TY - JOUR
T1 - X-ray diffraction reinvestigation of the Ni-Pt phase diagram
AU - Popov, Anton A.
AU - Varygin, Andrey D.
AU - Plyusnin, Pavel E.
AU - Sharafutdinov, Marat R.
AU - Korenev, Sergey V.
AU - Serkova, Alexandra N.
AU - Shubin, Yury V.
N1 - Funding Information:
The reported study was supported by the Ministry of Science and Higher Education of the Russian Federation (project # 121031700315-2) and the Russian Foundation for Basic Research (project # 20-33-90211). This work was carried out using the facilities of the Siberian Synchrotron and Terahertz Radiation Centre and the National Center of Catalyst Research. The authors are grateful to Evgeny Gerasimov for his assistance in the TEM studies.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/1/25
Y1 - 2022/1/25
N2 - The Ni-Pt phase diagram was corrected in the range of 15–85 at.% Pt and in the temperature range of 400–525 °C using powder X-ray diffraction data. To reduce the time required to achieve the equilibrium state, Ni-Pt alloys, consisting of 80–140 nm nanocrystalline particles (nanoalloys) were used as initial samples. The nanoalloys were synthesized by thermolysis of specially prepared multicomponent precursors. Phase transformations in the system at high temperatures were studied in situ by X-ray diffraction. The boundary positions of Ni1−xPtx (A1), Ni3Pt (L12), NiPt (L10), NiPt3 (L12) single-phase regions were corrected.
AB - The Ni-Pt phase diagram was corrected in the range of 15–85 at.% Pt and in the temperature range of 400–525 °C using powder X-ray diffraction data. To reduce the time required to achieve the equilibrium state, Ni-Pt alloys, consisting of 80–140 nm nanocrystalline particles (nanoalloys) were used as initial samples. The nanoalloys were synthesized by thermolysis of specially prepared multicomponent precursors. Phase transformations in the system at high temperatures were studied in situ by X-ray diffraction. The boundary positions of Ni1−xPtx (A1), Ni3Pt (L12), NiPt (L10), NiPt3 (L12) single-phase regions were corrected.
KW - Disorder-order transformations
KW - Experimental X-ray study
KW - Nickel
KW - Phase diagram
KW - Platinum
UR - http://www.scopus.com/inward/record.url?scp=85116017301&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2021.161974
DO - 10.1016/j.jallcom.2021.161974
M3 - Article
AN - SCOPUS:85116017301
VL - 891
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
M1 - 161974
ER -