A review of high-strength nanolaminates and evaluation of their properties

Nasim, Mohammad; Li, Yuncang; Wen, Ming; Wen, Cuie

doi:10.1016/j.jmst.2020.03.011

Cited by 59 publications

(7 citation statements)

References 185 publications

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“…Besides, much lower compression strengths (Figure 10c,d) were evaluated for the SHAp pellets (26.4 MPa and 28.4 MPa), which also had an influence on lower shrinkage (2.12%; Figure 10e) and lower Young's elastic modulus (2116.75 MPa, Figure 10f), probably due to the microstructures with more vacancies, compared to the CHAp and EHAp samples. The fracture toughness (Figure 10g) was thus found to be the highest for the CHAp sample of comparatively lower mechanical strength, mainly due to the lower particle size (Figure 3) and, maybe, more spherical and smaller morphology of the HAp crystallite (Table 1, Figure 2), which do not permit its usage in load-bearing applications (44). On the other hand, the higher Young's elastic modulus (4011.1 MPa) and the lower fracture toughness (4.34 MPa m 1/2 ) of the EHAp sample make this material more brittle and less deformable.…”

Section: Comparing the Mechanical Properties Of Differently Nanostruc...mentioning

confidence: 99%

“…Furthermore, to obtain the balanced compression strength and fracture toughness, the preparation of such HAp-based materials is first optimized related to the applied compression load using the Vickers indentation method [38,[41][42][43]. The compression strength, fracture compression strength, yield compression strength, shrinkage, and Young's elastic modulus [44][45][46] of different nanostructured materials are then recorded and compared to better understand the contributions of nanoscale features using different types of HAp nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Properties of Differently Nanostructured and High-Pressure Compressed Hydroxyapatite-Based Materials for Bone Tissue Regeneration

et al. 2021

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Hydroxyapatite (HAp) has long been considered the gold standard in the biomedical field, considering its composition and close resemblance to human bone. However, the brittle nature of hydroxyapatite (HAp) biomaterial, constrained by its low fracture toughness (of up to 1.2 vs. 2–12 MPa m1/2 of human bone), remains one of the significant factors impairing its use in bone regeneration. In the present study, HAp nanoparticles synthesized by the solid-state (SHAp) and sonochemical (EHAp) approaches using eggshell-derived calcium hydroxide and ammonium dihydrogen orthophosphate as precursors are compared with those synthesized using commercially available calcium hydroxide and ammonium dihydrogen orthophosphate as precursors (CHAp) employing sonochemical method. The HAp samples were then compressed into compact materials using a uniaxial high-pressure compression technique at a preoptimized load and subsequently characterized for mechanical properties using the Vickers indentation method and compressive strength testing. The analysis revealed that the material with smaller particle size (30–40 nm) and crystalline nature (EHAp and CHAp) resulted in mechanically robust materials (σm= 54.53 MPa and 47.72 MPa) with high elastic modulus (E = 4011.1 MPa and 2750.25 MPa) and density/hardness-dependent fracture toughness (σf= 4.34 MPa m1/2and 6.57 MPa m1/2) than SHAp (σm =28.40 MPa, E = 2116.75 MPa, σf = 5.39 MPa m1/2). The CHAp material was found to be the most suitable for applications in bone regeneration.

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Section: Comparing the Mechanical Properties Of Differently Nanostruc...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Differently Nanostructured and High-Pressure Compressed Hydroxyapatite-Based Materials for Bone Tissue Regeneration

et al. 2021

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“…However, no significant anomalous elastic behavior has been observed [ 9 , 10 ], which raises whether the supermodulus effect exists in the Cu/Pd multilayers. The mechanical properties of NMM are strongly dependent on the interfacial structure between adjacent individual layers [ 11 ]. Howe et al investigated the interfacial structure of Pd films on Cu(111) and found that the Pd grows in a twinned FCC structure along 〈111〉 direction [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…Howe et al investigated the interfacial structure of Pd films on Cu(111) and found that the Pd grows in a twinned FCC structure along 〈111〉 direction [ 12 ]. The twinning structures at the interface usually have a profound effect on their strength [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Anisotropy and In-Plane Grain Boundary in Cu/Pd Multilayered Films with Cube-on-Cube and Twinned Interface

et al. 2021

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In crystalline materials, grain boundary and anisotropy of crystal structure affect their mechanical properties. The effects of interfacial structure on the mechanical properties may be diverse when the multilayer film is loaded along different directions. In this work, we performed a series of molecular dynamics simulations of the tension of in-plane single and polycrystalline Cu/Pd multilayered films with cube-on-cube (COC) and twinned interfaces to explore the effects of the interfacial structure, loading direction and in-plane grain boundaries on their mechanical properties. The interfacial misfit dislocation lines become bent after relaxation, and the high temperature of 300 K was found as a necessary condition. When stretched along 〈110〉 direction, the strengthening effect of the COC interface is more noticeable; however, when stretched along 〈112〉 direction, the twin interface's strengthening effect is more visible, showing the anisotropic effect of interfacial structure on mechanical properties. However, in the in-plane honeycomb polycrystalline sample, the twin interface showed a pronounced strengthening effect, and no jogged dislocations were observed.

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“…In recent years, much attention has been paid to the study of nanocrystalline (NC) metallic materials, as well as to the unique physical and mechanical properties that they exhibit [1][2][3][4][5][6][7]. It is known that these properties significantly depend on the mechanisms of plastic deformation of such materials.…”

Section: Introductionmentioning

confidence: 99%

Collective Migration of Low-Angle Tilt Boundaries Near Crack Tips in Nanocrystalline Metals under Fatigue Load

Konakov¹,

Sheĭnerman²

2021

Rev Adv Mater Tech

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A review of high-strength nanolaminates and evaluation of their properties

Cited by 59 publications

References 185 publications

Mechanical Properties of Differently Nanostructured and High-Pressure Compressed Hydroxyapatite-Based Materials for Bone Tissue Regeneration

Mechanical Properties of Differently Nanostructured and High-Pressure Compressed Hydroxyapatite-Based Materials for Bone Tissue Regeneration

Effects of Anisotropy and In-Plane Grain Boundary in Cu/Pd Multilayered Films with Cube-on-Cube and Twinned Interface

Collective Migration of Low-Angle Tilt Boundaries Near Crack Tips in Nanocrystalline Metals under Fatigue Load

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