标题: Dingli Applies for Patent on 3D Printed Porous Tantalum Carbide with 50–300 Micron Pores [打印本页] 作者: admin 时间: 2026-10-14 20:08 标题: Dingli Applies for Patent on 3D Printed Porous Tantalum Carbide with 50–300 Micron Pores On October 14, 2026, Nanjixiong learned that information published by China's National Intellectual Property Administration on October 13 identified Hunan Dingli Technology's application for a method of producing porous tantalum carbide components with controlled pore size through printing, publication CN122897687A.
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Starting with tantalum powder, the method creates a digital model with multifactor dimensional pre-compensation, prints a tantalum preform with interconnected three-dimensional pores, then carbonizes it in a carbon-containing environment to convert the entire metal skeleton into tantalum carbide. A quantitative relationship between pre-compensated and designed pore diameters enables final pores of 50–300 μm after carbonization. Discs, rings, conical rings, tubes and other shapes can be produced as integrated components.
Tantalum carbide has a melting point of 3880°C and is an ultrahigh-temperature ceramic used in aerospace thermal components. Dingli has also applied for related patents on tantalum carbide coatings on porous graphite and regeneration of carbide components.
Nanjixiong's observation
Refractory metal and ultrahigh-temperature ceramic printing is an important aerospace direction. Dingli's concentration of patents indicates accumulated capabilities in this field.
AI-translated from an article by Kuaixiong on Nanjixiong, originally published on 2026-10-14. Text and images retain the original source attribution. Read the original Chinese article
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