A study of interface reaction zone in a SiC fibre/Ti-17 composite

In metal matrix composite, the matrix and reinforced body is different in physical and chemical properties. The transition effect of reaction zone between the matrix and reinforced body is the hot point in research aboat metal matrix composite. The steel substrat casting tungsten carbide particle surface reinforced compostie is research object in this article. The interface reaction zone is measured by EDS line scaning. The problem is solved by statistic that interference between scaning neighbour points leads to the emergence of sawtooth wave, the processed curve is beneficial to observe. The effect and effect curve of W、Mo、Ni addion is received in the interface reaction zone.

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The influence of interface reaction zone on interfacial fracture toughness of SiC fiber reinforced titanium matrix composites

Composite Interfaces ◽

10.1080/09276440.2018.1440847 ◽

2018 ◽

Vol 25 (10) ◽

pp. 929-947 ◽

Cited By ~ 3

Author(s):

Q. Sun ◽

Y. Q. Yang ◽

B. Huang ◽

X. Luo ◽

C. L. Xue

Keyword(s):

Fracture Toughness ◽

Reaction Zone ◽

Interface Reaction ◽

Interfacial Fracture ◽

Matrix Composites ◽

Interfacial Fracture Toughness ◽

Fiber Reinforced ◽

Titanium Matrix ◽

Titanium Matrix Composites ◽

Sic Fiber

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Fabricating boride layer on the titanium surface to optimize microstructure of the Ti/Al interface reaction zone

Materials Letters ◽

10.1016/j.matlet.2021.131440 ◽

2021 ◽

pp. 131440

Author(s):

Zhijie Zhang ◽

Jian Huang

Keyword(s):

Reaction Zone ◽

Titanium Surface ◽

Interface Reaction ◽

Boride Layer

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TEM characterization of reaction zone in a SiC fiber-reinforced titanium alloy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100105758 ◽

1988 ◽

Vol 46 ◽

pp. 738-739

Author(s):

G. Das ◽

R. E. Omlor

Keyword(s):

Titanium Alloys ◽

Reaction Zone ◽

Carbon Layer ◽

Fiber Reinforced ◽

Reaction Products ◽

Sic Fibers ◽

Sic Fiber ◽

The Matrix ◽

Immense Potential

Fiber reinforced titanium alloys hold immense potential for applications in the aerospace industry. However, chemical reaction between the fibers and the titanium alloys at fabrication temperatures leads to the formation of brittle reaction products which limits their development. In the present study, coated SiC fibers have been used to evaluate the effects of surface coating on the reaction zone in the SiC/IMI829 system.IMI829 (Ti-5.5A1-3.5Sn-3.0Zr-0.3Mo-1Nb-0.3Si), a near alpha alloy, in the form of PREP powder (-35 mesh), was used a茸 the matrix. CVD grown AVCO SCS-6 SiC fibers were used as discontinuous reinforcements. These fibers of 142μm diameter contained an overlayer with high Si/C ratio on top of an amorphous carbon layer, the thickness of the coating being ∽ 1μm. SCS-6 fibers, broken into ∽ 2mm lengths, were mixed with IMI829 powder (representing < 0.1vol%) and the mixture was consolidated by HIP'ing at 871°C/0. 28GPa/4h.

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Artificial dual solid-electrolyte interfaces based on in situ organothiol transformation in lithium sulfur battery

Nature Communications ◽

10.1038/s41467-021-23155-3 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Wei Guo ◽

Wanying Zhang ◽

Yubing Si ◽

Donghai Wang ◽

Yongzhu Fu ◽

...

Keyword(s):

Solid Electrolyte ◽

Interface Reaction ◽

Interfacial Instability ◽

Anode Surface ◽

Commercial Application ◽

Lithium Metal ◽

Metal Anode ◽

Lithium Metal Anode ◽

Lithium Sulfur

AbstractThe interfacial instability of the lithium-metal anode and shuttling of lithium polysulfides in lithium-sulfur (Li-S) batteries hinder the commercial application. Herein, we report a bifunctional electrolyte additive, i.e., 1,3,5-benzenetrithiol (BTT), which is used to construct solid-electrolyte interfaces (SEIs) on both electrodes from in situ organothiol transformation. BTT reacts with lithium metal to form lithium 1,3,5-benzenetrithiolate depositing on the anode surface, enabling reversible lithium deposition/stripping. BTT also reacts with sulfur to form an oligomer/polymer SEI covering the cathode surface, reducing the dissolution and shuttling of lithium polysulfides. The Li–S cell with BTT delivers a specific discharge capacity of 1,239 mAh g−1 (based on sulfur), and high cycling stability of over 300 cycles at 1C rate. A Li–S pouch cell with BTT is also evaluated to prove the concept. This study constructs an ingenious interface reaction based on bond chemistry, aiming to solve the inherent problems of Li–S batteries.

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