Abstract

To improve the mechanical and biological properties and also to increase the lifetime and performance of Ti–6Al–4V dental implants they were coated by hydroxyapatite nanoparticles using a modified mechanical coating technique. A novel milling vial was developed to simultaneously coat hydroxyapatite nanoparticles on the Ti–6Al–4V substrates. The modified dimensions of the milling vial and optimized milling operation parameters were presented. The coating operation was applied for 4 hours with a ball to powder weight ratio of 30 : 1. Furthermore the bioactivity of the coatings was studied by placing the coating in a simulated body fluid for 14 days. SEM and FTIR analysis indicated the bone bonding ability of the coating by its capability of forming hydroxyapatite on the surface of the coating. The coating operation resulted in the formation of a uniform nanoparticle containing coating and significantly decreased the cost and complexity of the nanohydroxyapatite coating process on Ti–6Al–4V substrates.

中文翻译：

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改进的机械涂层技术制备纳米羟基磷灰石涂层的Ti-6Al-4V种植牙

摘要

为了改善机械和生物学特性，并增加Ti-6Al-4V牙科植入物的寿命和性能，使用改良的机械涂层技术对它们进行了羟基磷灰石纳米颗粒的涂层。开发了一种新型的研磨瓶，可以同时在Ti-6Al-4V基底上涂覆羟基磷灰石纳米粒子。介绍了研磨瓶的修改尺寸和优化的研磨操作参数。涂覆操作以球与粉末的重量比为30：1施加4小时。此外，通过将涂层放置在模拟体液中14天来研究涂层的生物活性。SEM和FTIR分析通过其在涂层表面上形成羟基磷灰石的能力表明了涂层的骨结合能力。