Enhancement of the mechanical properties of AZ31 magnesium alloy via nanostructured hydroxyapatite thin films fabricated via radio-frequency magnetron sputtering

Journal of the Mechanical Behavior of Biomedical Materials
M A SurmenevaR A Surmenev

Abstract

The structure, composition and morphology of a radio-frequency (RF) magnetron sputter-deposited dense nano-hydroxyapatite (HA) coating that was deposited on the surface of an AZ31 magnesium alloy were characterized using AFM, SEM, EDX and XRD. The results obtained from SEM and XRD experiments revealed that the bias applied during the deposition of the HA coating resulted in a decrease in the grain and crystallite size of the film having a crucial role in enhancing the mechanical properties of the fabricated biocomposites. A maximum hardness of 9.04 GPa was found for the HA coating, which was prepared using a bias of -50 V. The hardness of the HA film deposited on the grounded substrate (GS) was found to be 4.9 GPa. The elastic strain to failure (H/E) and the plastic deformation resistance (H(3)/E(2)) for an indentation depth of 50 nm for the HA coating fabricated at a bias of -50 V was found to increase by ~30% and ~74%, respectively, compared with the coating deposited at the GS holder. The nanoindentation tests demonstrated that all of the HA coatings increased the surface hardness on both the microscale and the nanoscale. Therefore, the results revealed that the films deposited on the surface of the AZ31 magnesium alloy at a...Continue Reading

References

Oct 26, 2005·Biomaterials·Mark P StaigerGeorge Dias
Feb 6, 2007·Biomaterials·Frank WitteNorbert Hort
Apr 9, 2008·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Paulo G CoelhoJack E Lemons
Sep 25, 2008·Journal of Biomedical Materials Research. Part a·Joy E Gray-MunroMichael Strong
May 12, 2009·Acta Biomaterialia·Carla LorenzSannakaisa Virtanen
Jan 15, 2010·Journal of Biomedical Materials Research. Part a·Martina ThomannAndrea Meyer-Lindenberg
Jan 26, 2011·Journal of the Mechanical Behavior of Biomedical Materials·A Zamiri, S De
Jun 4, 2011·Biomedical Materials·M Bobby Kannan, Lynnley Orr
Apr 19, 2012·Acta Biomaterialia·H HornbergerA R Boccaccini
Mar 13, 2014·Acta Biomaterialia·Sergey V Dorozhkin

❮ Previous
Next ❯

Citations

Apr 16, 2018·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Sourav DuttaMangal Roy
Aug 4, 2019·International Journal of Molecular Sciences·Mi Hyun SongIn Ho Choi
Dec 12, 2018·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Usman RiazWaseem Haider
Sep 8, 2015·Science and Technology of Advanced Materials·M S UddinPeter Murphy

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.