چكيده به لاتين
Three-dimensional (3D) printing technology has become an effective method for parts manufacturing and got a certain application in many fields. Powder based 3D printing allows for a wide variety of materials such as metals, ceramics, polymers and other powders, to be studied. Binder jetting is useful technology to preparing ceramic parts because it can overcome different problems, such as the shrinkage of the sintering process, that emerge in typical ceramic preparation process and the diffculty to prepare complex-shaped porous ceramic parts. In addition, this method reduces the costs and usage raw material. Firstly, should modify the initial powder to printing the parts with suitable features. In this research some significant parameters (like particle size distribution, binder composition, percentage of binder and preparation method) were investigated and modified to reach printable powder. After printing the parts, the sintering cycle was studied. Moreover, the fused silica printed parts were compared with pressed parts. Amongst sintered pressed samples, at 1400 ᵒC the highest bulk density (1.85 g.cm-3) was obtained. The surface of sintered printed samples at 1500 ᵒC were glassy, however their strength as less as that to examine physical and mechanical properties. Therefore, microstructure and phase transformation were investigated.
