A new Ti-based bulk glassy alloy with potential for biomedical application

Zhu, Shengli; Wang, X.M.; Qin, Fengxiang; Inoue, Akihisa

doi:10.1016/j.msea.2007.01.044

Cited by 177 publications

(78 citation statements)

References 16 publications

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“…Broadened XRD patterns denote a glassy nature. For Ti 40 Zr 10 Cu 36 Pd 14 , a glassy state was confirmed as well as the literature [Zhu et al, 2007]. Surface morphology and cross section view of the GIL by the SEM observation were displayed in Fig.9 (a) and (b), respectively.…”

Section: Ha Bonding Behaviorsupporting

confidence: 80%

“…Faster healing rates will result from reduced stress shielding effects while minimizing stress concentrators. Ingots of Ti-based bulk metallic glass (Ti 40 Zr 10 Cu 36 Pd 14 : BMG) were prepared by arc-melting the pure elements with purities above 99.9% in an argon atmosphere [Zhu et al, 2007]. Cylindrical rods (5mm diameter) were prepared by copper mold casting method.…”

Section: Ha Bonding Behaviormentioning

confidence: 99%

“…The interface between the BMG and HA ceramics might have sufficient mechanical strength. Since glass transition and crystallization onset temperatures of about Ti 40 Zr 10 Cu 36 Pd 14 have been reported at 396 and 445°C, respectively [Zhu et al, 2007], the uniquely mechanical properties of the bulk metallic glasses must be lost in case of adding over 400°C heat treatment. Lower temperature techniques (under 400°C) are required for surface bioactivity treatments for retaining the uniquely mechanical properties of the bulk metallic glasses.…”

Section: Ha Bonding Behaviormentioning

confidence: 99%

See 2 more Smart Citations

Porous Apatite Coating on Various Titanium Metallic Materials via Low Temperature Processing

Onoki¹

2011

Biomaterials Science and Engineering

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Section: Ha Bonding Behaviorsupporting

confidence: 80%

Section: Ha Bonding Behaviormentioning

confidence: 99%

Section: Ha Bonding Behaviormentioning

confidence: 99%

See 1 more Smart Citation

Porous Apatite Coating on Various Titanium Metallic Materials via Low Temperature Processing

Onoki¹

2011

Biomaterials Science and Engineering

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“…Attempts by Zhu et al showed good GFA with d crit up to 7 mm, and no Ni, Be, or Al, but did include signifi cant amounts of Pd. [ 17 ] The corrosion behavior of the alloys in both lactic acid and PBS was excellent, offering signifi cant resistance to pitting over both pure Ti and crystalline Ti-6Al-4V. The strength was reported to be 1970 MPa, with signifi cant ductility in ribbon samples, although bulk ductility is not mentioned.…”

Section: Ti Systemsmentioning

confidence: 94%

Bulk Metallic Glasses for Implantable Medical Devices and Surgical Tools

et al. 2016

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Their inherent lack of dislocations and hence slip planes leads to exceptionally high strength and elasticity, approaching the theoretical limit. While oxide glasses and ceramics exhibit low toughness and brittle failure, BMGs can display toughness comparable to crystalline metals. [ 2 ] The lack of grain structure means that BMGs are homogeneous and exhibit isotropic behavior, even at sub-micrometer length scales, and, without grain boundaries or precipitates as oxidation sites, corrosion rates are significantly reduced compared to conventional metals.BMGs soften above an alloy-specifi c glass-transition temperature ( T g ) before eventual, time-dependent, crystallization at a higher, crystallization temperature ( T x ). In this supercooled liquid region (SCLR) between T g and T x , the viscous BMGs may be plastically shaped under low applied forces using polymer-processing techniques, such as hot embossing, extrusion, foaming, and injection and blow moulding, before again cooling to a solid metallic glass. With relatively low processing temperatures and no solidifi cation shrinkage, parts can be formed to netshape with excellent accuracy, and geometries, and surface patterns previously diffi cult in metals can be achieved with ease. [3][4][5][6][7] Such remarkable properties and behavior have led to significant interest in BMGs as engineering materials over the past 20 years, but it is only recently that their potential for use as a biomaterial has been studied. [ 8 ] To date, our understanding of material biocompatiblity has evolved mainly through empirical testing, observing the interaction of materials with cells and host tissue in vitro and in vivo. Materials can induce host responses varying from local and systemic infl ammation, hypersensistivity, toxicity, and even tumorogenesis, meaning that thorough evidence of material safety is required before regulatory approval and clinical translation. We now largely recognise the material characteristics that generate both favorable and undesired host responses, as outlined by Williams, [ 9 ] offering the opportunity for informed material design, while being cognisant that biocompatibility is specifi c to the application and host environment. [ 10 ] The original requirement of fi rst generation "biocompatible" materials was bio-inertness. [ 11 ] This included a resistance to corrosion in the body, and here Ti-and Co-based alloys scored highly. [ 12 ] Less-inert metals, such as Mg, were therefore not deemed suitable, although the ions released on dissolution are generally not harmful to the human body. However, current design requirements for biomaterials, including most recently biometals, include eliciting an appropriate host response, [ 13 ] and this can include the need to biodegrade and resorb. There are potential advantages for BMGs that span applications of With increasing knowledge of the materials science of bulk metallic glasses (BMGs) and improvements in their properties and processing, they have started to become candidate materials for biomedical dev...

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“…The traditional and potential applications include military, sports, aerospace, medical and automotive [8,9]. Biomedical applications are promising to continue the development of Ti technology, including PM processing [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Study of compaction and ejection of hydrided-dehydrided titanium powder

et al. 2011

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Three similar varieties of pure Ti hydride-dehydried (HDH) powders were tested for the understanding of the variables that have an influence on the compaction process of Ti powders. The study shows that small differences in the characteristics of the powders lead to very different behaviours in the compaction stage. Compressibility curves, friction with the die walls and ejection forces are discussed in this study. The results are compared with a commercial iron powder as a reference to complete the discussion, as well as to show the enhancements and modifications that should be performed in Ti powders to design an optimized powder suitable for being pressed in an industrial process.

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A new Ti-based bulk glassy alloy with potential for biomedical application

Cited by 177 publications

References 16 publications

Porous Apatite Coating on Various Titanium Metallic Materials via Low Temperature Processing

Porous Apatite Coating on Various Titanium Metallic Materials via Low Temperature Processing

Bulk Metallic Glasses for Implantable Medical Devices and Surgical Tools

Study of compaction and ejection of hydrided-dehydrided titanium powder

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