Pore Filling of a Carbon Matrix by Melt-Impregnated LiBH4

2021 ◽  
Author(s):  
Alejandra A. Martínez ◽  
Aurelien Gasnier ◽  
Fabiana C. Gennari
Keyword(s):  
Carbon Matrix ◽  
Pore Filling

Environmental microscopy of capillary stress-induced strain behavior in ambient-pressure aerogels

1996 ◽  
Vol 54 ◽  
pp. 850-851
Author(s):  
Sudeep M. Rao ◽  
Joshua Samuel ◽  
Sai S. Prakash ◽  
C. Jeffrey Brinker
Keyword(s):  
Silica Aerogel ◽  
Ambient Pressure ◽  
Drying Shrinkage ◽  
Pore Filling ◽  
Silica Network ◽  
Strain Behavior ◽  
Partially Saturated ◽  
Capillary Stress ◽  
Wetting Liquid ◽  
Aerogel Films

Ambient pressure silica aerogel thin films have recently been prepared by exploiting reversible drying shrinkage caused by derivatization of the internal gel surface. Aerogels have porosities of upto 99.9% and due to the small size of the pores (few nanometers), large capillary stresses are produced in gels that are partially saturated with a wetting liquid. As a result of these capillary stresses, the flexible silica network undergoes strain which has been observed using environmental microscopy. This technique allows variation of the equilibrium vapor pressure and temperature, and a simultaneous monitoring of the deformation of the unconstrained film thickness. We have observed >600% deformation during the pore-filling and pore-emptying cycles. In this presentation, we discuss the unique stress-strain behavior of these films.Ref.: Sai S. Prakash, C. Jeffrey Brinker, Alan J. Hurd & Sudeep M. Rao, "Silica aerogel films prepared at ambient pressure by using surface derivatization to induce reversible drying shrinkage", Nature. Vol. 374, 30 March, 1995, 439-443.

Formation of Nanostructured Coating Based on the Amorphous Carbon Matrix and Silver Nanocrystallites

2016 ◽  
Vol 8 (4(1)) ◽  
pp. 04019-1-04019-6 ◽  
Author(s):  
A. Ya. Kolpakov ◽  
◽  
A. I. Poplavsky ◽  
S. S. Manokhin ◽  
M. E. Galkina ◽  
...  
Keyword(s):  
Amorphous Carbon ◽  
Carbon Matrix ◽  
Nanostructured Coating

The system of indicators of the quality of the carbon-carbon composite materials and technologies of their production

2018 ◽  
pp. 127-132
Author(s):  
T. N. Antipova ◽  
D. S. Shiroyan
Keyword(s):  
Composite Material ◽  
Low Cost ◽  
Experimental Studies ◽  
Carbon Matrix ◽  
Carbon Composite ◽  
Optimal Number ◽  
Laboratory Equipment ◽  
Carbon Composite Material ◽  
Carbon Composite Materials

The system of indicators of quality of carbon-carbon composite material and technological operations of its production is proved in the work. As a result of the experimental studies, with respect to the existing laboratory equipment, the optimal number of cycles of saturation of the reinforcing frame with a carbon matrix is determined. It was found that to obtain a carbon-carbon composite material with a low cost and the required quality indicators, it is necessary to introduce additional parameters of the pitch melt at the impregnation stage.

Controllable Coordination of Phosphotungstic Acid-Modified Carbon Matrix for Anchoring Different Sizes of Pt Species: From Single Atoms, Subnanoclusters to Nanoparticles

2021 ◽  
Author(s):  
Jiazhe Li ◽  
Zhiyuan Yan ◽  
Lingxiang Bao ◽  
Cheng-Hui Sun ◽  
Si-Ping Pang
Keyword(s):  
Phosphotungstic Acid ◽  
Carbon Matrix ◽  
High Density ◽  
Coordination Environment ◽  
Single Atoms

Pt species with different sizes uniformly dispersed on phosphotungstic (PTA) acid modified carbon matrix (PTA-C) were controllably synthesized by manipulating the coordination environment. The results indicate that high-density and well-defined...

Ultrafast and Durable Li/Na storage by an Iron Selenide Anode Using an Elastic Hierarchical Structure

2021 ◽  
Author(s):  
Peng Jing ◽  
Qiong Wang ◽  
Chunxiang Xian ◽  
Liyu Du ◽  
Yin Zhang ◽  
...  
Keyword(s):  
Hierarchical Structure ◽  
Carbon Matrix ◽  
Iron Selenide ◽  
Hierarchical Framework ◽  
Unique Structure ◽  
Graphene Coating ◽  
Elastic Characteristics

FeSe nanoparticles were encapsulated into polycystic carbon matrix (FeSe/C) followed by graphene coating (GF@FeSe/C) via a facile strategy, constructing a hierarchical framework with porous and elastic characteristics. This unique structure...

Embedding anion-doped Fe7S8 in N-doped carbon matrix and shell for fast and stable sodium storage

2021 ◽  
pp. 124456
Author(s):  
Wenpei Kang ◽  
Yuyu Wang ◽  
Yufen Wan ◽  
Yongxiao Tuo ◽  
Xiaotong Wang ◽  
...  
Keyword(s):  
Carbon Matrix ◽  
Sodium Storage

scholarly journals Mechanical properties of Carbon-matrix composites for a blade runner’s artificial leg

2021 ◽  
Vol 8 (1) ◽  
pp. 1923382
Author(s):  
Rifky Ismail ◽  
Dewi Paras Utami ◽  
Mochamad Arid Irfai ◽  
J. Jamari ◽  
A.P. Bayuseno
Keyword(s):  
Mechanical Properties ◽  
Carbon Matrix ◽  
Matrix Composites
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