Thermal Properties of Isolated and in situ Lignin

2010 ◽  
pp. 301-319 ◽  
Author(s):  
Hyoe Hatakeyama ◽  
Tatsuko Hatakeyama
Keyword(s):  
Thermal Properties

scholarly journals 3C-SiC Nanowires In-Situ Modified Carbon/Carbon Composites and Their Effect on Mechanical and Thermal Properties

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 894 ◽  
Author(s):  
Hongjiao Lin ◽  
Hejun Li ◽  
Qingliang Shen ◽  
Xiaohong Shi ◽  
Tao Feng ◽  
...  
Keyword(s):  
Shear Strength ◽  
Thermal Properties ◽  
Sol Gel ◽  
Interlaminar Shear Strength ◽  
Mechanical And Thermal Properties ◽  
Initial Oxidation ◽  
Sic Nanowires ◽  
Out Of Plane ◽  
Interlaminar Shear

An in-situ, catalyst-free method for synthesizing 3C-SiC ceramic nanowires (SiCNWs) inside carbon–carbon (C/C) composites was successfully achieved. Obtained samples in different stages were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman scattering spectroscopy. Results demonstrated that the combination of sol-gel impregnation and carbothermal reduction was an efficient method for in-situ SiCNW synthesis, inside C/C composites. Thermal properties and mechanical behaviors—including out-of-plane and in-plane compressive strengths, as well as interlaminar shear strength (ILLS) of SiCNW modified C/C composites—were investigated. By introducing SiCNWs, the initial oxidation temperature of C/C was increased remarkably. Meanwhile, out-of-plane and in-plane compressive strengths, as well as interlaminar shear strength (ILLS) of C/C composites were increased by 249.3%, 109.2%, and 190.0%, respectively. This significant improvement resulted from simultaneous reinforcement between the fiber/matrix (F/M) and matrix/matrix (M/M) interfaces, based on analysis of the fracture mechanism.

Microstructure, mechanical, and thermal properties of in situ-synthesized (ZrB2+SiC)/Zr2[Al(Si)]4C5 composites

2013 ◽  
Vol 39 (7) ◽  
pp. 8559-8563 ◽  
Author(s):  
D.D. Guo ◽  
J. Yang ◽  
L. Yu ◽  
L.M. Pan ◽  
T. Qiu ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Mechanical And Thermal Properties

Development of Some Promising Approaches for The Toughening of High-Temperature Polymers

1998 ◽  
Vol 519 ◽  
Author(s):  
C. Kumudinie ◽  
J. K. Premachandra ◽  
J. E. Mark ◽  
T. D. Dang ◽  
M. R. Unroe ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Optical Properties ◽  
Thermal Properties ◽  
High Temperature ◽  
Polymer Matrix ◽  
Hybrid Material ◽  
Arylene Ether ◽  
Rubbery Phase ◽  
Maximum Extensibility

AbstractHigh-temperature poly(arylene ether) and hydroxypolybenzoxazole polymers were toughened using dispersed rubbery phases. This rubbery phase was a hybrid material which was in-situ generated within the polymer matrix using mixtures of partially-hydrolyzable trialkoxy and dialkoxy organosilanes with a fully hydrolyzable tetraalkoxysilane. The resulting materials were characterized with regard to their structures, mechanical properties (modulus, ultimate strength, maximum extensibility, and toughness), thermal properties, optical properties, and tendencies to absorb water. Some of the results are presented here.

scholarly journals Structural, morphological and thermal properties of nanocomposites poly(GMA)/clay prepared by ultrasound and in-situ polymerization

2018 ◽  
Vol 48 ◽  
pp. 188-198 ◽  
Author(s):  
Zakaria Cherifi ◽  
Bouhadjar Boukoussa ◽  
Aniss Zaoui ◽  
Mohammed Belbachir ◽  
Rachid Meghabar
Keyword(s):  
Thermal Properties ◽  
In Situ Polymerization
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