Currently, there is an increasing discussion on the topic of the aging population and the associated problems. As the issue becomes more pressing, there is a rising need for surgical implants that meet specific requirements. Metal-based implants are being phased out due to their tendency to cause abnormal tissue growth. A more effective solution is to combine metal with ceramics, particularly hydroxyapatite, which has a structure similar to natural bone and can facilitate tissue regeneration. Surgical implants are designed to serve as bone replacements for as long as possible. The ideal implant should be characterized by its ability to integrate with the bone through osteointegration, mitigate inflammation, and promote bone regeneration.

In order to improve the durability and biocompatibility of a bone implant, a composite material based on the titanium alloy Ti6Al4V and hydroxyapatite can be designed. The process of obtaining the Ti-HAp composite involves several important elements, including the synthesis of hydroxyapatite particles with a specific morphology, 3D binder ket printing, and the sintering of materials.

Binder jetting is a 3D printing technology used for producing biomaterials. It allows for the production of components designed in a computer-aided design program, such as CAD. The binder jet method has several advantages, including the ability to produce multiple components in a single process and achieve high porosity for bone implants.

The binder jet 3D printing method can produce a composite biomaterial based on Ti6Al4V and HAp, which may serve as an alternative to conventional methods for obtaining bone implants. However, further research is necessary in order to improve production parameters and determine the final properties of Ti-HAp biocomposites.

This research was funded in whole by the National Science Centre, Poland, under the OPUS call in the Weave programme under registration number 2022/47/I/ST8/01778