Based on conventional ion exchange method from zeolite materials, we herein report a facile synthetic procedure to prepare monoclinic celsian ceramics through thermal treatment of ion-exchanged 3D printing geopolymer precursors. In this contribution, both ion exchange process and thermal evolution of celsian precursors were systematically investigated. The results proved 3D printing Na- and K- based geopolymer were ideal precursors with low residual Na⁺ content (0.10 meq/g) and K⁺ content (0.05 meq/g) and translated into monoclinic celsian after being heated at 1400 °C. With increasing Sr²⁺ doping concentration from 20% (mole ratio) to 30% (mole ratio), more significant phase transition results (hexagonal → monoclinic) were observed. All 3D printing geopolymer precursors kept fine integrity and stable 3D structure upon ion exchange process and heating, indicating the combination of geopolymer technique and 3D printing opens up a versatile and robust way to yield monoclinic celsian ceramics and related components of complex shapes.

基于沸石材料的常规离子交换方法，我们在此报告了一种通过对离子交换的3D打印地质聚合物前体进行热处理来制备单斜晶硅质陶瓷的简便合成程序。在这一贡献中，系统地研究了离子交换过程和Celsian前驱体的热演化。结果证明，3D打印Na和K基地质聚合物是理想的前体，具有较低的残留Na ⁺含量（0.10 meq / g）和K ⁺含量（0.05 meq / g），并在1400°C加热后转化为单斜晶质的。随着Sr ^2+的增加掺杂浓度从20％（摩尔比）到30％（摩尔比），观察到更显着的相变结果（六边形→单斜晶）。所有3D打印地质聚合物前体在离子交换过程和加热后均保持了良好的完整性和稳定的3D结构，这表明地质聚合物技术和3D打印的结合开辟了一种通用且可靠的方式来生产单斜晶硅质陶瓷和复杂形状的相关组件。