Structure and Properties of Biomaterials

Sukaryo, Sulistioso Giat; Purnama, Agung; Hermawan, Hendra

doi:10.1007/978-3-319-14845-8_1

Cited by 8 publications

(9 citation statements)

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“…Fakat bu malzemelerin dezavantajı ise biyoaktivitelerinin olmamasıdır. Şekil 1: İmplantların tasarım aşamaları [2].…”

Section: Konvansiyonelunclassified

“…Biyomalzemelerin laboratuvardan klinik uygulamalara kadar gelişimi uzun ve titiz bir süreçtir (Şekil 1). Özel ihtiyaçların belirlenmesinden başlayarak malzemelerin sentezi, implantların dizaynı, üretimi ve klinik testleri FDA (United States Food and Drug Administration) ve CE (European Conformity) gibi düzenleyici kuruluşlar tarafından belirlenmiştir [2].…”

Section: Introductionunclassified

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Biomaterials Used in Orthopedic Implants

Güner¹,

Meran²

2020

Pamukkale J Eng Sci

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Ortopedide biyomalzemeler, travma sonucu kırılan kemiklerin iyileşmesi için sabitleme ya da osteoporoz gibi bir hastalık tarafından hasar gören eklem ya da kemiklerin yerini alması amacıyla kullanılır. Bu malzemelerin çoğunluğunu metaller oluşturmaktadır. Metal olmayan malzemeler ise seramikler, polimerler ve kompozitler olarak üçe ayrılabilir. Bu çalışmada ortopedik implantların üretiminde kullanılan biyomalzemelerin çeşitleri, temel özellikleri, avantaj ve dezavantajları, kullanım alanları ve malzeme seçimine bağlı olarak oluşabilecek sorunlar özetlenmiştir.Orthopedic biomaterials are used in replacement of joints or bones that are damaged by a disease such as osteoporosis or fixation of broken bones. Majority of these materials are metals. Non-metallic materials can be separated into three groups as ceramics, polymers and composites. In this study, the types, fundamental properties, advantages and disadvantages of biomaterials used in the production of orthopedic implants are summarized.

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“…Fakat bu malzemelerin dezavantajı ise biyoaktivitelerinin olmamasıdır. Şekil 1: İmplantların tasarım aşamaları [2].…”

Section: Konvansiyonelunclassified

Section: Introductionunclassified

Biomaterials Used in Orthopedic Implants

Güner¹,

Meran²

2020

Pamukkale J Eng Sci

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“…Paduan berbasis kobalt merupakan material yang digunakan untuk beroperasi pada suhu tinggi, mempunyai ketahanan korosi dan biokompatibilitas yang baik [1,2]. Untuk meningkatkan sifat mekanik dan kimiawi dari paduan, dilakukan penambahan beberapa elemen, agar strukturmikro paduan Co-Cr lebih stabil [3].…”

Section: Pendahuluanunclassified

“…Selain stainless steel dan paduan tinanium, paduan kobalt merupakan salah satu material yang dapat diterima oleh tubuh. Paduan Logam tersebut digunakan pada implan gigi, implan penyambung tulang bahu dan pinggul, serta tulang lutut [2,3].…”

Section: Pendahuluanunclassified

SINTESIS PADUAN Co-Cr MENGGUNAKAN METODE ULTRASONIK

Silalahi

Rahayu²,

Sugeng

et al. 2018

JUSAMI

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Paduan Co-Cr merupakan material tahan suhu tinggi dan tahan korosi. Penelitian ini bertujuan mensistesis serbuk paduan Co-Cr dengan metode ultrasonik, kemudian dilanjutkan dengan proses sintering dalam kapsul kaca kuarsa. Iradiasi ultrasonik yang digunakan pada frekuensi 20 kHz dan amplitudo 40 % dengan komposisi Co : Cr sebesar 80 : 20.Waktu perlakuan sonikasi adalah selama 0 jam, 3 jam, 6 jam, 12 jam, 24 jam, dan 48 jamdalam larutan etanol. Setelah sonikasi selama 48 jam, fasa FCC dari Co mulai bertransformasi menjadi fasa HCP. Perlakuan ultrasonik terhadap campuran Co-Cr juga memberikan efek pengurangan ukuran partikel. Parameter kisi serbuk setelah ultrasonikasi 48 jam adalah: untuk HCP-Co a = b = 0,25074 nmdan c = 0,40699 nm, untuk FCC-Co a = b = c = 0,35411nm, dan untuk BCC-Cr a=b=c=0.28827 nm. Perlakuan ultrasonik selama 48 jam menhasilkan pembentukan paduan Co-Cr dengan persentasi berat sebesar 25,2124. Hasil sintering padatan Co-Cr menunjukkan parameter kisi HCP-Co memiliki nilai yaitu a = b = 0,25230 nm dan c=0,41223 nm, dan FCC-Co a = b = c = 0,35232 nm. Terbentuknya microalloying CoCr diindikasikan dari hasil EDS, teramati partikel yang mempunyai komposisi Co : Cr = 71,25 : 24,45. Paduan Co-Cr yang terbentuk setelah sintering pada 1300 oC adalah sebesar 15,33416 %berat.

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“…It was reported that under as-cast condition, Ni and N free CoCrMo alloys exhibit a low ductility due to the formation of σ phase within the interdendritic region, which results in brittle fracture [ 61 ]. Hence, it is vital to suppress the formation of σ phase and, at the same time, stabilize the γ phase through the addition of the fourth element.…”

Section: Tribocorrosive Behavior Of Cocrmo Alloysmentioning

confidence: 99%

Tribochemical Characterization and Tribocorrosive Behavior of CoCrMo Alloys: A Review

et al. 2017

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Orthopedic implants first started out as an all-metal hip joint replacement. However, poor design and machinability as well as unsatisfactory surface finish subjected the all-metal joint replacement to being superseded by a polyethylene bearing. Continued improvement in manufacturing techniques together with the reality that polyethylene wear debris can cause hazardous reactions in the human body has brought about the revival of metal-on-metal (MOM) hip joints in recent years. This has also led to a relatively new research area that links tribology and corrosion together. This article aims at reviewing the commonly used tribochemical methods adopted in the analysis of tribocorrosion and putting forward some of the models and environmental factors affecting the tribocorrosive behavior of CoCrMo alloys, a widely-used class of biomaterial for orthopedic implants.

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Structure and Properties of Biomaterials

Cited by 8 publications

References 0 publications

Biomaterials Used in Orthopedic Implants

Biomaterials Used in Orthopedic Implants

SINTESIS PADUAN Co-Cr MENGGUNAKAN METODE ULTRASONIK

Tribochemical Characterization and Tribocorrosive Behavior of CoCrMo Alloys: A Review

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