研究目的
Investigating the effects of the ratio of glass powder to epoxy resin and the sintering process on the properties and microstructure of soda lime glass-ceramics fabricated by selective laser sintering.
研究成果
The research demonstrated that selective laser sintering can be used to fabricate complex-shaped glass-ceramics with controlled properties by adjusting the glass powder to epoxy resin ratio and sintering parameters. The optimal conditions were identified as a mass ratio of 18:1 and sintering at 740℃ for 3 hours, achieving a bending strength of 95.45 MPa and a shrinkage rate of 21.11%.
研究不足
The study notes that the density and mechanical properties of 3D printed glass-ceramics have a gap compared to commercial glass-ceramics. The presence of pores in the glass samples limits the densification achievable through sintering.
1：Experimental Design and Method Selection:
The study used selective laser sintering (SLS) technology to fabricate glass-ceramics, investigating the impact of glass powder to epoxy resin ratio and sintering parameters on the final product's properties.
2：Sample Selection and Data Sources:
Commercial soda lime glass powder and epoxy resin powder were mixed in various ratios and processed using SLS.
3：List of Experimental Equipment and Materials:
Equipment included a three-dimensional powder mixer, HK S320 powder sintering rapid prototyping system, differential scanning calorimeter, X-ray diffraction machine, scanning electron microscope, and electronic universal material testing machine.
4：Experimental Procedures and Operational Workflow:
The mixed powders were sintered using SLS, followed by degreasing and sintering at various temperatures and holding times.
5：Data Analysis Methods:
The properties of the sintered samples were analyzed using density measurements, shrinkage tests, bending strength tests, and microstructural analysis.
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