Cu11In9 - Revised crystal structure and its (physicochemical) relation to Cu10In7
(2015) In Journal of Alloys and Compounds 638. p.393-397- Abstract
- The literature data on the region at about 55-60 at.% Cu in the Cu-In phase diagram is somewhat confusing. With Cu10In7 and Cu11In9, two intermetallic compounds have been reported whose structures are alike and both are reported to be stable over a similar temperature range. Here, we show that Cu10In7 can be synthesized and characterized in agreement with the study by Piao and Lidin. Moreover, thermoanalytic methods (TA) reveal that Cu11In9, ht-Cu7In4 (A-phase) and In are formed upon cooling after re-melting of Cu10In7 without further heat treatments. For comparison, Cu11In9 has been synthesized using the original method by Rajasekharan and Schubert. Applying the same TA program to Cu11In9 the result from Cu10In7 was reproduced. Single... (More)
- The literature data on the region at about 55-60 at.% Cu in the Cu-In phase diagram is somewhat confusing. With Cu10In7 and Cu11In9, two intermetallic compounds have been reported whose structures are alike and both are reported to be stable over a similar temperature range. Here, we show that Cu10In7 can be synthesized and characterized in agreement with the study by Piao and Lidin. Moreover, thermoanalytic methods (TA) reveal that Cu11In9, ht-Cu7In4 (A-phase) and In are formed upon cooling after re-melting of Cu10In7 without further heat treatments. For comparison, Cu11In9 has been synthesized using the original method by Rajasekharan and Schubert. Applying the same TA program to Cu11In9 the result from Cu10In7 was reproduced. Single crystal X-ray diffraction experiments prove that the reported crystal structure analysis of Cu11In9 is incomplete. We find a unit cell in agreement with that reported (as a = 12.8212(6)angstrom, b = 4.3548(5) angstrom, c = 7.3574(3)angstrom, beta = 125.523(1)degrees), but the structure is somewhat different containing an additional, partially occupied position and a different elemental balance on one mixed position. (C) 2015 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7432897
- author
- Müller, Carola LU and Lidin, Sven LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Intermetallics, Cu-In phase diagram, Crystal structure
- in
- Journal of Alloys and Compounds
- volume
- 638
- pages
- 393 - 397
- publisher
- Elsevier
- external identifiers
-
- wos:000353377500059
- scopus:84931287810
- ISSN
- 0925-8388
- DOI
- 10.1016/j.jallcom.2015.03.106
- language
- English
- LU publication?
- yes
- id
- 32b86ad5-37eb-460f-932b-7597bcc0e642 (old id 7432897)
- date added to LUP
- 2016-04-01 13:27:51
- date last changed
- 2022-01-27 19:19:47
@article{32b86ad5-37eb-460f-932b-7597bcc0e642,
abstract = {{The literature data on the region at about 55-60 at.% Cu in the Cu-In phase diagram is somewhat confusing. With Cu10In7 and Cu11In9, two intermetallic compounds have been reported whose structures are alike and both are reported to be stable over a similar temperature range. Here, we show that Cu10In7 can be synthesized and characterized in agreement with the study by Piao and Lidin. Moreover, thermoanalytic methods (TA) reveal that Cu11In9, ht-Cu7In4 (A-phase) and In are formed upon cooling after re-melting of Cu10In7 without further heat treatments. For comparison, Cu11In9 has been synthesized using the original method by Rajasekharan and Schubert. Applying the same TA program to Cu11In9 the result from Cu10In7 was reproduced. Single crystal X-ray diffraction experiments prove that the reported crystal structure analysis of Cu11In9 is incomplete. We find a unit cell in agreement with that reported (as a = 12.8212(6)angstrom, b = 4.3548(5) angstrom, c = 7.3574(3)angstrom, beta = 125.523(1)degrees), but the structure is somewhat different containing an additional, partially occupied position and a different elemental balance on one mixed position. (C) 2015 Elsevier B.V. All rights reserved.}},
author = {{Müller, Carola and Lidin, Sven}},
issn = {{0925-8388}},
keywords = {{Intermetallics; Cu-In phase diagram; Crystal structure}},
language = {{eng}},
pages = {{393--397}},
publisher = {{Elsevier}},
series = {{Journal of Alloys and Compounds}},
title = {{Cu11In9 - Revised crystal structure and its (physicochemical) relation to Cu10In7}},
url = {{http://dx.doi.org/10.1016/j.jallcom.2015.03.106}},
doi = {{10.1016/j.jallcom.2015.03.106}},
volume = {{638}},
year = {{2015}},
}