Paper Title:
Novel Processing of Porous Titanium Composite for Producing Open Cell Structure
  Abstract

Processing technique to produce open-cell porous titanium composite was developed. One of the outstanding benefits of porous titanium composite is both physical and mechanical properties can be controlled widely by changing the metal/ceramic fraction and cell structures. In this work, porous titanium composite was fabricated by a chemical reaction between titanium powder and boron carbide (B4C) powder. The reactions between titanium and B4C generates a large amount of latent heat and, therefore, it was a combustion and self-propagating mode. Precursors were made by compacting the starting powder blend (Ti and B4C), and heated in an induction furnace to induce the reaction. The reaction was strongly exothermic and, therefore, the precursor was sintered by its latent heat when the Ti/B4C blending ratio was appropriate. The reaction products were titanium boride (TiB and/or TiB2) and titanium carbide (TiC). By controlling the Ti/B4C blending ratio, it was possible to control the volume fraction of reaction products in titanium matrix. The combustion synthesized titanium composite was porous and its cell structure was strongly affected by the processing condition of the precursor (porosity and Ti/B4C blending ratio). High porosity with open pores was obtained with small Ti/B4C ratios and high porosity of the precursor, while the cell structure was closed and spherical with high Ti/B4C ratio. The cell-wall size was varied from several tens of microns to about 500 microns by changing the combustion temperature.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
1004-1009
DOI
10.4028/www.scientific.net/MSF.539-543.1004
Citation
M. Kobashi, N. Kanetake, "Novel Processing of Porous Titanium Composite for Producing Open Cell Structure", Materials Science Forum, Vols. 539-543, pp. 1004-1009, 2007
Online since
March 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Cun Zhu Nie, Jia Jun Gu, Jun Liang Liu, Di Zhang
Abstract:The microstructures and tensile performance of B4C particulate reinforced 2024 Al alloy matrix composites produced by mechanical alloying...
195
Authors: Xiao Hong You, Fang Wang, Lu Cai Wang
Abstract:Based on making principle of aluminum foams and semi-soild forming technology, a two-stage foaming process for Al-Si alloy foam named...
2710
Authors: Li Guo Wang, Xiao Guang Zhang, Shi Qi Guo, Ai Min Wang, Xiu Ju Wang, Si Quan Liu
Abstract:Hydrophilic Polyvinylidene fluoride (PVDF) flat ultrafiltration membranes were prepared by wet-spinning method. The influence of blending...
691
Authors: Ming Yan Gu, Xu Hui Liu, Biao Ma, Jia Xin Li
Chapter 8: Energy Saving, Environmental Protection, Low Carbon Ideas
Abstract:In this study, the combustion behaviors of three kinds of coal and their mixtures under the pure oxygen and air atmosphere were studied by...
882
Authors: Jian Wei Mao, Yuan Fei Han, Wei Jie Lu, Li Qiang Wang
Chapter 4: Advanced Metal Matrix Composites
Abstract:The weldability of in-situ titanium matrix composites (TMCs) was studied using the gas tungsten arc welding (GTAW). The effects of GTAW on...
436