New High Temperature Oxide Fibers

Author(s):  
D. M. Wilson
1993 ◽  
Vol 07 (16n17) ◽  
pp. 3077-3093 ◽  
Author(s):  
A.W. HEWAT

Neutron powder diffraction has been essential for understanding the structures of the new high temperature oxide superconductors because of the difficulty in locating oxygen with X-rays in the presence of heavy metals, especially when single crystals are usually not available. This understanding lead to the discovery of new materials. In this paper we will show how it also sheds light on the crystal chemistry of oxide superconductors—the effects of oxidation/reduction, phase separation, pressure etc.


1999 ◽  
Vol 556 ◽  
Author(s):  
Robert L. Putnam ◽  
Alexandra Navrotsky ◽  
Brian F. Woodfield ◽  
Jennifer L. Shapiro ◽  
Rebecca Stevens ◽  
...  

AbstractThe formation enthalpy, - 3752.3 ± 4.7 kJ·mol−1, of Hf-zirconolite, CaHfTi2O7, was obtained using high temperature oxide-melt solution calorimetry. Combined with heat capacity data obtained using low temperature adiabatic calorimetry we report the heat capacity (Cp) and the standard molar formation energetics (ΔH°f. elements, Δ S°T, and ΔG°f. elements)for Hf-zirconolite from T = 298.15 K to T = 1500 K. Comparison of Hf-zirconolite with Zr-zirconolite is made.


1997 ◽  
Vol 36 (1-4) ◽  
pp. 87-90 ◽  
Author(s):  
Ph. Candelier ◽  
B. Guillaumot ◽  
F. Mondon ◽  
G. Reimbold ◽  
H. Achard ◽  
...  

2020 ◽  
pp. 1-1
Author(s):  
Mykola Abramchuk ◽  
Kristina Lilova ◽  
Tamilarasan Subramani ◽  
Ray Yoo ◽  
Alexandra Navrostky

2008 ◽  
Vol 155 (2) ◽  
pp. H80 ◽  
Author(s):  
K. L. Saenger ◽  
J. P. de Souza ◽  
K. Fogel ◽  
J. A. Ott ◽  
A. Reznicek ◽  
...  

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