scholarly journals Two-phase coexistence in Fe–Ni alloys synthesized by ball milling

1996 ◽  
Vol 79 (8) ◽  
pp. 3946 ◽  
Author(s):  
L. B. Hong ◽  
B. Fultz
Keyword(s):  
Ball Milling ◽  
Phase Coexistence ◽  
Two Phase ◽  
Ni Alloys

Two-phase coexistence in Fe–Cu alloys synthesized by ball milling

1998 ◽  
Vol 46 (8) ◽  
pp. 2937-2946 ◽  
Author(s):  
L.B. Hong ◽  
B. Fultz
Keyword(s):  
Ball Milling ◽  
Phase Coexistence ◽  
Two Phase ◽  
Cu Alloys

Hydrogen Solubility in Inhomogeneous PD Alloys

1998 ◽  
Vol 513 ◽  
Author(s):  
Ted B. Flanagan ◽  
D. Wang ◽  
J. D. Clewley
Keyword(s):  
Phase Change ◽  
Equilibrium Phase ◽  
Hydrogen Solubility ◽  
Two Phase ◽  
Ni Alloys

ABSTRACTAs-cast, arc-melted Pd-Ni alloys are inhomogeneous and the H2 isotherms for these differ from their homogeneous counterparts in the two phase, (dilute + hydride), regions but not in the dilute phase regions. Pd-Ni alloys, which become inhomogeneous via a ternary (Pd + Ni + H) equilibrium phase change, have H2 isotherms which differ from those of the homogeneous alloy in both the two-phase and the dilute phase regions. These results are discussed with respect to the expected type of inhomogeneities.

Observation of Stripe Superstructure in the β-Two-Phase Coexistence Region of Cholesterol–Phospholipid Mixtures in Supported Membranes

2014 ◽  
Vol 136 (49) ◽  
pp. 16962-16965 ◽  
Author(s):  
Seyed R. Tabaei ◽  
Joshua A. Jackman ◽  
Bo Liedberg ◽  
Atul N. Parikh ◽  
Nam-Joon Cho
Keyword(s):  
Phase Coexistence ◽  
Supported Membranes ◽  
Coexistence Region ◽  
Two Phase

Two-Phase Coexistence in Single-Grain BaTiO3-(Mn0.5Zn0.5)Fe2O4Composites, Via Solid-State Reaction

2009 ◽  
Vol 92 (7) ◽  
pp. 1552-1555 ◽  
Author(s):  
Yaodong Yang ◽  
Shashank Priya ◽  
Jie-Fang Li ◽  
Dwight Viehland
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Phase Coexistence ◽  
Two Phase ◽  
Single Grain

Raman Spectroscopic Study of Phase Coexistence in Binary Phospholipid Bilayers

2020 ◽  
Vol 75 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Sergey V. Adichtchev ◽  
Konstantin A. Okotrub ◽  
Alexey M. Pugachev ◽  
Irina V. Zaytseva ◽  
Nikolay V. Surovtsev
Keyword(s):  
Raman Line ◽  
Low Frequency ◽  
Phospholipid Bilayers ◽  
Phase Coexistence ◽  
Lipid Phase ◽  
Label Free ◽  
Scanning Calorimetry ◽  
Two Phase ◽  
Raman Spectroscopic ◽  
Raman Scattering Spectra

Binary phospholipid bilayers composed of 1,2-dioleoyl-sn-glycero-3-phosphocholine and 1,2-palmitoyl-sn-glycero-3-phosphocholine (DPPC) were studied by Raman spectroscopy and differential scanning calorimetry (DSC). We examined features in Raman scattering spectra that are sensitive to the lipid phase and, therefore, could indicate the phase coexistence. It was found that the low-frequency half-width of half-maximum (LHWHM) of the 2850 cm−1 Raman line, corresponding to the symmetric CH2 stretching vibrations, unequivocally reveals the coexisting phospholipids in ordered and disordered conformational states, which correspond to ordered and disordered phases coexistence, in the DPPC mole concentration range from 0.4 to 0.9. The phase coexistence in this concentration range was supported by the particular concentration behavior of the ratio between the intensities of the 2880 cm−1 antisymmetric CH2 vibration line and the 2850 cm−1 symmetric one. It was also shown that the spectral shape of the 1300 cm−1 Raman line, corresponding to the CH2 twisting vibrations, is a good indicator for the phase state and phase coexistence in the phospholipid bilayers. Comparison with the DSC curves confirmed that in the DPPC mole concentration range from 0.4 to 0.9, the two phase transition peaks are observed in DSC curve, those positions are independent of the DPPC concentration. The outcome of the study is the robust label-free contactless approach for the detection of the lipid phase separation, which can be realized with the micrometer resolution.

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