1991
DOI: 10.1002/crat.2170260405
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Investigations Concerning the Quasi‐binary System V2O5 – Nb2O5

Abstract: the Quasi-binary System V,O, -Nb,O, Dedicated to Professor Ehrenfried,BuTTER on the occasion of his 60th birthdayIn examining the pseudobrnary system V,O, -Nb,O, i t was possible to isolate, by systematic transport reactions, just one stable compound of the mean composition V, .05,Nb8.942025 in addition to the boundary phases, which is In contrast to the data given in the literature. The phase width of this compound is vcry small and within the confidence limits of the analytical method of determination of 0.2… Show more

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Cited by 13 publications
(10 citation statements)
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“…The somewhat higher onset of the melting peak during the first heating might result from a loose packing of the powder sample with consequently poor thermal contact to the crucible wall. Literature data on the melting point of Nb 2 O 5 are largely inconsistent: values of 1465 • C [19], 1479 • C [20], 1491 • C [21] and 1512 • C [22] are published. The melting point observed in this work is within the range defined by the literature.…”
Section: Methodsmentioning
confidence: 99%
“…The somewhat higher onset of the melting peak during the first heating might result from a loose packing of the powder sample with consequently poor thermal contact to the crucible wall. Literature data on the melting point of Nb 2 O 5 are largely inconsistent: values of 1465 • C [19], 1479 • C [20], 1491 • C [21] and 1512 • C [22] are published. The melting point observed in this work is within the range defined by the literature.…”
Section: Methodsmentioning
confidence: 99%
“…The kind of phases formed in V-Nb-O system depends, according to the literature data, on the type of starting substrates, the preparation method and the gas atmosphere in which their synthesis is conducted [3][4][5][6][7][8][9]. A summarizing discussion of the literature data concerning the quasi-binary system Nb 2 O 5 -V 2 O 5 up to 1989 has been reported [6,7].…”
Section: Introductionmentioning
confidence: 99%
“…Crystallizing in a tetragonal system, VNb 9 O 25 melts congruently at 1290ºC [4,6,10]. Most probably it has homogeneity range reaching composition V 3 Nb 17 O 50 [12].…”
Section: Introductionmentioning
confidence: 99%
“…In den vergangenen Jahren w urde dem System V /N b/O w ieder verstärkt A ufm erksam keit zuteil, da eine bedeutende Anzahl ternärer Phasen syn thetisiert werden konnte [1][2][3][4][5][6][7][8][9][10][11], die sehr vielfälti ge strukturelle, elektrische und m agnetische E igen schaften aufweisen.…”
Section: Introductionunclassified
“…4) die Verhältnisse der Sauerstoff koexistenzdrücke der Mischkristalle widerspiegeln.Aufgrund dieser Überlegungen ist es möglich für die MK-Zusammensetzungen in den betreffenden Zwei-und Dreiphasengebieten eine Abschätzung vorzunehmen [25] (s. Tab. III).Aus der Lage der Sauerstoffkoexistenzen und den Ergebnissen der Chemischen Transport-sowie Festkörperexperimente konnten die Koexistenzbe ziehungen im ternären System V/Nb/O unterhalb des quasibinären Schnittes V 0 2 -N b 0, präzisiert werden (s. Abb 6. ).…”
unclassified