Method for strengthening and toughening biological ceramic material by use of graphene and preparing artificial bone prepared from material

Method for strengthening and toughening biological ceramic material by use of graphene and preparing artificial bone prepared from material

  • CN 103,656,752 A
  • Filed: 09/25/2012
  • Published: 03/26/2014
  • Est. Priority Date: 09/25/2012
  • Status: Active Application
First Claim
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1. one kind is utilized Graphene Strengthening and Toughening biological active ceramic material, and adopt Selective Laser Sintering (Selective laser sintering, SLS) prepare Graphene/bio-ceramic artificial bone'"'"'s method, thereby the range of application of bioactive ceramics is expanded to bone reparation and the replacement at human bearing position, key step comprises:

  • (1) raw material preparation;

    utilize electronic balance to weigh in proportion a certain amount of bioactive ceramic powder and graphene powder, obtain mixed uniformly starting powder after utilizing mechanical mixing to grind 30min, wherein the mass fraction of Graphene is 0-5wt%;

    (2) laser sintered;

    on the work platforms of moulding cylinder, to lay uniformly one deck mixed-powder, powder layer thickness is 0.1-0.2mm, according to artificial bone two-dimensional section information, control laser beam and selectively scan sintered powder, by the technology of being layering, obtain three-dimensional artificial bone;

    (3) clear powder is processed;

    work platforms certain height that declines, and artificial bone is taken out and is utilized from moulding cylinder the equipment such as hairbrush and air gun remove after unsintered mixed-powder, obtain having the Graphene/bio-ceramic artificial bone of loose structure.

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