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1. An effective synthesis route for high-performance α-MgAgSb thermoelectric material

Author:
Keita Toh; Koichiro Suekuni; Katsuaki Hashikuni; Hirotaka Nishiate; Ushin Anazawa; Chul-Ho Lee; Michitaka Ohtaki
Source:
Journal of materials science 2022 v.57 no.24 pp. 11265-11273
ISSN:
0022-2461
Subject:
melting,   etc   ; heat treatment; journals; materials; milling; sampling;     Show all 6 Subjects
Abstract:
... α-MgAgSb has been receiving attention as a thermoelectric material due to its high performance at 300–550 K. A MgAgSb sample synthesized by melting the constituent elements is known to contain secondary phases, which can be diminished by long-term heat treatment. However, less effort has been devoted to investigating the secondary phases and exploring an effective synthesis route to improve the sa ...
DOI:
10.1007/s10853-022-07306-5

2. Fibers of thermoplastic polymer blends activate multiple interlayer toughening mechanisms

Author:
Melike Kılıçoğlu; Erhan Bat; Güngör Gündüz; Mustafa Utku Yıldırım; Kamil Urgun; Bora Maviş
Source:
Composites 2022 v.158 pp. 106982
ISSN:
1359-835X
Subject:
melting,   etc   ; composite materials; epoxides; mechanism of action; mixing; thermoplastics;     Show all 6 Subjects
Abstract:
... Interleaving fiber reinforced layered composites with thermoplastic veils is a strategy that has been examined by using electrospun fibers of homopolymers as well as their physical mixtures. Separate toughening mechanisms were activated by the individual presence of the physically mixed fibers in previous studies. Here, we show that it is possible to initiate a concerted action of these mechanisms ...
DOI:
10.1016/j.compositesa.2022.106982

3. Fatigue crack growth resistance of a mesoscale composite microstructure Haynes 282 fabricated via electron beam melting additive manufacturing

Author:
Patxi Fernandez-Zelaia; Julio Ortega Rojas; James Ferguson; Sebastien Dryepondt; Michael M. Kirka
Source:
Journal of materials science 2022 v.57 no.21 pp. 9866-9884
ISSN:
0022-2461
Subject:
melting,   etc   ; additives; composite materials; cracking; electrons; journals; manufacturing; microstructure; superalloys;     Show all 9 Subjects
Abstract:
... Materials synthesis via additive manufacturing gives unprecedented control over the solidified microstructure. While a number of studies have demonstrated the ability to produce spatially varying microstructures, little work exists to understand the behavior of such “composite” materials. In this work, we utilized electron beam melting to process Ni-based superalloy Haynes 282 and produce compact ...
DOI:
10.1007/s10853-021-06838-6

4. Rheology of Entangled Solutions of Ring–Linear DNA Blends

Author:
Dejie Kong; Sourya Banik; Michael J. San Francisco; Megan Lee; Rae M. Robertson Anderson; Charles M. Schroeder; Gregory B. McKenna
Source:
Macromolecules 2022 v.55 no.4 pp. 1205-1217
ISSN:
1520-5835
Subject:
melting,   etc   ; DNA; dynamic testing; exhibitions; measurement; mixing; polymers; rheology; viscosity;     Show all 9 Subjects
Abstract:
... Bulk rheology measurements on concentrated monodisperse ring–linear DNA mixtures are reported for the first time. The entanglement behavior of the ring–linear DNA mixtures (with 15 and 50% linear chain fractions, ϕLᵢₙ) over a range of total DNA concentration, ϕTₒₜ, from ∼0.8 mg/mL (20C*) to 2 mg/mL (50C*) is reported. A discussion on the current problems in the reported ring dynamics/scaling is in ...
DOI:
10.1021/acs.macromol.1c01672

5. Effect of Cage Occupancy on Stability and Decomposition of Methane Hydrate

Author:
Dilare Kainai; Dongsheng Bai
Source:
Journal of physical chemistry 2022 v.126 no.2 pp. 492-502
ISSN:
1520-5207
Subject:
melting,   etc   ; concentrates; concentrating; exhibitions; gas hydrate; gases; journals; methane; surface area; wills;     Show all 10 Subjects
Abstract:
... Gas hydrates usually contain a certain number of empty cages that will both affect the hydrate stability and reduce the gas storage capacity. In this work, by MD simulations, we found that the hydrate stability is related to the cage occupancy, the empty cage types, and especially the distribution of empty cages. With the decrease of overall occupancy, the stability of hydrate becomes worse. Under ...
DOI:
10.1021/acs.jpcb.1c07582

