مشخصه‌یابی پوشش‌های شیشه-سرامیک آپاتیت بر سطح زیرلایه فلزی آلیاژ Ti-6Al-4V به روش سل-ژل جهت کاربردهای پزشکی

نوع مقاله : علمی و پژوهشی

نویسندگان

1 دانشگاه فردوسی مشهد

2 موسسه تحقیقاتی پر طاووس

چکیده

پوشش­های شیشه-سرامیک آپاتیت-آنورتیت توسط غوطه­وری زیرلایه Ti-6Al-4V در سل هایی با مقادیر مناسب به صورت تک لایه و دو لایه، تهیه گردیدند. سپس تا دمای 800 درجه سانتیگراد تحت عملیات حرارتی قرار گرفتند. از آنالیز پراش اشعه ایکس و آنالیز حرارتی تفاضلی، به ترتیب جهت تعیین ترکیبات تشکیل شده و بررسی تحولات صورت گرفته استفاده گردید. سختی و زبری پوشش­ها، نیز به ترتیب توسط دستگاه میکرو­سختی و آنالیز میکروسکوپ نیروی اتمی، انجام گرفت. میکروسکوپ الکترونی روبشی نیز یکنواختی و چسبندگی پوشش­های تک لایه را نشان می دهند. نتایج نشان دادند که پوشش­های دو لایه دارای سختی بیش­تری نسبت به پوشش­های تک لایه می باشند. زبری تمامی پوشش­ها در محدوده مناسب جهت کاربردهای دندانی می باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Characterization of Apatite Glass-Ceramic Coatings on Ti-6Al-4V Substrate by Sol-Gel Method for Medical Application

نویسندگان [English]

  • sara shoorvazi 1
  • Alireza Kiani-Rashid 1
  • Sahar Mollazadeh Beidokhti 1
  • abbas yousefi 2
1 Ferdowsi university of mashhad
2 par-e-tavous
چکیده [English]

A single- and double-layer apatite-anorthite glass-ceramic coating was produced by dip coating sol-gel method on Ti-6Al-4V substrate. Heat treatment was performed at 800­°C. DTA analysis was performed to determine the appropriate heat treatment temperatures. XRD analysis confirmed the intended crystalline compounds; and the morphology of the coated layer was investigated using a SEM. Hardness and roughness of each layer was measured by micro hardness test and AFM, respectively. SEM micrographs confirm the adhesion and uniformity of the first apatite layer. Micro hardness of the second (top) layer showed an increase compared to the first layer. The roughness of the coatings is in the appropriate limit for dental applications.

کلیدواژه‌ها [English]

  • apatite-anorthite double layer coatings
  • Sol-gel
  • Microhardness
  • roughness
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