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Thermodynamic Asses...
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Zhang, Wei-Wei
(författare)
Thermodynamic Assessment of the Cu-B System Supported by Key Experiment and First-Principles Calculations
- Artikel/kapitelEngelska2009
Förlag, utgivningsår, omfång ...
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2009-07-07
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Springer Science and Business Media LLC,2009
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printrdacarrier
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LIBRIS-ID:oai:DiVA.org:kth-30413
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-30413URI
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https://doi.org/10.1007/s11669-009-9561-7DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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QC 20110301 14th National Conference and Multilateral Symposium on Phase Diagrams and Materials Design held in Honor of Jin Zhanpeng Changsha, PEOPLES R CHINA, NOV 02-05, 2008
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The Cu-B system was investigated via a hybrid approach of key experiment and thermodynamic modeling. Based on the critically assessed Cu-B phase diagram, seven crucial alloys were selected and prepared by arc melting the pure elements. An inductively coupled plasma-atomic emission spectrometric analysis was conducted to determine the compositions of the prepared alloys. The phase equilibria were determined by using x-ray diffraction, electron probe microanalysis, and differential thermal analysis. The temperature associated with the eutectic reaction, L double left right arrow (B) + (Cu); was measured to be 1028 +/- 2 degrees C. First-principles calculations indicate that the energy of inserting a B atom into the interstitial vacancy (Va) site of the lattice for Cu atoms is marginally lower than that of substituting for a Cu atom with a B atom. Consequently, the sublattice model (Cu)(B, Va) in which B atoms occupy the interstitial sites was employed for the fcc (Cu) phase rather than the model (Cu, B)(Va) in which B atoms substitute for Cu atoms. A thermodynamic modeling of the Cu-B system was then performed by considering the reliable literature data and the present experimental results. A good agreement between modeling and experiment was obtained.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Du, Yong
(författare)
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Xu, Honghui
(författare)
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Xiong, WeiKTH,Termodynamisk modellering(Swepub:kth)u17yn5p9
(författare)
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Kong, Yi
(författare)
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Sun, Weihua
(författare)
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Pan, Fusheng
(författare)
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Tang, Aitao
(författare)
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KTHTermodynamisk modellering
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of Phase Equilibria and Diffusion: Springer Science and Business Media LLC30:5, s. 480-4861547-70371863-7345
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