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Analysis of Equivalent Oxygen Diffusivity of Particle Dispersed Composites

Mingwei LI , Jingchuan ZHU , Zhongda YIN , Gang ZENG

材料科学技术(英文)

This paper presents a new method to determine the equivalent oxygen diffusivities of particle dispersed composites. This method can be used to design FGM thermal barrier systems with the function of oxygen barrier. A qualitative explanation of the oxidation of nickel with the increment of zirconia c...

关键词: Equivalent oxygen diffusivity , null , null

Effect of Triple Annealing Treatment on Stress Relaxation of Ti-6Al-4V Alloy

Yong LIU , Jingchuan ZHU , Zhongda YIN , Mingwei LI

材料科学技术(英文)

The effect of triple annealing on stress relaxation of Ti-6Al-4V alloy as well as the microstructure after stress relaxation were studied. The results showed that triple annealing treatment enhanced the resistance of stress relaxation performance, and when the temperature was rising, this effect bec...

关键词: Triple annealing , null , null

Synthesis of MoSi2 by Mechanical Alloying

Mingwei LI , Jingchuan ZHU , Zhongda YIN , Xiaoqiang LI , Zuyan LIU , Jae-Ho Jeon

材料科学技术(英文)

The microstructure evolution of mechanical alloyed Mo-66.7%Si powder using the high-energy ball mill has been studied by X-ray diffraction and scanning electron microscopy. The results showed that MoSi2 can be synthesized by MA of Mo-66.7%Si powder mixtures. Cold welding behavior between Mo and Si p...

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Preparation and Microstructure of a Si-Mo Fused Slurry Coating on Carbon/Carbon Composites for Oxidation Protection

Haitao FANG , Jingchuan ZHU , Zhongda YIN , Jae-Ho Jeon , Yoo-Dong Hahn

材料科学技术(英文)

A coating of composition Si-40Mo (wt pct) was prepared by fused slurry coating method on the two-dimensional carbon/carbon (2D-C/C) composite to improve oxidation resistance. In the procedure of the fabrication, pure St slurry inner layer in the pre-coating was necessary to apply because of infiltra...

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