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Fabrication and biological properties of bionic structure porous alumina ceramics with spherical/lamellar pores

  • Yu Fei Tang
  • , Qian Miao
  • , Ying Liu
  • , Zi Xiang Wu
  • , Wei Zhang
  • , Kang Zhao
  • Xi'an University of Technology
  • Xijing Hospital

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In order to solve the problem that low pore connectivity of the spherical porous ceramic, bionic structure porous alumina ceramics with spherical/lamellar pores were fabricated combining the adding pore-forming agent and two step freeze casting. The effects of fabrication parameters of the samples on morphologies, porosity and pore connectivity are investigated. The mechanical and biological properties of bionic structure porous alumina ceramics are also characterized. Results show that porous alumina ceramics with spherical/lamellar pores are obtained, and the lamellar pores pass through the spherical pores, which prove the pore connectivity reach 86.2%. The mechanical properties are improved by porosity gradient from the inside (highly porous) to the outside (less porous) of porous alumina. Bionic structure porous alumina ceramics with spherical/lamellar pores have better cell growth and absorbance than those with spherical or lamellar pores only since its high pore connectivity.

Original languageEnglish
Title of host publicationAdvanced Functional Materials
EditorsYafang Han, Zhongwei Gu, Qiang Fu
PublisherTrans Tech Publications Ltd
Pages367-372
Number of pages6
ISBN (Electronic)9783038353942
DOIs
StatePublished - 2015
Externally publishedYes
EventChinese Materials Congress, CMC 2014 - Chengdu, China
Duration: 4 Jul 20147 Jul 2014

Publication series

NameMaterials Science Forum
Volume815
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChinese Materials Congress, CMC 2014
Country/TerritoryChina
CityChengdu
Period4/07/147/07/14

Keywords

  • Cell absorption
  • Mechanical properties
  • Porous ceramics
  • Spherical/lamellar pores

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