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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Synthesis, characterization, and coating of forsterite (Mg_2SiO_4) based material over medical implants: A review
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Synthesis, characterization, and coating of forsterite (Mg_2SiO_4) based material over medical implants: A review

机译：基于植入物（Mg_2sio_4）材料的合成，表征和涂层：综述

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摘要

Biocompatible metallic alloys (stainless steel, Ti-alloy, Co-Cr alloys, etc.) have been frequently used for various biomedical implants. Being biocompatible, complications like implant corrosion, body inflammation, organ pain, local infection, and cytotoxicity cannot be avoided. Hydroxyapatite, a common biomaterial, is used in the form of powders, coatings, and composites for biomedical applications. But poor adhesion, poor load-bearing capacity, high dissolution, poor wear resistance, natural fragility, etc. are the few hindrances in the use of hydroxyapatite coating over implants. Hence, there is a need to focus on the development of alternative biomaterials and their coatings for metallic (orthopedic, dental, metallic stents, pacemakers, etc.) implants. To avoid various complexities and to improve the biocompatibility of metal implants, the coating of forsterite and its composites are being used nowadays. Techniques like dip coating, plasma spraying, and electrophoretic deposition are employed for such coatings. In this paper, a review based on methods of preparation of forsterite has been done. For the preparation of forsterite powder, various studies have reported the sintering temperature range to be 800-1450? and the crystallite size from 10nm to 100 mu m. The forsterite and its composites coating over Ti-alloy and stainless steel have also been reported. This paper also compares the mechanical and biological properties of forsterite and hydroxyapatite. It has been observed that the mechanical properties (hardness, fracture toughness, Young's modulus, and compressive strength), and biological properties (biocompatibility and bioactivity) of forsterite are favorable for the biomedical implant coating.
机译：生物相容性金属合金（不锈钢，Ti合金，CO-CR合金等）经常用于各种生物医学植入物。不能避免生物相容性，植入物腐蚀，身体炎症，器官疼痛，局部感染和细胞毒性等并发症。羟基磷灰石，一种共同的生物材料，以粉末，涂料和复合材料的形式用于生物医学应用。但粘附性差，承载能力差，差的差，耐磨性不良，自然脆性等少数障碍在植入物中使用羟基磷灰石涂层。因此，需要专注于替代生物材料的开发及其用于金属（矫形，牙科，金属支架，起搏器等）植入物的涂层。为了避免各种复杂性并改善金属植入物的生物相容性，现在使用涂层涂层及其复合材料。这种涂层采用浸涂，等离子体喷涂和电泳沉积等技术。在本文中，已经完成了基于Forsterite的准备方法的综述。为了制备Forsterite粉末，各种研究报告烧结温度范围为800-1450？和微晶尺寸从10nm到100 mu m。还报道了通过Ti-合金和不锈钢涂覆的叉杆菌及其复合材料。本文还比较了Forsterite和羟基磷灰石的机械和生物学性质。已经观察到，Forsterite的机械性能（硬度，断裂韧性，杨氏模量和抗压强度）以及生物医学植入物涂层的生物学性质（生物相容性和生物活性）是有利的。

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