F A Müller

Friedrich Schiller University Jena

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Uwe Gbureck

Universitätsklinikum Würzburg

Kirsten Wunder

University of Würzburg

Katharina Zorn

Friedrich Schiller University Jena

Elke Vorndran

University of Würzburg

Claus Moseke

Technische Hochschule Mittelhessen

Isabell Biermann

Universitätsklinikum Würzburg

Cooperative Institutions

University of Würzburg

Universitätsklinikum Würzburg

Helmholtz Centre for Infection Research

University of Duisburg-Essen

Bavarian Polymer Institute

Universidad Autónoma de Madrid

Klinikum Würzburg Mitte

RMS Foundation

McGill University

University of Birmingham

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Hydraulic setting Mg₃(PO₄)₂powders for 3D printing technology

Advances in Applied Ceramics Structural Functional and Bioceramics (2011)

Elke Vorndran Kirsten Wunder Claus Moseke Isabell Biermann F A Müller

AbstractThree-dimensional powder printing was used in this study to fabricate custom made magnesium phosphate based structures. In a first step, farringtonite [Mg3(PO4)2] powders were synthesised by sintering and subsequent grinding. Optimised powders suitable for printing were obtained after 60 min of grinding, which resulted in a medium particle size of 16 μm. These powders were reacted with binder liquids consisting of 2M K2HPO4, 0·5M (NH4)2HPO4 or 20%H3PO4 to form a matrix of either struvite-(K) (MgKPO4.6H2O), struvite (MgNH4PO4.6H2O) or newberyite (MgHPO4.3H2O) by a hydraulic setting reaction. While printing of struvite-(K) was not possible due to the long setting time of this cement system, both newberyite and struvite samples could be processed with good dimensional accuracy. Strength was initially low after printing, namely in the range of 1·3–2·8 MPa; however, additional post-hardening in the binders increased the compressive strength to a maximum of 10 MPa for struvite and 36 MPa for newberyite. This was accompanied by a higher degree of conversion to the setting products, as evidenced by X-ray diffraction analysis. Magnesium phosphate based structures prepared by three-dimensional printing may find an application as biodegradable bone substitutes or can be used for the rapid manufacturing of moulds for metal casting, as demonstrated in this study.

Struvite

Magnesium phosphate

10.1179/1743676111y.0000000030

Cite

Citations (35)