Porous Metals of Northwest Institute for Non-Ferrous Metal Research

Tang, Hui Ping; Liao, Ji Chang; Zhu, Ji Lei

doi:10.4028/www.scientific.net/MSF.534-536.1281

Paper Titles

Influences of Doping Methods on Microstructure and Fracture Toughness of Mo-La Alloys
p.1265

Mechanical Properties of Refractory Metals at Extremely High Temperatures
p.1269

Microstructures of W-Mo-Ni-Fe Heavy Alloys
p.1273

Neutron Diffraction Analysis of Tungsten-Molybdenum-Disilicide Powders Formed by Self-Propagating High Temperature Synthesis
p.1277

Porous Metals of Northwest Institute for Non-Ferrous Metal Research
p.1281

Powder Metallurgy of Tungsten Alloy
p.1285

Study on Oxidation Behavior of (W,Mo)Si₂ Powders in Air at 400, 500 and 600°C
p.1289

The Effects of Molybdenum Content on the Dynamic Properties of Tungsten-Based Heavy Alloys
p.1293

Bulk Amorphous and/or Nanocrystalline Finemet Alloy Prepared by Super-High-Pressure Consolidation
p.1297

HomeMaterials Science ForumProgress in Powder MetallurgyPorous Metals of Northwest Institute for...

Porous Metals of Northwest Institute for Non-Ferrous Metal Research

Abstract:

In recent years, the research in porous metal got rapid development in China, especial in Northwest Institute for Non-ferrous Metal Research (NIN). Many porous metals with different raw material and different shapes were developed, which successfully employed in many fields. We believe we will earn more rapid development in the future.

Info:

Periodical:

Materials Science Forum (Volumes 534-536)

Main Theme:

Progress in Powder Metallurgy

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim

Pages:

1281-1284

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.534-536.1281

Citation:

H. P. Tang et al., "Porous Metals of Northwest Institute for Non-Ferrous Metal Research", Materials Science Forum, Vols. 534-536, pp. 1281-1284, 2007

Online since:

January 2007

Authors:

Hui Ping Tang, Ji Chang Liao, Ji Lei Zhu

Keywords:

Porous Matel, Porous Membrane, Research and Development (R&D)

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Price:

$38.00

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References

[1] Tang Huiping, Liao Jichang, in: Porous Metals-China Materials Engering Canon, Chemical Industry Press (2006), Vol. 14, p: 924-933.

[2] Liao Jichang, Zuo Caixia and Wu Bende: Study of the permeability of a Metal Fiber Medium with Graded Pore Size, Rare Metal Materials and Engineering, Vol. 27, No. 5 (1998), p: 286-289.

[3] Information on http: /www. c-wmm. com.

[4] Wang Qiangbin, Tang Huiping and Xi Zhengping: Rare Metal Material and Engineering, Vol. 34, Suppl. 3 (2005), p: 596-598 Fig. 8 Double layers metal membrane Fig. 9 Single layer metal membrane.

Paper TitlePages

Fabrication of SiC/SiC Composites Using both Chopped Fiber and a Hybrid Reinforcement of Chopped and Continuous Fibers

Authors: Qian Feng, Shao Ming Dong, Yu Sheng Ding, Qing Zhou, Akira Kohyama

Abstract: Chopped fiber and a hybrid reinforcement of chopped and continuous fibers were used for fabricating SiC/SiC composites. Under the selected sintering pressure, the composite sintered at lower temperature (1820°C) had lower density. Increasing temperature to 1850°C, the density of the composite reached at a higher level. However, pores still existed and mainly distributed in the areas the fibers accumulated, especially inside of the fiber bundles. Densely sintered matrix still could be found in the composite sintered at 1820°C, 15 MPa. In the areas with the fibers accumulated, matrix was relatively weak so that the cracks were easily propagated leading to the delamination during bending test. When continuous fiber was included into the chopped fiber reinforced composite, a hybrid reinforcing mechanism was obtained. This kind of composite had obviously improved toughness and strength. On the fracture surface, the pulled out fibers that were perpendicular to the fracture surface were increased.

1257

Study on the Tensile Fracture Characteristics of Cars Oil Filter Materials

Authors: Jian Yong Feng, Jian Chun Zhang, Hua Zhang

Abstract: The oil filter materials are frequently subjected to abrading and all kinds of friction and making the materials suffered from damage,consequently,the property and service life of the filter materials is reduced.So the purpose of this thesis is to research the tensile performance of the automobile oil filter material and according to constant speed tensile test to measure the macro fracture characteristics,tensile property in the process of before and after tensile testing,tensile fracture form and the math expression.Then compared the breaking strength,breaking elongation,elongation at break and breaking work of these ten oil filter materials.Hope that through the study on the tensile performance of the oil filter materials and summarizes the damage mechanism and tensile fracture form,in order to provides a new way to develop the new material.

2393

Porous Metal-Fiber Sintered Felt by Multi-Tooth Cutting and Sintering- Morphological Analysis and Mechanisms

Authors: Wei Yuan, Yong Tang, Xiao Jun Yang

Abstract: This study provides a series of investigation on the morphological characteristics and related mechanisms of a porous metal-fiber sintered felt (PMFSF). Multi-tooth cutting and high-temperature solid-phase sintering are used to create the PMFSF. Based on both modeling and experimental methods, the results suggest that the produced fiber has rough surface and curled shape due to cutting deformation. The processing parameters and material mechanical property both have significant effects on formation of fiber morphology. Results also reveal that the fibers in a PMFSF is randomly distributed and connected with each other by forming sintering necks. Besides, the influences of sintering parameters are also analyzed in this work.

1102

Research of Fiber Radar Absorbing Materials

Authors: Sai Nan Wei, Rui Zhou Li, Li Chen, Ji Ming Yao

Abstract: Electromagnetic parameters and absorbing properties of fiber absorbents (carbon fiber, SiC fiber and polycrystalline iron fiber) were introduced. The influences of the arrangement, thickness and content of the fibers on radar absorbing property were summarized. New development directions of the fiber absorbents were also indicated.

835

The Isothermal Simulation of the Un-Saturated Flow in the Dual-Scale Porous Media

Authors: Yong Jing Lee, Shi Lin Yan, Xin Ye, Zhong Jiang Feng

Abstract: Most of the mold-filling simulation theories for RTM were based on Darcy law and combined with mass conservation equation. Considering the unsaturated region in the experiment, the followings have been done in this paper: (1) first, explaining this un-saturated phenomenon as a sink effect, and amending the saturated filling mold by introducing a sink term to the mass constant equation; (2) second, achieving a simple 1d mold’s unsaturated simulation of the filling process through the compiled software pore-flow.

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