Liquid-phase scanning electron microscopy for single membrane protein imaging

2021 ◽  
Author(s):  
Li Wang ◽  
Changshuo Li ◽  
Jintao Li ◽  
Xiaofei Zhang ◽  
Xiaochen Li ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Liquid Phase ◽  
Membrane Protein ◽  
Single Membrane ◽  
Protein Imaging ◽  
Scanning Electron

Microstructure Observation and Analysis of Powders, Green Bodies Used for Sintering SiC Ceramics by SEM

2012 ◽  
Vol 624 ◽  
pp. 107-111
Author(s):  
Yong Jiang ◽  
Lan Er Wu ◽  
Yu Hong Chen ◽  
You Jun Lu ◽  
Zhen Kun Huang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Solid State ◽  
Liquid Phase ◽  
Liquid Phase Sintering ◽  
Microstructure Observation ◽  
Sic Ceramics ◽  
Solid State Sintering ◽  
Scanning Electron

The present work observed and analyzed the microstructures of various starting powders including SiC, AlN-R (Y / La) 2O3 as additives for LPSing (Liquid Phase Sintering), B/C additives for SSSing (Solid State Sintering), as well as the spray granulated powders as comparison, by using scanning electron microscopy SEM. The microstructure of molded green bodies was also posted. Present paper opens out the characters of the various perfect and defect of microstructures of these samples. Their effect on the processing and properties of SiC ceramics was analyzed and discussed.

An Al13Co4 phase in the Al–Cu–Co alloy system

1992 ◽  
Vol 7 (5) ◽  
pp. 1100-1103 ◽  
Author(s):  
B. Grushko ◽  
Ch. Freiburg
Keyword(s):  
Electron Microscopy ◽  
Phase Diagram ◽  
Scanning Electron Microscopy ◽  
Liquid Phase ◽  
Alloy System ◽  
Homogeneity Region ◽  
X Ray ◽  
Decagonal Phase ◽  
Scanning Electron

A part of the Al–Cu–Co phase diagram adjacent to the Al13Co4 composition was studied at 800 °C by scanning electron microscopy and x-ray diffractometry. The homogeneity region of the Al13Co4 phase was found to extend up to 6 at. % Cu. At 800 °C this phase is in equilibrium with Al(Co, Cu), Al5Co2, Al9Co2, the decagonal phase, and a liquid phase. The existence of the Y-phase and Al3Co was not confirmed at this temperature.

Preparation of Molybdenum High Speed Tool Steels with Addition of Niobium Carbide by Powder Metallurgy Techniques

2014 ◽  
Vol 802 ◽  
pp. 102-107 ◽  
Author(s):  
Oscar Olimpio de Araújo Filho ◽  
Rodrigo Tecchio Antonello ◽  
Cezar Henrique Gonzalez ◽  
Severino Leopoldino Urtiga Filho ◽  
Francisco Ambrozio Filho
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Powder Metallurgy ◽  
Liquid Phase ◽  
High Speed ◽  
Niobium Carbide ◽  
High Energy ◽  
Tool Steels ◽  
Vacuum Sintering ◽  
Scanning Electron

High speed steels processed by Powder Metallurgy (PM) techniques present better mechanical properties when compared with similar steels obtained by the conventional process of cast to ingot and hot working. PM techniques produce improved microstructures with smaller and better distribution of carbides. Liquid phase sintering high speed steel seems to be a cheaper processing route in the manufacturing of tool steels if compared to the well-known and expansive hot isostatic pressing high speed steels. The introduction of niobium as alloying element began with the object of replacing elements like vanadium (V) and tungsten (W). Phase liquid sintering consists in a manufacturing technique to process high speed steels by powder metallurgy. The aim of this work of research is to process and obtain AISI M2 and M3:2 with and without the addition of niobium carbide by high energy milling, cold uniaxial compaction and vacuum sintering in the presence of a liquid phase. The powders of the AISI M2 and M3:2 were processed by high energy milling adding a small quantity of niobium carbide (6% in mass), then the powders were characterized by means of X-ray diffraction (XRD) and scanning electron Microscopy (SEM) plus energy dispersion spectroscopy (EDS) in order to evaluate the milling process. The powders of the AISI M2 and M3:2 with the addition of niobium carbide (NbC) were uniaxially cold compacted and then submitted to vacuum sintering. The sintered samples had their microstructure, porosity and carbide distribution observed and evaluated by means of Scanning Electron Microscopy (SEM) and the mechanical property of hardness was investigated by means of Vickers hardness tests. At least five samples of each steel were investigated.

scholarly journals In-Situ Observation for Formations of Gold Micrometer-Sized Particles in Liquid Phase Using Atmospheric Scanning Electron Microscopy (ASEM)

2018 ◽  
Vol 59 (1) ◽  
pp. 146-149 ◽  
Author(s):  
Yasunari Matsuno ◽  
Eri Okonogi ◽  
Akihiro Yoshimura ◽  
Mari Sato ◽  
Chikara Sato
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Liquid Phase ◽  
Scanning Electron

About the Structure Cu-Al2O3 Joints Obtained by Diffusion Bonding

2006 ◽  
Vol 220 (3) ◽  
pp. 439-445 ◽  
Author(s):  
A Krzyńska ◽  
W Włosiński ◽  
M Kaczorowski
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Liquid Phase ◽  
Interfacial Layer ◽  
Complex Oxide ◽  
Solidification Condition ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Electron

The joint copper-alumina obtained at a solidification condition of Cu/Cu2O eutectic was studied. Experiments involved many different techniques, such as scanning electron microscopy (SEM), X-ray diffractometry, X-ray microanalysis, and transmission electron microscopy (TEM). It was observed that a thin inhomogeneous interfacial layer is present between Cu and Al2O3 ceramics and it consists of two sublayers: the first is nanocrystalline complex oxide CuAlO2. This layer changes progressively into a crystalline CuAl2O4 sublayer. A model of liquid phase bonding between copper and alumina is proposed.

DIFFUSION TEXTURE GROWTH OF Bi-Pb-Sr-Ca-Cu-O SUPERCONDUCTORS

1991 ◽  
Vol 05 (27) ◽  
pp. 1817-1827 ◽  
Author(s):  
N.X. TAN ◽  
A.J. BOURDILLON ◽  
W.H. TSAI
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Scanning Electron Microscopy ◽  
Differential Thermal Analysis ◽  
Liquid Phase ◽  
Thick Fiber ◽  
Platelet Morphology ◽  
Gravitational Pull ◽  
Kinetics Of ◽  
Scanning Electron

Typically, Bi-Sr-Ca-Cu-O superconductors have a peculiar crystal platelet morphology caused by preferred orientations during crystal growth. Aligned platelets can be formed by reaction between Pb-Bi-O and a ceramic precursor, such as SrCaCu2O4+y. The alignment is due to gravitational pull on the liquid phase during sintering. The processing, microstructure and superconducting transport properties of these aligned BSCCO materials have been characterized. Scanning electron microscopy shows that thick, fiber-textured, films grow in single domains. Zero resistivity at 100 K was observed in a textured specimen sintered for 100 hours. With differential thermal analysis, the flux action of lead, which accelerates the kinetics of Bi 2 Sr 2 Ca 2 Cu 3 O 10+y formation, is understood.

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