Ferrity-khromity (Russian, Paperback)


Khimicheskiy sostav soedineniy so strukturoy shpineli mozhet byt' opisan kak oksid dvukhvalentnogo - oksid trekhvalentnogo metallov. V ikh elementarnoy yacheyke soderzhitsya 8 takikh formul'nykh edinits. Nekotorye iz shpinel'nykh sistem interesny svoey osobennost'yu: na fazovykh T-kh diagrammakh oni imeyut osobuyu tochku, v kotoroy narushaetsya pravilo faz Gibbsa. V okrestnosti etoy tochki nablyudayutsya anomalii razlichnykh fizicheskikh i khimicheskikh svoystv. V kristallakh, soderzhashchikh kationy perekhodnykh elementov v orbital'no vyrozhdennykh sostoyaniyakh v dostatochnom kolichestve, pri snyatii vyrozhdeniya proiskhodit spontannoe ponizhenie simmetrii koordinatsionnogo poliedra (kooperativnyy effekt Yana-Tellera - strukturnyy fazovyy perekhod, soprovozhdayushchiysya deformatsiey vsego kristalla). Ves'ma sushchestvenno, chto obrazovanie nizkosimmetrichnykh modifikatsiy shpineli soprovozhdaetsya spontannym poyavleniem anomal'nykh fizicheskikh i khimicheskikh svoystv. V monografii rassmotreny sposoby polucheniya, struktura i svoystva slozhnykh oksidnykh sistem na osnove ferritov i khromitov nekotorykh elementov (Fe, Co, Ni, Cu, Zn). Vse oni soderzhat kationy perekhodnykh metallov, chast' iz kotorykh - yan-tellerovskie.

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Khimicheskiy sostav soedineniy so strukturoy shpineli mozhet byt' opisan kak oksid dvukhvalentnogo - oksid trekhvalentnogo metallov. V ikh elementarnoy yacheyke soderzhitsya 8 takikh formul'nykh edinits. Nekotorye iz shpinel'nykh sistem interesny svoey osobennost'yu: na fazovykh T-kh diagrammakh oni imeyut osobuyu tochku, v kotoroy narushaetsya pravilo faz Gibbsa. V okrestnosti etoy tochki nablyudayutsya anomalii razlichnykh fizicheskikh i khimicheskikh svoystv. V kristallakh, soderzhashchikh kationy perekhodnykh elementov v orbital'no vyrozhdennykh sostoyaniyakh v dostatochnom kolichestve, pri snyatii vyrozhdeniya proiskhodit spontannoe ponizhenie simmetrii koordinatsionnogo poliedra (kooperativnyy effekt Yana-Tellera - strukturnyy fazovyy perekhod, soprovozhdayushchiysya deformatsiey vsego kristalla). Ves'ma sushchestvenno, chto obrazovanie nizkosimmetrichnykh modifikatsiy shpineli soprovozhdaetsya spontannym poyavleniem anomal'nykh fizicheskikh i khimicheskikh svoystv. V monografii rassmotreny sposoby polucheniya, struktura i svoystva slozhnykh oksidnykh sistem na osnove ferritov i khromitov nekotorykh elementov (Fe, Co, Ni, Cu, Zn). Vse oni soderzhat kationy perekhodnykh metallov, chast' iz kotorykh - yan-tellerovskie.

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Product Details

General

Imprint

Lap Lambert Academic Publishing

Country of origin

United States

Release date

2013

Availability

Expected to ship within 10 - 15 working days

First published

2013

Authors

Dimensions

229 x 152 x 7mm (L x W x T)

Format

Paperback - Trade

Pages

120

ISBN-13

978-3-659-32219-8

Barcode

9783659322198

Languages

value

Categories

LSN

3-659-32219-9



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