2016
DOI: 10.1002/adma.201505347
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Bulk Metallic Glasses for Implantable Medical Devices and Surgical Tools

Abstract: 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 significan… Show more

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Cited by 118 publications
(65 citation statements)
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(107 reference statements)
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“…In general, alloy metals such as aluminum, calcium, lithium, zirconium and rare earth elements have been used to adjust mechanical properties such as the same stiffness as bony tissue or to reduce the degradation rate. In addition, grain refinement, protective surface coatings, and metallic glasses obtained by ultrafast cooling techniques resulted in improved degradation characteristics, increased material strength and bone-compatible elastic moduli [64][65][66][67][68][69][70][71][72][73][74][75].…”
Section: Characteristics Of Magnesium-based Implantsmentioning
confidence: 99%
“…In general, alloy metals such as aluminum, calcium, lithium, zirconium and rare earth elements have been used to adjust mechanical properties such as the same stiffness as bony tissue or to reduce the degradation rate. In addition, grain refinement, protective surface coatings, and metallic glasses obtained by ultrafast cooling techniques resulted in improved degradation characteristics, increased material strength and bone-compatible elastic moduli [64][65][66][67][68][69][70][71][72][73][74][75].…”
Section: Characteristics Of Magnesium-based Implantsmentioning
confidence: 99%
“…Recently, metallic glasses (MGs) have received considerable attention for biomedical device applications owing to their structural and functional properties, many of them superior to those of conventional metallic alloys (e.g., SS 316L). MGs display high strength, hardness, resilience, corrosion resistance, and biocompatibility . MGs are obtained by rapid quenching from the melts of alloys, which prohibits formation of a crystalline solid as in conventional alloys, and leads to an amorphous (glassy) solid structure .…”
Section: Introductionmentioning
confidence: 99%
“…MGs display high strength, hardness, resilience, 36 corrosion resistance, and biocompatibility. [37][38][39][40] MGs are obtained by rapid quenching from the melts of alloys, which prohibits formation of a crystalline solid as in conventional alloys, and leads to an amorphous (glassy) solid structure. 41 MGs with amorphous structures have higher elastic limits, yield strengths, and resilience than their crystalline counterparts.…”
Section: Introductionmentioning
confidence: 99%
“…There are number of methods to improve the corrosion resistance of magnesium alloys. One of these is the use of protective coatings, however a change in the structure of the material, such as nanocrystallization and amorphization, can also be used . Amorphous materials, unlike their crystalline counterparts, are chemically homogeneous and have no microstructural defects, such as grain boundaries, dislocations, or separations.…”
Section: Introductionmentioning
confidence: 99%
“…One of these is the use of protective coatings, however a change in the structure of the material, such as nanocrystallization and amorphization, can also be used. [5,10,[26][27][28][29][30] Amorphous materials, unlike their crystalline counterparts, are chemically homogeneous and have no microstructural defects, such as grain boundaries, dislocations, or separations. These factors have a positive effect on improving the corrosion resistance of these materials.…”
Section: Introductionmentioning
confidence: 99%