Sök i LIBRIS databas

  Utökad sökning


Sökning: onr:"swepub:oai:DiVA.org:kth-30413" > Thermodynamic Asses...

Thermodynamic Assessment of the Cu-B System Supported by Key Experiment and First-Principles Calculations

Zhang, Wei-Wei (författare)
Du, Yong (författare)
Xu, Honghui (författare)
visa fler...
Xiong, Wei, (författare)
KTH, Termodynamisk modellering
Kong, Yi (författare)
Sun, Weihua (författare)
Pan, Fusheng (författare)
Tang, Aitao (författare)
visa färre...
Ingår i: Journal of Phase Equilibria and Diffusion. - 1547-7037. ; 30:5, s. 480-486
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
  • <p>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.</p>


TEKNIK OCH TEKNOLOGIER  -- Materialteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Materials Engineering (hsv//eng)


first-principles calculation
phase diagram
thermal analysis
thermodynamic assessment
TECHNOLOGY Materials science
TEKNIKVETENSKAP Teknisk materialvetenskap

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)
ref (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Sök utanför SwePub

pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy