1977
DOI: 10.1149/1.2133536
|View full text |Cite
|
Sign up to set email alerts
|

Thermodynamics of the Nonstoichiometric β 1 ‐ PtZn Phase Exhibiting the Ll0 Structure

Abstract: Thermodynamic activities of zinc in the ~l-PtZn and the a-PtZn phases were determined at 1273~ using an isopiestic method. The theoretical thermodynamic equations by Chang and co-workers for the nonstoichiometrie Llo phases were modified to include the different interactions between the first nearest neighbor and the second nearest neighbor atoms. An analysis of the activity data for the ~-PtZn phase at 1273~ in terms of the modified theoretical equation yields the following values: a = 3 • 10 -4, ~ -: 1.0, an… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
7
0

Year Published

1978
1978
2020
2020

Publication Types

Select...
6

Relationship

0
6

Authors

Journals

citations
Cited by 18 publications
(7 citation statements)
references
References 19 publications
0
7
0
Order By: Relevance
“…Table 1 presents the crystallographic data of the intermetallic compounds studied here as reported in Refs. 14,33–37 together with their respective melting or transition points T m 53–58 and heats of formation Δ H calc as calculated from Miedema's empirical model 5962…”
Section: Resultsmentioning
confidence: 99%
“…Table 1 presents the crystallographic data of the intermetallic compounds studied here as reported in Refs. 14,33–37 together with their respective melting or transition points T m 53–58 and heats of formation Δ H calc as calculated from Miedema's empirical model 5962…”
Section: Resultsmentioning
confidence: 99%
“…Probably, the robustness of the intermetallic compounds relies on the thermodynamic stability. Table summarizes the formation enthalpies (Δ H f ) of various intermetallic compounds covered in this review. Pt 3 Ti (−94 kJ mol –1 ) and PdGa (−79 kJ mol –1 ) showed highly negative Δ H f values, indicating that deviation from the ordered structure is thermodynamically unfavorable, and therefore, the ordered structure is thermodynamically stable. Other intermetallic compounds showed moderately to significantly negative Δ H f values (typically −30 ∼ −100 kJ mol –1 ), suggesting high stability.…”
Section: Future Tasks In This Fieldmentioning
confidence: 99%
“…Zinc activity values of the PtÀ Zn system plotted against atomic percentage of zinc. [53][54][55] The homogeneity range of the intermetallic compound ZnPt at 900°C is indicated by dashed lines . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57…”
Section: Figurementioning
confidence: 99%