords:||Copper Oxides--Microscopic Examination, Microscopes, Ion--Field Emission, Microscopic Examination--Specimen Preparation, Microscopic Examination--Transmission Electron Microscopy, Polishing--Electrolytic, Field Ion Microscopy, Needle Crystal Preparation, Oxide Crystal Electropolishing, Superconducting Copper Oxides, X-Ray Diffractometry, Yttrium Barium Cuprates, High Temperature Superconductors|
|Divisions:||Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||07 Nov 2013 01:18|
|Last Modified:||07 Nov 2013 01:18|
Repository Staff Only: item control page