70038-31-2Relevant academic research and scientific papers
Kinetic study of Y, Ba, Cu oxalates and coprecipitated Y-Ba-Cu oxalate
Hsu,Lee,Huang
, p. 295 - 305 (1998)
The kinetics of the decomposition of Y, Ba and Cu oxalates and coprecipitated Y-Ba-Cu oxalate was investigated under a nitrogen atmosphere on the basis of dynamic thermogravimetric data, the average activation energies of the decomposition of Y, Ba and Cu oxalates were obtained from the slopes of the T. Ozawa plot. The average activation energies for the dehydration of these oxalate and coprecipitated Y-Ba-Cu oxalate were also evaluated from the thermogravimetric curves.
Study of a Structural Description of the Endothermic Decompositions Solid 1 yields Solid 2 plus Gas. IV.
Ben Amor,Mutin,Aubry,Courtois
, p. 231 - 241 (2008/10/08)
The X-ray analysis of BaC//2O//4,2H//2O crystals partially transformed into BaC//2O//4,H//2O leads to the specific reticular orientation relationships of the dehydration BaC//2O//4,2H//2O goes to BaC//2O//4,H//2O plus H//2O. Their interpretation has been made by a plane-by-plane comparison of the dihydrate crystal structure with the monohydrate. The principal features of the ionic movements are described; they differ from those which are expected from a simple topological comparison of the structures. With the assumption of a displacive transformation, coherent or semicoherent interfaces seem to be built up from all invariant plane families, as deduced from the X-ray analysis.
