ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] About 100 compositions in the Tl-Ba-Ca-Cu-O system were prepared by reacting T12O3, CaO2/CaCO3, BaO2 and CuO in various proportions at 850-915 °C in air or in sealed gold tubes for 15 min to 3 h. For sealed-tube reactions, CaO2 and BaO2 were used as starting reagents. Powder X-ray diffraction ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/332420a0
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