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PENGARUH SINTERING BERULANG TERHADAP STRUKTUR KRISTAL DAN MORFOLOGI PERMUKAAN BI,PB-SR-CA-CU-O YANG DIDOPING MG | Amri | Widyariset

PENGARUH SINTERING BERULANG TERHADAP STRUKTUR KRISTAL DAN MORFOLOGI PERMUKAAN BI,PB-SR-CA-CU-O YANG DIDOPING MG

Fauzan Amri, Bintoro Siswayanti, Sigit Dwi Yudanto, Agung Imaduddin, Nurul Suhada, Rizki Syahfina, Eidi Sihombing

Abstract


Telah dilakukan sintesis pelet superkonduktor Bi1.6Pb0.4Sr2Ca1.8Mg0.2Cu3O10+δ menggunakan metode padatan dan proses sintering berulang.Benda uji yang dibuat dianalisis dengan menggunakan XRD (X-ray Diffractometer) dan SEM – EDS (Scanning Elektron Microscopy - Energy Dispersive Spectroscopy). Berdasarkan analisis XRD didapatkan fase yang terbentuk adalah (Bi,Pb)-2223, (Bi,Pb)-2212, CaPbO3, Ca2PbO4 dan MgO. Perlakuan sintering berulang pada benda uji BPSCCO doping Mg dapat meningkatkan fraksi volume (Bi,Pb)-2223 dari 37% menjadi 68%. Berdasarkan analisis SEM, didapatkan luas porositas pada morfologi permukaan benda uji sebesar 4,742%. Adapun dengan perlakuan sintering berulang menyebabkan terjadinya penurunan luas porositas dari 4,742% menjadi 2,132% hingga 1,589% untuk benda uji sintering 1 kali, 2 kali, dan 3 kali. Bentuk butir juga semakin lebih seragam akibat dari perlakuan sintering berulang yang diberikan pada sampel.


Keywords


BPSCCO; Doping Mg; Fraksi volume (Bi,Pb)-2223; Porositas; Sintering berulang

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DOI: http://dx.doi.org/10.14203/widyariset.4.2.2018.197-204

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