5 documents found, page 1 of 1
Phase Characterization of Lead Zirconate Titanate Obtained from Organic Solutio...
Zaghete, Maria A.; Santos, Carlos O. Paiva; Varela, José A.; Longo, Elson; Mascarenhas, Yvonne P.Made available in DSpace on 2022-04-29T08:45:01Z (GMT). No. of bitstreams: 0 Previous issue date: 1992-01-01; Lead zirconate titanate (PZT) with several Zr/Ti ratios was prepared by the organic solution of citrates of the respective cations. The Rietveld method was applied to perform quantitative analysis of the coexisting phases. The ratio of tetragonal/rhombohedral phases increased with calcination temperatur...
Effect of the Addition of Potassium or Lithium on the Columbite Precursor Micro...
Cavalheiro, Alberto A.; Zaghete, Maria A.; Paiva-santos, Carlos O. [UNESP]; Varela, José A.Made available in DSpace on 2021-07-14T10:47:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2002-10. Added 1 bitstream(s) on 2021-07-14T11:38:21Z : No. of bitstreams: 1 S1516-14392002000400002.pdf: 633607 bytes, checksum: 1de72f745aefeae9b402a7edeab61040 (MD5); Pechini method has been used to synthesize MN powders with stoichiometric control. By this method, K and Li-doped MN in the range from 0.1 to 5.0 ...
Correlation between photoluminescence and structural defects in Ca1+x Cu3-x Ti4...
Varela, José A.
Hierarchical assembly of CaMo'O IND.4' nano-octahedrons and their photoluminesc...
Varela, José A.
The role of oxygen vacancy in the photoluminescence property at room temperatur...
Varela, José A.