Effect of Sintering Temperature on Mechanical Property of Ti + ZrO&lt;sub&gt;2 &lt;/sub&gt;Prepared by Spark Plasma Sintering for Biomedical Applications

Tansiranon, Tanapon; Kondoh, Katsuyoshi; Ishikawa, Kazuhiro; Miyajima, Yoji; Khantachawana, Anak

doi:10.4028/www.scientific.net/msf.1033.93

Cited by 1 publication

(1 citation statement)

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“…However, the chronic issues of stress shielding (mismatch of stiffness between the human bone and the fabricated implant), osteolysis (loss of bone tissue) and toxic contamination have seriously affected the functional life of these implants for long-term application. These said issues can be alleviated by using the novel beta Ti alloys (Ti-24Nb-4Zr-8Sn and Ti-33Nb-4Sn), which possess near bone Young's modulus ($40-70 GPa) along with greater tensile strength ($850-950 MPa) (Cheng et al, 2019;Tansiranon et al, 2021). The rationale of choosing these supreme medical Ti alloys is pictorially represented in a tree diagram in Figure 2 after describing different implantation issues.…”

Section: Different Implant Materials Specifically Titanium Alloysmentioning

confidence: 99%

A review on the performance characteristics, applications, challenges and possible solutions in electron beam melted Ti-based orthopaedic and orthodontic implants

Ishfaq

Rehman

Khan

et al. 2021

RPJ

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Purpose Human aging is becoming a common issue these days as it results in orthopaedic-related issues such as joints disorderness, bone-fracture. People with age = 60 years suffer more from these aforesaid issues. It is expected that these issues in human beings will ultimately reach 2.1 billion by 2050 worldwide. Furthermore, the increase in traffic accidents in young people throughout the world has significantly emerged the need for artificial implants. Their implantation can act as a substitute for fractured bones or disordered joints. Therefore, this study aims to focus on electron beam melted titanium (Ti)-based orthopaedic implants along with their recent trends in the field. Design/methodology/approach The main contents of this work include the basic theme and background of the metal-based additive manufacturing, different implant materials specifically Ti alloys and their classification based on crystallographic transus temperature (including α, metastable β, β and α + β phases), details of electron beam melting (EBM) concerning its process physics, various control variables and performance characteristics of EBMed Ti alloys in orthopaedic and orthodontic implants, applications of EBMed Ti alloys in various load-bearing implants, different challenges associated with the EBMed Ti-based implants along with their possible solutions. Recent trends and shortfalls have also been described at the end. Findings EBM is getting significant attention in medical implants because of its minor issues as compared to conventional fabrication practices such as Ti casting and possesses a significant research potential to fabricate various medical implants. The elastic modulus and strength of EBMed ß Ti-alloys such as 24Nb-4Zr-8Sn and Ti-33Nb-4Sn are superior compared to conventional Ti for orthopaedic implants. Beta Ti alloys processed by EBM have near bone elastic modulus (approximately 35–50 GPa) along with improved tribo-mechanical performance involving mechanical strength, wear and corrosion resistance, along with biocompatibility for implants. Originality/value Advances in EBM have opened the gateway Ti alloys in the biomedical field explicitly ß-alloys because of their unique biocompatibility, bioactivity along with improved tribo-mechanical performance. Less significant work is available on the EBM of Ti alloys in orthopaedic and orthodontic implants. This study is directed solely on the EBM of medical Ti alloys in medical sectors to explore their different aspects for future research opportunities.

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Section: Different Implant Materials Specifically Titanium Alloysmentioning

confidence: 99%