مشخصه‌یابی آلومینای متخلخل آندی به روش آنالیز با باریکه‌ی یونی

مخلص گرامی, فریبا; کاکویی, امیدرضا; محمدی, سعید

نوع مقاله : مقاله پژوهشی

نویسندگان

¹ گروه فیزیک، دانشگاه پیام نور،

² پژوهشکده‌ی فیزیک و شتابگرها، پژوهشگاه علوم و فنون هسته‌ای

³ گروه فیزیک، دانشگاه پیام نور

چکیده

اکسیدآلومینیم متخلخل به دلیل خواص یگانه‌ی خود، کاربرد گستردهای در فن‌آوری دارد. کیفیت لایه‌ی متخلخل، ضخامت این لایه، چگالی و اندازه‌ی خُلل‌ها، نقش تعیین‌کنندهای در عملکرد این ماده‌ی پیشرفته دارند. اندازه‌گیری مستقیم و غیرمخرب ویژگی‌های لایه‌ی‌ متخلخل به منظور کنترل فرایند ساخت و بهبود عملکرد آن، از چالش‌های پیش‌روی پژوهش‌گران است. در این پژوهش، سعی شده است تا با استفاده از توانمندی آنالیز به وسیله‌ی باریکه‌ی یونی، برخی از مشخصات اکسید آلومینیم متخلخل تعیین شود. به این منظور از روش‌های پس‌پراکندگی کشسانی (EBS)، آشکارسازی ذرات پس زده از برخورد کشسان (ERD) و برهم‌کنش هسته‌ای (NRA) برای مشخصه‌یابی آلومینای متخلخل و مقایسه‌ی آن با نمونه‌ی آلومینای غیرمتخلخل استفاده شده است. با استفاده از روش EBS ترکیبهای عنصری، ناخالصی‌ها و نمایهی عمقی عناصر؛ با استفاده از روش NRA غلظت عناصر اکسیژن و کربن در نمونه؛ و با روش ERD نمایه‌ی عمقی هیدروژن موجود در نمونه‌ها، اندازه‌گیری شده است. علاوه ‌بر این، با استفاده از روش آنالیز پس‌پراکندگی باریکه‌ی یونی تشدیدی ¹⁶O(α ,α)¹⁶O، تحلیل ساختاری تخلخل بررسی شده است.

کلیدواژه‌ها

عنوان مقاله [English]

Characterization of Anodic Porous Alumina by Ion Beam Analysis Method

نویسندگان [English]

F Mokhles Gerami ¹
A. R Kakuee ²
S Mohammadi ³

چکیده [English]

Porous aluminum oxide due to its unique properties has a wide range of applications in technology. The quality of porous layer, its thickness as well as the size and density of pores, have crucial rule in the performance of this advanced material. Direct and nondestructive measurement of specifications of the porous layer is among the challenges facing the researchers in controlling its fabrication process and improvement of its performance. In this research work, we have tried to employ the capabilities of ion beam analysis techniques to determine certain characteristics of the porous aluminum oxide layer. For this purpose, the techniques of elastic backscattering spectroscopy (EBS), elastic recoil detection (ERD) analysis, and nuclear reaction analysis (NRA) have been employed for characterization of porous alumina and its comparison with nonporous alumina. Using the EBS technique, elemental composition, impurities and depth profiles of elements in the sample are measured. By the NRA technique, oxygen and carbon concentrations in the sample are determined; and by using the ERD technique, the depth profile of the existing hydrogen in the sample is measured. Moreover, by employing the resonant ion beam scattering analysis of ¹⁶O(α ,α)¹⁶O, structural analysis of the porosity is investigated.

کلیدواژه‌ها [English]

Porous Aluminum Oxide
Ion Beam Analysis
Porosity
Resonance Reaction
Depth Profile

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