中文
相关论文

相关论文: Crystal structure of Cu-Sn-In alloys around the {\…

200 篇论文

Building on the recent discovery of tough nanocrystalline Cu-Zr alloys with amorphous intergranular films, this paper investigates ternary nanocrystalline Cu-Zr-Hf alloys with a focus on understanding how alloy composition affects the…

材料科学 · 物理学 2019-08-16 Charlette M. Grigorian , Timothy J. Rupert

The simulations of the solidification of ternary Al-Cu-Ni alloys by means of a general multi-phase-field model for an arbitrary number of phases reveal that the real microstructure can be generated by coupling the real thermodynamic…

材料科学 · 物理学 2013-07-15 J. Kundin , E. Pogorelov , H. Emmerich

The fascinating multiple magnetic states observed in the Ni-Mn-Sn based metamagnetic shape memory alloy are addressed through a combined muon spin relaxation (muSR) and neutron powder diffraction studies. The material used in the present…

The structural phase transformations of 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 (PMN-30%PT) have been studied using x-ray diffraction (XRD) and neutron scattering as a function of temperature and electric field. We observe the phase transformational…

材料科学 · 物理学 2009-11-10 Feiming Bai , Naigang Wang , Jiefang Li , D. Viehland , P. M. Gehring , Guangyong Xu , G. Shirane

Ti/Cu multilayers with periods ranging from 4 to 52.5 nm were synthesized by magnetron sputtering to examine how the period thickness affects morphology, crystallization, texture development, and preservation of periodicity. The structural…

In this work, the mechanism of Li insertion in $\eta '$-Cu$_6$Sn$_5$ to form Li$_2$CuSn is discussed in detail, based on both theoretical calculations and experimental results. The mechanism is investigated by means of first principles…

材料科学 · 物理学 2007-05-23 S. Sharma , L. Fransson , E. Sjöstedt , L. Nordström , B. Johansson , K. Edström

According to phase diagrams based on x-ray measurements, In70-Pt30 has the cubic Sn7Ir3 crystal structure (D8f, cI40) but the alloys In70-Ni30 and In70-Pd30 have been variously reported to have either a cubic gamma-brass (D81-3, cI52) or…

材料科学 · 物理学 2014-03-27 Lee Aspitarte , Egbert R. Nieuwenhuis , Gary S. Collins

Neutron diffraction and ab initio studies were carried out on Mn2V1-xCoxGa (x=0, 0.25, 0.5, 0.75, 1) Heusler alloys which exhibits high TC fully compensated ferrimagnetic characteristic for x=0.5. A combined analysis of neutron diffraction…

材料科学 · 物理学 2020-01-06 P V Midhunlal , C Venkatesh , J Arout Chelvane , P D Babu , N Harish Kumar

To assess long-term structural integrity under operational conditions in nuclear reactors, SS 316LN with varying nitrogen content is subjected to thermal aging for 20000 hours at 650{\deg}C. While the annealing twins and heterogeneous grain…

T-(Al20Cu2Mn3) phase dispersoids are important for limiting recovery and controlling grain growth in Al-Cu alloys. However, these dispersoids can also reduce precipitation hardening by acting as heterogeneous nucleation sites and may lead…

The prototype compound for the neutral-ionic phase transition, namely TTF-CA, is theoretically investigated by first-principles density functional theory calculations. The study is based on three neutron diffraction structures collected at…

凝聚态物理 · 物理学 2009-11-07 V. Oison , C. Katan , P. Rabiller , M. Souhassou , C. Koenig

Neutron imaging has gained significant importance as a material characterisation technique and is particularly useful to visualise hydrogenous materials in objects opaque to other radiations. Particular fields of application include…

Neutron stars exhibit magnetic fields and densities far beyond those achievable in terrestrial laboratories, offering a natural probe of strongly interacting matter under extreme conditions. Using observationally anchored mass-radius…

宇宙学与河外天体物理 · 物理学 2026-01-13 Abriana Lyda , Prajwal MohanMurthy

In 2006, a novel cobalt-based superalloy was discovered [1] with mechanical properties better than some conventional nickel-based superalloys. As with conventional superalloys, its high performance arises from the precipitate-hardening…

Single crystals of Sc5Rh6Sn18 were grown from Sn-flux. The crystal structure (SG: I41/acd, a = 13.5529(2) {\AA}, c = 27.0976(7) {\AA}) was studied by high-resolution X-ray diffraction on powder and single crystal material as well as by TEM.…

The crystal and magnetic structures of the superconducting iron based chalcogenides RbyFe2-xSe2 have been studied by means of single crystal synchrotron x-ray and high resolution neutron powder diffraction in the temperature range 2-570 K.…

Ba(Fe$_{1/2}$Nb$_{1/2}$)O$_3$ (BFN) ceramics are considered to be promising for technological applications owing to their high dielectric constant over a wide range of temperatures. However, there exists considerable discrepancy over the…

Analyses of high energy elastic pp and $\bar pp$ scattering data from CERN ISR and SPS Collider seem to provide strong evidence in favor of the gauged nonlinear sigma-model of the nucleon. This model describes the nucleon as a topological…

高能物理 - 唯象学 · 物理学 2007-05-23 M. M. Islam

Two phase titanium alloys are important for high performance engineering components, such as aeroengine discs. The microstructures of these alloys are tailored during thermomechanical processing to precisely control phase factions,…

材料科学 · 物理学 2017-04-05 Vivian Tong , Sudha Joseph , Abigail K. Ackerman , David Dye , T. Ben Britton

We report investigation of structural phase transitions in technologically important material sodium niobate as a function of temperature on heating over 300-1075 K. Our high resolution powder neutron diffraction data show variety of…

材料科学 · 物理学 2015-05-20 S. K. Mishra , R. Mittal , V. Yu. Pomjakushin , S. L. Chaplot