Inorganic Materials

, Volume 53, Issue 5, pp 529–535 | Cite as

Fabrication of osteoconductive Ca3–x M2x (PO4)2 (M = Na, K) calcium phosphate bioceramics by stereolithographic 3D printing

  • V. I. PutlyaevEmail author
  • P. V. Evdokimov
  • T. V. Safronova
  • E. S. Klimashina
  • N. K. Orlov


Osteoconductive ceramic implants based on Ca3–x M2x (PO4)2 (M = Na, K) double phosphates and having the Kelvin structure, tailored macropore size (in the range 50–750 μm), and a total porosity of 70–80% have been produced by stereolithographic 3D printing. We demonstrate that, to maintain the initial geometry of a model and reach sufficiently high strength characteristics of macroporous ceramics (compressive strength up to 9 MPa and fracture toughness up to 0.7 MPa m1/2), the polymer component should be removed under specially tailored heat treatment conditions. Based on our results on polymer matrix destruction kinetics, we have found heat treatment conditions that ensure a polymer removal rate no higher than 0.1 wt%/min and allow one to avoid implant cracking during the firing process.


bioceramics double calcium phosphates 3D printing stereolithography osteoconductivity Kelvin structure heat treatment strength 


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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • V. I. Putlyaev
    • 1
    Email author
  • P. V. Evdokimov
    • 1
  • T. V. Safronova
    • 1
  • E. S. Klimashina
    • 1
  • N. K. Orlov
    • 1
  1. 1.Moscow State UniversityMoscowRussia

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