6. Machine Learning-Assisted Materials Design and Discovery of Low-Melting-Point Inorganic Oxides for Low-Temperature Cofired Ceramic Applications

Author:
Jincheng Qin; Zhifu Liu; Mingsheng Ma; Yongxiang Li
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.4 pp. 1554-1564
ISSN:
2168-0485
Subject:
melting point,   etc   ; algorithms; ceramics; energy; energy conservation; green chemistry; neural networks; prediction; temperature;     Show all 9 Subjects
Abstract:
... The fabrication of low-temperature cofired ceramics (LTCCs) densified at a low sintering temperature (<900 °C) is energy-saving and environmentally friendly. However, finding novel LTCC materials by the trial-and-error method is time-consuming and costly. The LTCC materials often have low melting points, so it is feasible to discover high-performance LTCC materials out of the low-melting-point cer ...
DOI:
10.1021/acssuschemeng.1c06983

7. Critical role of surficial activity in the sintering process of TiO2 nanoparticles by molecular dynamics simulation

Author:
Haozhen Yang; Benyao Sun; Yunfan Zhu; Deqiang Yin; Jianyao Yao
Source:
Powder technology 2022 v.398 pp. 117071
ISSN:
0032-5910
Subject:
melting point,   etc   ; anisotropy; models; molecular dynamics; neck; particle size; synergism; temperature; titanium dioxide;     Show all 9 Subjects
Abstract:
... The surface activity and sintering process of rutile TiO₂ nanoparticles were investigated by molecular dynamics simulation. The anisotropic surface-activity was investigated for three low indexes of 〈111〉, 〈110〉 and 〈001〉 using a core-shell model for describing the sintering process. Moreover, the melting-point of TiO₂ nanoparticle increased with particle size. During the aggregation of two nanopa ...
DOI:
10.1016/j.powtec.2021.117071

8. Experimental investigation and discrete element modeling for particle-scale powder spreading dynamics in powder-bed-fusion-based additive manufacturing

Author:
Shibo Wu; Zhenglong Lei; Meng Jiang; Jingwei Liang; Bingwei Li; Yanbin Chen
Source:
Powder technology 2022 v.403 pp. 117390
ISSN:
0032-5910
Subject:
melting,   etc   ; additives; blades; elastic deformation; exhibitions; forces; jams; manufacturing; methodology; models; particles; powders; solutions;     Show all 13 Subjects
Abstract:
... Experiments and discrete element method simulation are combined to systematically reveal the particle-scale powder spreading dynamics based on the actual situation in additive manufacturing. To the best of our knowledge, this is the first report that introduces experimental calibration of powder layer height and line-contact triangular blade in the simulation. The results show that contributions o ...
DOI:
10.1016/j.powtec.2022.117390

9. Overview of the Fiber Dynamics during Melt Blowing

Author:
Guangwu Sun; Wanli Han; Yudong Wang; Sanfa Xin; Jingru Yang; Fangdong Zou; Xinhou Wang; Changfa Xiao
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.2 pp. 1004-1021
ISSN:
1520-5045
Subject:
melting,   etc   ; engineers; equations; evolution; fiber quality; models; process design; processing chemistry; processing technology; webs;     Show all 10 Subjects
Abstract:
... Melt blowing (MB) is an industrial process used in producing microfibrous nonwoven materials. Over the past decades, a considerable amount of theoretical and experimental research has been conducted on the mechanisms of fiber dynamics during MB. Although some studies have been summarized by recently published review articles, the evolution of the theoretical equations and improvements in the exper ...
DOI:
10.1021/acs.iecr.1c03972

10. Unexpected Structural Properties in the Saturation Region of the Odd–Even Effects in Aliphatic Polyethers: Influence of Crystallization Conditions

Author:
Irma Flores; Ricardo A. Pérez-Camargo; Elena Gabirondo; Maria Rosaria Caputo; Guoming Liu; Dujin Wang; Haritz Sardon; Alejandro J. Müller
Source:
Macromolecules 2022 v.55 no.2 pp. 584-594
ISSN:
1520-5835
Subject:
melting,   etc   ; X-ray scattering; crystallization; differential scanning calorimetry; exhibitions; history; length; sampling; solutions; temperature;     Show all 10 Subjects
Abstract:
... A series of aliphatic polyethers with different chain lengths (nCH₂ = 6 to 12 and 16) is studied employing differential scanning calorimetry and X-rays scattering. The calorimetric and structural behavior of samples crystallized from the melt is divided into the odd–even and saturation regions. In the odd–even region (nCH₂ = 6 to 10), the odd samples (nCH₂ = 7 and 9) show enhanced calorimetric pro ...
DOI:
10.1021/acs.macromol.1c02235

