Ordered pore topological structures (OPTS) provide various features such as biodegradability, cell proliferation, and matching mechanical property for bone tissue repair and ingrowth at a single platform. Therefore, the demand for OPTS have shown an unexpected rise in the field of biomedical due to trauma, deformity, and aging population, etc. Moreover, these OPTS have found widespread applications in the form of biodegradable materials. Hence, the interest in pure iron as a biodegradable material has been growing rapidly due to its better mechanical properties. However, the slow degradation rate of iron is a major challenge. Therefore, iron-based OPTS have been advantageous to limit the slow degradation rate. In the current work, OPTS have been manufactured using the novel fabrication technique comprising of micro-extrusion-based 3D printing and pressureless microwave sintering. Two dissimilar types of unit cell shapes viz. hexagonal and cubic were chosen to fabricate the OPTS with three different strut sizes such as$1.0,1.25$, and $1.5mm$. The variation in dimensions of OPTS was found to be less with respect to the designed CAD model. Moreover, the OPTS dimensions were compared to other conventional metal printing techniques such as indirect solid free form manufacturing technique. The compressive behavior of fabricated OPTS inferred Young's modulus, ultimate compressive strength, and energy absorption capacity of 136–257 MPa, 11–67.3 MPa, and 2–15 MPa, respectively. Moreover, the compressive mechanical behavior of fabricated OPTS was found to be in line with the Gibson-Ashby model. A discussion was performed to compare the results of the present study with the prior work and it was evident that properties of manufactured OPTS were obtained to lie in the desirable range, and it can be considered as for the development of orthopedic applications.

有序的孔拓扑结构（OPTS）提供各种功能，例如生物降解性，细胞增殖以及在单个平台上用于骨骼组织修复和向内生长的匹配机械性能。因此，由于创伤，畸形和人口老龄化等，对OPTS的需求已显示出在生物医学领域中的出乎意料的增长。此外，这些OPTS已经以生物可降解材料的形式得到了广泛的应用。因此，由于其更好的机械性能，人们对纯铁作为可生物降解材料的兴趣迅速增长。然而，铁的缓慢降解速率是主要挑战。因此，铁基OPTS有利于限制缓慢的降解速率。在目前的工作中，使用新型的制造技术制造OPTS，该技术包括基于微挤压的3D打印和无压微波烧结。两种不同类型的晶胞形状即。选择六角形和立方形来制造具有三种不同尺寸的支撑件的OPTS，例如$1.0，1.25$和 $1.5米米$。发现相对于设计的CAD模型，OPTS的尺寸变化较小。此外，将OPTS尺寸与其他常规金属印刷技术（例如，间接固体自由形式制造技术）进行了比较。制成的OPTS的压缩行为分别推断出杨氏模量，极限压缩强度和能量吸收能力分别为136–257 MPa，11–67.3 MPa和2–15 MPa。此外，发现制成的OPTS的压缩力学行为与Gibson-Ashby模型一致。进行了讨论以将本研究的结果与先前的工作进行比较，并且很明显，获得的人造OPTS的性能处于理想范围内，并且可以将其视为矫形外科应用的发展。