TY - JOUR
AU - Milligan, W., O.
AB - Abstract Electron microscopy, electron diffraction and x-ray analysis have been used to study hydroxide precipitates and colloidal solutions of tetravalent plutonium. The results showed that the freshly precipitated material consisted of small, primary particles that are essentially amorphous. After sufficient aging in an aqueous medium, the material became crystalline. Diffraction patterns obtained from the crystalline samples corresponded to the cubic PuO2 lattice. Crystallites up to 20A in diameter formed in precipitates that were aged in water at 95°. Colloidal solutions of these small particles were obtained by peptizing the precipitates in dilute HNO3. To obtain sols with crystallites up to 100A in diameter, it was necessary to use a solid-state heating step at 250°. The behavior of plutonium is analogous to that of hydrous thoria. As with thoria, there was no indication of a definite, crystalline hydroxide, such as the hypothetical Pu(OH)4. This content is only available as a PDF. Author notes *Operated by Union Carbide Corporation for the U.S. Atomic Energy Commission. +Present Address: Alva Research Corp., Alva, Okla, U.S.A. #Mail Address: The Robert A. Welch Foundation, 2010 Bank of the Southwest Building, Houston, Texas, 77002, U.S.A. © Oxford University Press
TI - Aging of Hydrous Plutonium Dioxide
JF - Journal of Electron Microscopy
DO - 10.1093/oxfordjournals.jmicro.a049763
DA - 1971-01-01
UR - https://www.deepdyve.com/lp/oxford-university-press/aging-of-hydrous-plutonium-dioxide-Yugm3Qpi7T
SP - 8
EP - 16
VL - 20
IS - 1
DP - DeepDyve
ER -