11. Manufacturing of tetrahedral metal effect pigment particles and analysis of their orientation in polymer melts

Author:
Nils Maximilian Demski; Benjamin Lasson; Kyra Eowyn Reinert; Paul Hans Kamm; Tillmann Robert Neu; Francisco García-Moreno; Marco Jagodzinski; Daniel Alexandre Rolón; Markus Malcher; Dirk Oberschmidt
Source:
Powder technology 2022 v.408 pp. 117717
ISSN:
0032-5910
Subject:
melting,   etc   ; computed tomography; manufacturing; metals; optical properties; particles; pigments; polymethylmethacrylate; powders; rolling; rolls; shape; welding;     Show all 13 Subjects
Abstract:
... In this study, novel micro particles in the shape of irregular tetrahedrons in a two to three-digit micrometer size range are presented. The particle manufacturing feasibility was investigated in three different ways: shaping, casting and rolling. Rolling showed the potential for mass production. The suitability of tetrahedral particles for the use as metal effect pigment was assessed by compariso ...
DOI:
10.1016/j.powtec.2022.117717

12. Re-entrant transition as a bridge of broken ergodicity in confined monolayers of hexagonal prisms and cylinders

Author:
B.P. Prajwal; Jen-Yu Huang; Meera Ramaswamy; Abraham D. Stroock; Tobias Hanrath; Itai Cohen; Fernando A. Escobedo
Source:
Journal of colloid and interface science 2022 v.607 pp. 1478-1490
ISSN:
0021-9797
Subject:
melting,   etc   ; Monte Carlo method; area; basins; colloids; journals; microparticles; mixtures; models; prisms; rotational molding; sampling; sandwiches; solids; translation (genetics); walls;     Show all 16 Subjects
Abstract:
... The entropy-driven monolayer assembly of hexagonal prisms and cylinders was studied under hard slit confinement. At the conditions investigated, the particles have two distinct and dynamically disconnected rotational states: unflipped and flipped, depending on whether their circular/hexagonal face is parallel or perpendicular to the wall plane. Importantly, these two rotational states cast distinc ...
DOI:
10.1016/j.jcis.2021.09.073

13. Control of slag formation in the electric furnace smelting of ferronickel for an energy-saving production

Author:
Jun Luo; Guanghui Li; Mingjun Rao; Zhiwei Peng; Guoshen Liang; Tao Jiang; Xueyi Guo
Source:
Journal of cleaner production 2021 v.287 pp. 125082
ISSN:
0959-6526
Subject:
melting; melting point,   etc   ; carbon dioxide; electric furnaces; emissions; energy; energy conservation; laterites; nickel; olivine; slags; temperature; viscosity;     Show all 13 Subjects
Abstract:
... Two-thirds of the global nickel output can be attributed to the rotary kiln-electric furnace process. Due to the high contents of MgO and SiO₂ in laterite, a high temperature (∼1600 °C) and corresponding energy (approximately 14 GJ/t-ferronickel) are required during the electric furnace smelting. This work verifies the feasibility of decreasing the smelting temperature by controlling the slag form ...
DOI:
10.1016/j.jclepro.2020.125082

14. Melting constants in trade gravity’s rainbow

Author:
Sven Blank; Peter H. Egger
Source:
Economics letters 2021 v.201 pp. 109803
ISSN:
0165-1765
Subject:
melting,   etc   ; additives; empirical models; exports; friction; gravity;     Show all 6 Subjects
Abstract:
... Customary empirical gravity models are parametric and rely on the assumption that exports from country i to j depend on an additive index of three components: i-specific supply potential which is common across importers j; j-specific demand potential which is common across exporters i; and bilateral trade frictions which are indexed by ij and common within ij in a generic period. We demonstrate th ...
DOI:
10.1016/j.econlet.2021.109803

15. Reversible assembly–disassembly of plasmonic spherical nucleic acids enabling temperature-self-controllable and biomarker-activatable photothermal effects

Author:
Lixian Huang; Jinling Zhang; Lifang Pang; Shengqiang Hu; Liangliang Zhang; Shulin Zhao
Source:
Chemical communications 2021 v.57 no.88 pp. 11617-11620
ISSN:
1364-548X
Subject:
melting point,   etc   ; chemical communication; heat; nucleic acids;     Show all 4 Subjects
Abstract:
... Since the photothermal heating of plasmonic spherical nucleic acids (pSNAs) depends on the self-assembly level and melting temperature (Tₘ), a temperature-self-controllable and biomarker-activatable photothermal effect in vivo was thus achieved using the Tₘ-dependent assembly–disassembly of pSNAs. ...
DOI:
10.1039/d1cc04792b

