Russian Journal of Inorganic Chemistry, Tập 39,Số phát hành 5-8British Library Lending Division with the cooperation of the Royal Society of Chemistry, 1994 |
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Trang 688
... eutectic ceramics after sintering in O2 at 950 ° C for 3 h Eutectic content , wt % Phase composition 0 YBa2Cu3O + Y2BaCuO , ( traces ) YBa2Cu3O + Y2BaCuO , 10 YBa2Cu3Oy 20 YB12CuзO , + BaCuO2 ( negligibly small quantity ) 502 B 5.49 ...
... eutectic ceramics after sintering in O2 at 950 ° C for 3 h Eutectic content , wt % Phase composition 0 YBa2Cu3O + Y2BaCuO , ( traces ) YBa2Cu3O + Y2BaCuO , 10 YBa2Cu3Oy 20 YB12CuзO , + BaCuO2 ( negligibly small quantity ) 502 B 5.49 ...
Trang 689
Fig . 2a ) , barely changed with increasing eutectic con- tent . Only in the ceramics with 20 wt % eutectic , the Tel value decreased to 89.5 K. The relative volume content f of the high - temperature superconducting phase was ...
Fig . 2a ) , barely changed with increasing eutectic con- tent . Only in the ceramics with 20 wt % eutectic , the Tel value decreased to 89.5 K. The relative volume content f of the high - temperature superconducting phase was ...
Trang 690
... eutectic ceramics . Sintering time 3 h . The eutectic content , wt % : ( 1 ) 0 , ( 2 ) 5 , ( 3 ) 10 , ( 4 ) 20 . 850-1000 ° C . Whatever the eutectic content , the Tel value decreased from ~ 95 to 92-93 K with increasing sintering ...
... eutectic ceramics . Sintering time 3 h . The eutectic content , wt % : ( 1 ) 0 , ( 2 ) 5 , ( 3 ) 10 , ( 4 ) 20 . 850-1000 ° C . Whatever the eutectic content , the Tel value decreased from ~ 95 to 92-93 K with increasing sintering ...
Nội dung
HighTemperature Superconductors | 675 |
LiquidPhase Sintering of Superconducting YBa₂Cu3O Ceramics | 687 |
Synthesis and Properties of Inorganic Compounds | 693 |
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2H₂O 3H₂O 4H₂O absorption bands Academy of Sciences acid Akad analysis angles anion aqueous solutions calcd calculated cations ceramics Chem chemical cm-¹ composition concentration COORDINATION COMPOUNDS copper(II crystal curve decomposition decrease determined dimethyl sulfoxide DMSO electronic absorption English Translation Copyright enthalpy equilibrium eutectic exhibit experimental glyoxime H₂O Hayka/Interperiodica Publishing Russia heat hydrogen bonds increase Inorg Inorganic Chemistry interaction ions Khim kJ/mol ligand MAHK Hayka/Interperiodica Publishing melt metal method mixture mol/l molecules Moscow mutual systems Neorg nH₂O nickel(II nitrate nitrogen atoms observed obtained Original Russian Text oxide oxygen atoms parameters Phys physicochemical platinum plex precipitate properties protons Raman range ratio reaction region Russia Russia Received Russian Academy Russian Text Copyright salts samples shift sodium solid solutions solubility sorption space group spectrum spiropyran structure studied superconducting synthesis Table temperature thermal tion titanium transition values X-ray diffraction