بررسی تاثیر مقدار اکسید سرب اضافه بر خواص دی‌الکتریکی و پیزوالکتریکی پیزوسرامیک PIN-PMN-PT آلائیده شده با منگنز

ملکوتی خواه, فائزه; یزدان مهر, محسن; احمدوند, حسین; پاپی, هادی; کازرانی وحدانی, محمدرضا

بررسی تاثیر مقدار اکسید سرب اضافه بر خواص دی‌الکتریکی و پیزوالکتریکی پیزوسرامیک PIN-PMN-PT آلائیده شده با منگنز

نوع مقاله : مقاله پژوهشی

نویسندگان

فائزه ملکوتی خواه ¹

محسن یزدان مهر ¹

حسین احمدوند ²

هادی پاپی ¹

محمدرضا کازرانی وحدانی ³

¹ مجتمع دانشگاهی علوم کاربردی نوین، دانشگاه صنعتی مالک اشتر، ایران

² دانشکده فیزیک، دانشگاه صنعتی اصفهان، ایران.

³ مجتمع دانشگاهی هوادریا، دانشگاه صنعتی مالک اشتر، ایران.

چکیده

در این مقاله خواص دی‌الکتریکی و پیزوالکتریکی نمونه‌های پیزوسرامیک Mn:25PIN-40PMN-35PTبا افزودن PbO اضافه در مراحل مختلف فرآیند سنتز بررسی شده است. برای این‌منظور، 4 نمونه که مرحله افزودن PbO اضافه به آن‌ها متفاوت بود، به روش پیش‌ساز کلمبایت دومرحله‌ای سنتز شد. از نمونه های ساخته شده مشخصه یابی ساختاری و پیزوالکتریکی انجم شد. نتایج به دست آمده نشان داد، نمونه‌ای که PbO اضافه بعد از کلسینه‌سازی پودر به آن افزوده و پودر آن مجدد کلسینه شد، دارای خواص بهینه ( Ec= 20.95 kV/cm، TC= 218 ℃، ε⁄ε0 =1650 و d33= 177 pC/N) نسبت به نمونه‌های دیگر بود. پس از تعیین مرحله بهینه افزودن PbO اضافه، مقدار درصد وزنی آن برای داشتن ترکیبی با خواص بهینه ارزیابی شد. ٥ نمونه حاوی ١ تا ٥ درصد وزنی PbO اضافه، سنتز و مورد بررسی قرار گرفت. از مقایسه نتایج به دست آمده از این نمونه‌ها نتیجه گرفته شدکه نمونه حاوی1 Wt % PbO اضافه نسبت به سایر نمونه‌ها، دارای خواص بهینه است.نتایج بهینه سازی درصد PbO اضافی و نحوه ی افزودن آن به ترکیب، برای سایر ترکیبات پیزوالکتریک حاوی سرب نیز قابل به کارگیری می باشد.

کلیدواژه‌ها

فروالکتریک های رلاکسور-سرب اضافه

کلسینه

تف جوشی

20.1001.1.24767131.1403.10.2.8.2

موضوعات

سونار

عنوان مقاله English

Investigation of the effect of excess PbO on the dielectric and piezoelectric properties of Mn-doped PIN-PMN-PT piezoceramic

نویسندگان English

Faezeh Malakoutikhah ¹

Mohsen Yazdanmehr ¹

Hossein Ahmadvand ²

Hadi Papi ¹

Mohammad Reza Kazerani Vahdani ³

¹ Faculty of Applied Sciences, Malek Ashtar University of Technology, Iran

² Department of Physics, Isfahan University of Technology, Isfahan, Iran

³ Faculty of Naval Aviation, Malek Ashtar University of Technology, Iran

چکیده English

In this paper, the dielectric and piezoelectric properties of Mn: 25PIN-40PMN-35PT piezoceramic samples with different steps of adding excess PbO was investigated. For this purpose, 4 samples were synthesized by two-step columbite precursor method. Structural and piezoelectric characterizations of samples were done. The results showed that the sample which additional excess PbO was added after calcination of the powder and its re-calcination, has optimal properties (Ec=20.95 kV/cm, TC=218 ℃, ε⁄ε0=1650 and d33=177 pC/N) compared to other samples. After determining the optimal step of adding excess PbO, its weight percentage was evaluated to have a composition with optimal properties. In this regard, 5 samples containing 1 to 5 Wt% excess PbO were synthesized and investigated. The comparison of the data obtained from these samples showed that the sample containing 1 wt% excess PbO has optimal properties compared to other samples. The results of optimizing the percentage of excess PbO and how to add it to the composition can also be applied to other lead-containing piezoelectric compositions.

کلیدواژه‌ها English

Relaxor-PT ferroelectrics

excess PbO

Calcination

Sintering

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