16. Collisional damping of spherical ice particles

Author:
Tobias Eidevåg; Erik S. Thomson; Sofia Sollén; Johan Casselgren; Anders Rasmuson
Source:
Powder technology 2021 v.383 pp. 318-327
ISSN:
0032-5910
Subject:
melting,   etc   ; glass; glass transition temperature; ice; particles; thermoplastics;     Show all 6 Subjects
Abstract:
... This paper presents experimental values for the coefficient of restitution (eₙ) for millimeter-sized ice particles colliding with massive walls at different temperatures. Three different wall materials are tested: hardened glass, ice and Acrylonitrile butadiene styrene (ABS) polymer. The results show a high sensitivity to impact velocity Vᵢ, where eₙ decreases rapidly with increasing Vᵢ. The resul ...
DOI:
10.1016/j.powtec.2021.01.025

17. Crystal polymorphism of 8OCB liquid crystal consisting of strongly polar rod-like molecules

Author:
Subhadip Ghosh; Arun Roy
Source:
RSC advances 2021 v.11 no.9 pp. 4958-4965
ISSN:
2046-2069
Subject:
melting,   etc   ; age; ambient temperature; heat; liquid crystals; powders; sampling;     Show all 7 Subjects
Abstract:
... We report detailed experimental studies on the different crystal polymorphs of 8OCB (4′-octyloxy-4-cyanobiphenyl) obtained by cooling the sample from its melt. The 8OCB liquid crystal has a stable crystal phase which is known as commercial powder (CP) phase. In addition, it also exhibits various metastable crystal phases such as square-plate, needle phase and long parallelepiped (PP) phase. We ide ...
DOI:
10.1039/d0ra08543j

18. Structure/processing relationships and mechanical properties of freeze-cast B4C scaffolds with unidirectional channels

Author:
Yang Wang; Qiang Liu; Biao Zhang; Haoqian Zhang; Yicheng Jin; Zhaoxin Zhong; Feng Ye; Wen Wang
Source:
Journal of materials science 2021 v.56 no.25 pp. 13989-14000
ISSN:
0022-2461
Subject:
melting,   etc   ; ceramics; composite materials; freezing; journals; mechanical properties; porosity; solids;     Show all 8 Subjects
Abstract:
... Freeze casting technique has become a promising way to assemble various components into multifunctional nacre-like materials. Surprisingly, although many ceramics materials have been processed by this approach, there are few studies reporting the structure–property-processing relationships of freeze-cast porous B₄C ceramics. Here we generate bimodally lamellar porous B₄C scaffolds by freeze castin ...
DOI:
10.1007/s10853-021-06236-y

19. Enhanced thermal storage capacity of paraffin/diatomite composite using oleophobic modification

Author:
Pan Zhang; Yuanyuan Cui; Kaiqiang Zhang; Sainan Wu; Dongchu Chen; Yanfeng Gao
Source:
Journal of cleaner production 2021 v.279 pp. 123211
ISSN:
0959-6526
Subject:
melting,   etc   ; buildings; diatomaceous earth; encapsulation; energy conservation; freezing; reliability; storage; temperature;     Show all 9 Subjects
Abstract:
... The inherent leakage of molten paraffin during the solid-liquid transition and the immature state of industrial technology currently limit its practical applications for temperature regulation in smart energy-saving buildings. Here, a 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane modification of diatomite with an oleophobic surface was used as a supporting material of molten paraffin for enhancing ...
DOI:
10.1016/j.jclepro.2020.123211

20. A novel contactless, feedbackless and sensorless power delivery link to electromagnetic levitation melting system residing in sealed compartment

Author:
Yegal Darhovsky; Martin Mellincovsky; Dmitry Baimel; Alon Kuperman
Source:
Energy 2021 v.231 pp. 120789
ISSN:
0360-5442
Subject:
melting,   etc   ; couplings; design; differential equation; electric potential difference; guidelines; methodology; topology;     Show all 8 Subjects
Abstract:
... The paper presents practical considerations and guidelines for designing an improved-efficiency contactless inductive power transfer link, delivering DC power in step-down mode to an electromagnetic levitation melting system residing in a sealed compartment. The proposed arrangement employs none-series compensated inductive power transfer link operating at the so-called “load-independent-voltage-o ...
DOI:
10.1016/j.energy.2021.120789