Russian Journal of Inorganic Chemistry, Tập 42,Số phát hành 9-12British Library Lending Division with the cooperation of the Royal Society of Chemistry, 1997 |
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Trang 1391
... shows the evolution of the 27 Al NMR spectra with temperature . At 504 ° C , the spectrum shows a signal at 1670 ± 5 ppm of the a phase and a strong signal at 1550 ± 5 ppm , which we assigned to the intermetallic compound LiAl3 ( a ...
... shows the evolution of the 27 Al NMR spectra with temperature . At 504 ° C , the spectrum shows a signal at 1670 ± 5 ppm of the a phase and a strong signal at 1550 ± 5 ppm , which we assigned to the intermetallic compound LiAl3 ( a ...
Trang 1394
... shows the kinetic dependences of the con- tent of the a ' , 8 , and y phases in the LiH - Al system at r = 4. Note that over the temperature range 615-650 ° C , the spectra show two narrow signals at 389 and 422 ppm whose intensities ...
... shows the kinetic dependences of the con- tent of the a ' , 8 , and y phases in the LiH - Al system at r = 4. Note that over the temperature range 615-650 ° C , the spectra show two narrow signals at 389 and 422 ppm whose intensities ...
Trang 1536
... shows two broadened signals at 8p of −22.6 ( 80 % ) and indicate the retention of the phosphorane structure , and -26.2 ( 20 % ) ppm . High - field positions of the signals the absence of ' JP.H is evidence for the formation of the ...
... shows two broadened signals at 8p of −22.6 ( 80 % ) and indicate the retention of the phosphorane structure , and -26.2 ( 20 % ) ppm . High - field positions of the signals the absence of ' JP.H is evidence for the formation of the ...
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Vol 42 No 9 | 1283 |
HighPurity Calcium Hydroxylapatite through Alkoxides LIBRARY | 1292 |
Synthesis and Crystal Structure | 1299 |
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