Results 111 to 120 of about 285,295 (266)

Crystal structure of ethyl 2-({[(4Z)-3,5-dioxo-1-phenylpyrazolidin-4-ylidene]methyl}amino)acetate

open access: yesActa Crystallographica Section E, 2014
The title compound, C14H15N3O4, is nearly planar, the dihedral angle between the planes of the phenyl and pyrazolidine rings being 1.13 (7) Å, and that between the plane of the pyrazolidine ring and the mean plane of the side chain [C—N—C–C(=O)—O; r.m.s.
Shaaban K. Mohamed   +4 more
doaj   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

4,4'-Trimethylenedipyridinium bis[carboxymethylphosphonate(1-)]: a three-dimensional framework structure built from O-H...O, N-H...O and C-H...O hydrogen bonds

open access: yes, 2003
In the title compound, C13H16N22+.2C(2)H(4)O(5)P(-), the cation lies across a twofold rotation axis in space group Fdd2. The anions are linked into molecular ladders by two O-H...O hydrogen bonds [H...O = 1.73 and 1.77 Angstrom, O...O = 2.538 (2) and 2 ...
Bowes, K F   +6 more
core   +1 more source

Intramolecular N-H...O, intermolecular O-H...O, C-H...O and Csp³-H...πarene interactions in (2S)-2-{[(2R)-2-hydroxy-2-phenylethanoyl]amino}-4-methylpentanoic acid [PDF]

open access: yes, 1999
The title compound, C₁₄H₁₉NO₄, forms a hydrogenbonded network in the solid state, consisting of one intramolecular N--H...O [N...O 2.569 (3)Å] and two intermolecular O--H...0=C [O...O 2.704(2) and 2.801 (2)Å] hydrogen bonds, with weaker C--H...O [C...O ...
Dalton, John P.   +4 more
core   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

2-Aminobenzimidazolium O-ethyl malonate: eight independent N-H...O hydrogen bonds generate sheets

open access: yes, 2003
The title compound, C7H8N3+.C5H7O4-, crystallizes with Z' = 2 in space group P2(1)/c; eight independent N - H...O hydrogen bonds [H...O = 1.75 - 1.88 Angstrom, N...O = 2.699 (2) - 2.829 (2) Angstrom and N - H...O = 147 - 179degrees] link the four ...
Insuasty, B   +4 more
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Hydrogen-bonded adducts of triphenylsilanol with diamines: a finite ten-molecule aggregate, and chain, sheet and framework structures built from O-H...O, O-H...N and C-H...π(arene) hydrogen bonds

open access: yes, 2004
The structures of five hydrogen-bonded adducts of triphenylsilanol, Ph3SiOH, with diamines have been determined. In the 4: 1 adduct formed with 1,4-diazabicyclo[2.2.2] octane, (Ph3SiOH)(4).C6H12N2 (I) (triclinic, P (1) over bar 1, Z' = 2), there are two ...
Ferguson, G   +3 more
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

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