By Mitsuo Niinomi, Takayuki Narushima, Masaaki Nakai
This ebook covers the newest advances in processing concepts for generating steel biomaterial implants. It additionally discusses contemporary advancements in floor changes utilizing bioactive ceramics and blood-compatible polymers, in addition to the adhesive energy of bioactive floor layers, earlier than introducing the sensible functions of steel biomaterials within the fields of surgical procedure and dentistry. As such, the e-book presents a necessary reference consultant for researchers, graduate scholars and clinicians operating within the fields of fabrics, surgical procedure, dentistry, and mechanics.
Mitsuo Niinomi, PhD, D.D.Sc., is a Professor on the Institute for fabrics learn, Tohoku collage, Japan
Takayuki Narushima, PhD, is a Professor on the division of fabrics Processing, Tohoku collage, Japan
Masaaki Nakai, PhD, is an affiliate Professor on the Institute for fabrics learn, Tohoku college, Japan
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Additional resources for Advances in Metallic Biomaterials: Processing and Applications
00 1100 1150 1200 1250 1300 1350 1400 Sintering temperature (ЊC) 950 Tensile strength (MPa) Fig. 16 Comparison of tensile strength for sintered compacts using alloy and mixed powders 900 850 800 750 700 Alloy Ti+Al-Nb Ti+Ti-Al+Nb Ti+Nb+F-Al Ti+Nb+C-Al 650 600 550 500 1100 1150 1200 1250 1300 1350 Sintering temperature (ЊC) 1400 2 Metal Injection Molding (MIM) Processing 18 15 Elongation (%) Fig. 17 Comparison of elongation for sintered compacts using alloy and mixed powders 43 12 9 Alloy Ti+Al-Nb Ti+Ti-Al+Nb Ti+Nb+F-Al Ti+Nb+C-Al 6 3 0 1100 1150 1200 1250 1300 1350 1400 Sintering temperature (ЊC) compacts using alloy powder shows the highest value; however, a mixture of Ti, Nb, and coarse Al powders is lower than that of the compacts using other mixtures, even though it increases with increasing sintering temperature.
3 mass%. 09 mass%. 27 shows the stress amplitude-number to failure curves of specimens obtained by rotating bending fatigue testing. Fatigue limit increased with increasing sintering temperature. The specimens treated by HT and HIP showed much higher fatigue limit. 03B The sintered density obtained was around 97 %TD. The resulting α- and β-lamellar structure is shown in Fig. 28. 37 mass%, which is higher than the oxygen content of other specimens because of the higher oxygen content of the original TiB2 powder (1 mass%) introduced.
For sintered specimens, density measurement, microstructure observation, oxygen and carbon content analysis, and rotating bending fatigue testing were performed. 20 shows the relative density of as-sintered unalloyed Ti specimens. The sintered density increased with increasing sintering temperature and time. Microstructures of the specimens are shown in Fig. 21. The number of pores decreased with increasing sintering time, while the pore size seemed to become bigger. As-sintered Ti shows an equiaxed structure, and grain growth was observed with increasing sintering temperature and time.
Advances in Metallic Biomaterials: Processing and Applications by Mitsuo Niinomi, Takayuki Narushima, Masaaki Nakai