scholarly journals Evaluation of dynamic modulus measurement for C/C‐SiC composites at different temperatures

2019 ◽  
Vol 16 (5) ◽  
pp. 1723-1733 ◽  
Author(s):  
Sandrine Hönig ◽  
Dietmar Koch ◽  
Steffen Weber ◽  
Simon Etzold ◽  
Thorsten Tonnesen ◽  
...  
Keyword(s):  
Dynamic Modulus ◽  
Different Temperatures ◽  
Modulus Measurement ◽  
Sic Composites

Experimental Analysis of Dynamic Modulus and Phase Angle of High Modulus Asphalt Mixture

2011 ◽  
Vol 243-249 ◽  
pp. 4220-4225
Author(s):  
Rui Bo Ren ◽  
Li Tao Geng ◽  
Li Zhi Wang ◽  
Peng Wang
Keyword(s):  
Phase Angle ◽  
Dynamic Modulus ◽  
Asphalt Mixture ◽  
Performance Testing ◽  
Asphalt Mixtures ◽  
Testing System ◽  
High Modulus ◽  
Temperature Performance ◽  
Different Temperatures ◽  
Confining Pressures

To study the mechanical properties of high modulus asphalt mixtures, dynamic modulus and phase angle of these two mixtures are tested with Simple Performance Testing System under different temperatures, loading frequencies and confining pressures. Testing results show the superiority of high modulus asphalt mixture in aspect of high temperature performance. Furthermore, the changing rules of dynamic modulus and phase angle are also discussed.

Dynamic compressive fracture of C/SiC composites at different temperatures: Microstructure and mechanism

2017 ◽  
Vol 109 ◽  
pp. 391-399 ◽  
Author(s):  
Tao Li ◽  
Yu Duan ◽  
Kanghua Jin ◽  
Tao Suo ◽  
Xia Yu ◽  
...  
Keyword(s):  
Compressive Fracture ◽  
Different Temperatures ◽  
Sic Composites

Characteristic Analysis of Dynamic Modulus for High Modulus Asphalt Concrete

2014 ◽  
Vol 505-506 ◽  
pp. 15-18 ◽  
Author(s):  
Xiao Long Zou ◽  
Ai Min Sha ◽  
Wei Jiang ◽  
Xin Yan Huang
Keyword(s):  
Dynamic Modulus ◽  
Testing Machine ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
High Modulus ◽  
Characteristic Analysis ◽  
Modified Asphalt ◽  
Universal Testing ◽  
Different Temperatures ◽  
Dynamic Modulus Test

In order to analyze the characteristics of high modulus asphalt mixture dynamic modulus, Universal Testing Machine (UTM-25) was used for dynamic modulus test of three kinds of mixtures, which were PR Module modified asphalt mixture and PR PLAST.S modified asphalt mixture and virgin asphalt mixture, to investigate dynamic modulus and phase angle at different temperatures and frequencies. The results indicate that: the dynamic modulus order of the three asphalt mixtures is PR MODULE > PR PLAST.S > Virgin. PR MODULE asphalt mixture dynamic modulus is much larger than the other two.

Effect of Reaction between Fe and Carbide Particles on Mechanical Properties of Fe-Base Composite

2008 ◽  
Vol 55-57 ◽  
pp. 357-360 ◽  
Author(s):  
S. Chakthin ◽  
Nuchthana Poolthong ◽  
Ruangdaj Tongsri
Keyword(s):  
Mechanical Properties ◽  
Solid Solution ◽  
Carbide Particle ◽  
Sintering Temperature ◽  
Particle Sizes ◽  
Different Temperatures ◽  
Base Composite ◽  
Sic Composites ◽  
Carbide Particles ◽  
Sic Particle

Sintered Fe-5 wt. % carbide (SiC or TiC) composites have been prepared via a powder metallurgy (P/M) route. Two carbide particle sizes, < 20 µm and 20-32 µm, were mixed with Fe powder. The powder mixtures were compacted and sintered at 3 different temperatures, 1100, 1150 and 1200 °C. Microstructures of sintered Fe-5 wt. % SiC composites showed evidence of SiC decomposition. The decomposed Si and C atoms diffused into Fe particles resulting in formation of solid solution of Si and C in Fe during sintering. During cooling, the solid solution of C in Fe decomposed to pearlite structure (ferrite and cementite (Fe3C) lamellar structure). Microstructures of sintered Fe-5 wt. % TiC composites showed no evidence of TiC decomposition at the investigated sintering temperatures. Because of the reaction between SiC and Fe, tensile strength and hardness of the sintered Fe-SiC composites were higher than those of the sintered Fe. Experimental results showed that strength and hardness of the sintered Fe-SiC composites increased with increasing sintering temperature and with decreasing SiC particle size. In contrast, mechanical properties of the sintered Fe-TiC composites were inferior to those of the sintered Fe. The reason of poor mechanical properties may be attributed to poor bonding between Fe and TiC particles.

Microstructural evolution of coating-modified 3D C/SiC composites after annealing in wet oxygen at different temperatures

2010 ◽  
Vol 52 (9) ◽  
pp. 2837-2845 ◽  
Author(s):  
Siwei Li ◽  
Zude Feng ◽  
Yongsheng Liu ◽  
Wenbin Yang ◽  
Weihua Zhang ◽  
...  
Keyword(s):  
Microstructural Evolution ◽  
Different Temperatures ◽  
Sic Composites

Influence of Silicon on Performance of Al/SiC Composites

2014 ◽  
Vol 592-594 ◽  
pp. 421-425
Author(s):  
G.G. Sozhamannan ◽  
M. Muttharasan ◽  
K. Kaviarasan ◽  
S. Balasivanandha Prabu ◽  
V.S.K. Venkatachalapathy
Keyword(s):  
Hardness Test ◽  
Interface Region ◽  
Al Alloy ◽  
Interface Bonding ◽  
The Matrix ◽  
Different Temperatures ◽  
Matrix Region ◽  
Sic Composites ◽  
And Diffusion ◽  
Hardness Values

Silicon is an important alloying element in Al alloys because the presence of Si improves the hardening strength of Al alloy and improves the wetting between the matrix and the reinforcement. In the present study, Al/SiC bonded specimens were fabricated by means of different temperatures and holding times. The microstructure of the composite was examined by scanning electron microscope. The concentration of Si elements at the interface region was observed by EDS techniques and diffusion of the Si elements in the matrix region was calculated by the Arrhenius equation. The hardness test was performed at the interface region. The results revealed that processing temperatures and holding times influences the concentration of Si and the hardness values near the interface region. Keywords: Al/SiC Interface bonding; SEM; EDS analysis; Micro hardness

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