Synthesis of In-Situ Titanium Carbide Particle Reinforced Titanium Composites

Kim, Myoung Gyun; Sung, Si Young; Kim, Young Jig

doi:10.4028/0-87849-960-1.963

Cited by 3 publications

(5 citation statements)

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“…Furthermore, a single TiB 2 peak (111) can be seen at 2θ = 68.326 • in the XRD pattern of the composite. This finding is consistent with the slow diffusion of boron atoms in TiB reported in a previous study [45,56]. The dominant TiB (200 and 113) peaks are observed in the composites in comparison to peaks only of α Ti, in the pure sample.…”

Section: X-ray Diffraction Analysissupporting

confidence: 92%

Powder Metallurgy Preparation and Characterization of Titanium-Titanium Diboride Composite Targeted for Dental Implant

Aljafery,

Fatalla,

Haider

2023

J. Compos. Sci.

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Due to the advantages over other metallic materials, such as superior corrosion resistance, excellent biocompatibility, and favorable mechanical properties, titanium, its alloys and related composites, are frequently utilized in biomedical applications, particularly in orthopedics and dentistry. This work focuses on developing novel titanium-titanium diboride (TiB2; ceramic material) composites for dental implants where TiB2 additions were estimated to be 9 wt.%. In a steel mold, Ti-TiB2 composites were fabricated using a powder metallurgy technique and sintered for five hours at 1200 °C. Microstructural and chemical properties were analyzed by energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and X-ray diffraction (XRD) to evaluate the impact of the TiB2 ceramic addition. Compressive strength, Brinell hardness, porosity, and density, among other mechanical and physical properties, were also measured and characterized. It has been found that adding TiB2 to Ti increases its porosity (35.53%), compressive strength (203.04 MPa), and surface hardness (296.3 kg/mm2) but decreases its density (3.79 gm/cm3). The lightweight and strong composite could be suitable for dental implant applications.

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Section: X-ray Diffraction Analysissupporting

confidence: 92%

Powder Metallurgy Preparation and Characterization of Titanium-Titanium Diboride Composite Targeted for Dental Implant

Aljafery,

Fatalla,

Haider

2023

J. Compos. Sci.

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“…The presence of TiB 2 (001) and (002) peaks at 2θ =27.64°and 57.36°, respectively, in the composites (17.6 and 37.9 vol.% TiB) are observed. This indicates the slow diffusion of boron atoms in TiB, which is similar to the result reported in an earlier reported study [12]. In the composites (both 17.6 and 37.9 vol.% TiB), the dominant TiB (112), (111) and (201) peaks at 2θ = 52.44°, 37.62°and 34.7°, respectively, are observed.…”

Section: X-ray Diffraction Techniquesupporting

confidence: 88%

“…The morphologies of the TiB whiskers formed in the composites (38.3 and 20.6 vol.% TiB) processed by HIP are considerably different from those in the composites synthesised using the other techniques (SPS and vacuum sintering) and hot pressing [12]. The composite with 38.3 vol.% TiB (Fig.…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 97%

“…The volume fraction of TiB phases measured by an image analyser with acceptable accuracy [12] is shown in Table 3. Through this method, the TiB phases were identified and their volume percentages were estimated using an image analyser attached to an optical microscope.…”

Section: Estimation Of Tib Volume Fraction Through Image Analyser Tecmentioning

confidence: 99%

“…Moreover, TiB reinforcement has certain desirable characteristics such as high elastic modulus, good thermal stability at high temperature and a density nearly equal to that of titanium [11]. Many research studies on the processing of Ti-TiB composites using many techniques such as solidification, rapid solidification [12][13][14], combustion synthesis [15] and laser cladding [16] have been reported. In all of these techniques, TiB reinforcement is developed either by an in situ method or by the addition of ceramic particles of TiB.…”

Section: Introductionmentioning

confidence: 98%

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Characterisation of titanium–titanium boride composites processed by powder metallurgy techniques

Selvakumar¹,

Chandrasekar

Chandramohan

et al. 2012

Materials Characterization

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Cytotoxicity, Corrosion Resistance, and Wettability of Titanium and Ti-TiB2 Composite Fabricated by Powder Metallurgy for Dental Implants

Aljafery,

Fatalla,

Haider

2024

Metals

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Objectives: Orthopedics and dentistry have widely utilized titanium alloys as biomaterials for dental implants, but limited research has been conducted on the fabrication of ceramic particle-reinforced Ti composites for further weight reductions. The current study compared titanium–titanium diboride metal composites (Ti-TiB2) with pure titanium (processed by powder metallurgy) in terms of toxicity, corrosion resistance, and wettability. Methods: First, cell lines of a primary dermal fibroblast normal human adult (HDFa) were used to test the cytocompatibility (in vitro) of the composite and pure Ti using an indirect contact approach. Corrosion testing was performed for the materials using electrochemical techniques such as potentiodynamic polarization in a simulated bodily fluid (SBF) in conjunction with a three-electrode electrochemical cell. The entire set of experimental tests was conducted according to the ASTM F746-04 protocol. The contact angles were measured during wettability testing in accordance with ASTM D7334-08. An X-ray diffractometer (XRD) was used to catalog every phase that was visible in the microstructure. A scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) were used to determine the chemical composition. Results: The cytotoxicity tests revealed that there was no detectable level of toxicity, and there was no significant difference in the impact of either of the two materials on the viability of human fibroblasts. An increase in the corrosion resistance of the composite (0.036 ± 0.0001 mpy (millimeters per year)) demonstrated the development of a passive oxide coating. According to the findings, the composites showed a greater degree of hydrophilicity (contact angle 44.29° ± 0.28) than did the pure titanium (56.31° ± 0.47). Conclusions/Significance: The Ti-TiB2 composite showed no toxicity and better corrosion resistance and wettability than did pure Ti. The composite could be a suitable alternative to Ti for applications involving dental implants.

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Synthesis of In-Situ Titanium Carbide Particle Reinforced Titanium Composites

Cited by 3 publications

References 0 publications

Powder Metallurgy Preparation and Characterization of Titanium-Titanium Diboride Composite Targeted for Dental Implant

Powder Metallurgy Preparation and Characterization of Titanium-Titanium Diboride Composite Targeted for Dental Implant

Characterisation of titanium–titanium boride composites processed by powder metallurgy techniques

Cytotoxicity, Corrosion Resistance, and Wettability of Titanium and Ti-TiB2 Composite Fabricated by Powder Metallurgy for Dental Implants

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