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Factors influencing the mechanical properties of the 3D printed product out of magnesium potassium phosphate cement material
Cao X.; Li Z.; Liang R.; Sun G.
2016
Source PublicationProceedings of the 11th fib International PhD Symposium in Civil Engineering, FIB 2016
Pages411-418
AbstractA three dimensional printer was developed and installed, and the specimens were successfully printed at a maximum compression strength of 19.4 MPa at the age of 28 days, with magnesium potassium phosphate cement (MKPC) material as the raw material. The printing process makes a sandwich-like structure from a group of MKPC sticks, with average diameter 1mm and printed side by side, to form a layer, and continuous layers to a 3D object, by jetting water to the pre-mixed powder of ball-milled magnesium oxide and potassium dihydrogen phosphate (KDP), instead of mixing water together with the powder at the same time. Preliminary mechanical test results show obvious variation when loading in different dimensions, due to main contribution from the MKPC sticks, followed by the bonding of neighbour sticks, and the layer joint bonding at last. The joint space of the neighbour sticks and layers have been further studied to the mechanical properties of the final result to verify that the layer thickness and the stick/layer combination degree is the key factor to the mechanical properties of the 3D printed result.
KeywordCombination degree Magnesium potassium phosphate cement Three dimensional printing
URLView the original
Language英語
Fulltext Access
Document TypeConference paper
CollectionUniversity of Macau
AffiliationHong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Cao X.,Li Z.,Liang R.,et al. Factors influencing the mechanical properties of the 3D printed product out of magnesium potassium phosphate cement material[C],2016:411-418.
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